BGAS-MULTICHOICE.pdf
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BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 1 Choose the correct answer from the choice (answers on last page) 1. 1000 um = a. 1cm b. 1mm c. 10mm d. 0.1mm 2. Which one is non-metallic abrasive a. Iron Silica b. Steel Shot, c. Steel Grit, d. Grit-Shot Mix 3. VS% relate to a. Volatile b. Non volatile c. Total Paint volume d. Activator 4. Thixotrops are of _____________ type a. Liquid b. Solid c. Gel d. Gas 5. Addition of thixotropes helps to avoid _________ a. Blistering b. Sagging c. Cracking d. Flaking 6. Which coating fault occurs when over thinning a paint a. Pinholes b. Run c. Spot rusting d. Hair cracking 7. Which fault relate to Peeling a. Orange peel b. Flaking c. Wrinkling d. Cracking 8. Chemical cleaning is another name for a. Silver nitrate test b. Potassium ferry cyanide test c. Pickling d. Copper sulphate test
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BGAS Grade 3/2 Practice Question & Answer | Page 1 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. Which fault can be avoided when bitumen removed from paint system a. Bittines b. Blistering c. Cracking d. Bleeding 10. What is the actual DFT ,if banana gauge shows 335um when checked on galvanizing a. 335um b. 265um c. 235um d. 435um 11. Ford flow cup nozzle is made of a. Aluminum alloy b. Stainless steel c. Nickel d. Tungsten carbide 12. _______________ can be used to check pressure a. Hygrometer b. Surface profile needle gauge c. Hypodermic needle gauge d. Touch pyrometer 13. Dolly test used to check _____________ a. Hardness b. Flexibility c. DFT d. Adhesion 14. What will be the unit of viscosity of a thixotropes paint a. Second b. Centipoises c. Ns/m2 d. Stoke 15. How to use comb gauge on a pipe a. Perpendicularly b. Circumferentially c. Longitudinally d. Not possible 16. If the required DFT is 50um ,then the particle size in the paint should be _____ a. 50um b. Above 50um c. Below 50um d. All the above 17. which laminar pigment is best for UV protection a. Aluminum Flake b. MIO c. Glass Flake d. Graphite apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 2 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. Fe++ is ______________ a. An atom b. Molecule c. Ion d. Iron Substrate 19. Which is cathode in corrosion a. Water b. Oxygen c. Substrate d. Electrons released 20. Which one is more noble a. Silver b. Steel c. Magnesium d. Zinc 21. Hygroscopic slats cause a. Rash rusting b. Pinholes c. Rogue peak d. Blisters 22. Which pressure suitable for dry blasting a. 20psi b. 100psi c. 220psi d. 450psi 23. Degree of roughness related to a. Abrasive blasting b. Hand and power tool c. Anchor pattern d. Abrasive hardness 24. Un fused area in steel is _____________ a. Sliver b. Rogue Peak c. Hackle d. Pinhole 25. Transparent layer in replica tape is ____________ a. Milar b. Mylex c. Mylar d. Testex 26. ______________ NOT SUITABLE FOR PROFILE MEASURMENT a. Dial micrometer b. Surface profile needle gauge c. Surface comparator d. Corn plaster method apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 3 of 56
BGAS PRACTICE QUESTION & ANSWER
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27. Very coarse profile will occurs when a. High pressure Water blasting b. Flame cleaning c. Dry Abrasive blasting d. Needle Gunning 28. Which one is not quantitative? a. Silver nitrate test b. Dolly test c. Bristle sample patch test d. Banana gauge test 29. Which is not a property of binder a. Cohesive strength b. Leafing effect c. Resist water d. Hold pigments in suspension 30. Which one is saturated a. Linceed oil b. Tung oil c. Palm oil d. China wood oil 31. Which one is not a pigment a. Coal tar b. Red lead c. MIO d. Silicone 32. Which one cannot be used for yellow colour paint a. Chromium b. Cobalt c. Calcium d. Iron 33. Which one is not toxic a. Zinc chromate b. Zinc phosphate c. Calcium plumbate d. Coal tar 34. Which property of a solvent is not best a. Low evaporation rate b. Low toxicity c. Low flashpoint d. High evaporation rate 35. Paint is a _________________ a. Solution b. Solute c. Solvent d. Dispersion apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 4 of 56
BGAS PRACTICE QUESTION & ANSWER
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36. Which one is convertible a. CR b. Vinyl c. Natural Resin d. Emulsion 37. Which one is not a direct charge mill a. Ball mill b. Attritor Mill c. Bead mill d. High Speed Disperser 38. Reccova valve is ____________ a. Control abrasive transfer b. Stores abrasives c. Removes water d. Control air from compressor 39. Specular Hematite is other name a. Rust b. Millscale c. MIO d. Steel flex 40. Toxicity measured in a. Mph b. Psi c. Ppm d. Cfm 41. Mixing of two pack can be calculated by a. Pykno meter b. Closed Abel Cup c. Pyro meter d. Crypto meter 42. Approx viscosity of paint is a. 1 centi poise b. 1 stoke c. 2.4 Ns/m2 d. 1.2 gm/cc 43. Air temperature can be calculated by a. Hygro meter b. Thermo stat c. Limpet gauge d. Strobo scope 44. Chalking occurs due to a. Coating age b. Weathering c. Shelf life problem d. Hygro scopic salts apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 5 of 56
BGAS PRACTICE QUESTION & ANSWER
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45. Vaccume blasting is a. Water blasting b. Abrasive blasting c. Closed blasting d. Air blasting with water 46. Inclusion is defect related to a. Rogue peak b. Lamination c. Hackle d. High thickness profile 47. Which fault happens when over apply zinc silicate a. Sagging b. Run c. Mud cracking d. Holidays 48. Lifting of coating material from surface is ______ a. Wrinkling b. Lifting c. Flaking d. Mud cracking 49. _______________ not a destructive test a. PIG b. Saberg Thickness Drill c. Koenig Albert d. Horse Shoe 50. How much air suppled ,if nozzle size is ½ inch a. 450 cfm b. 413 cfm c. 100 cfm d. 220 cfm 51. __________ can be applied when Relative humidity = 100% a. Epoxy b. CR c. Poly urethane d. Zinc Rich Epoxy 52. Which PH range is required after chemical cleaning of steel substrate a. 7 b. 7 - 14 c. 4.5 – 7 d. 0 53. Which Abrasive is preferred to use on stainless steel a. Copper slag b. Steel Grit c. Steel Shot d. Aluminium oxide apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 6 of 56
BGAS PRACTICE QUESTION & ANSWER
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54. Which one is not a property of binder a. Adhesion b. Cohesion c. Evaporation d. Dielectric strength 55. Metal sprayed surfaces can be sealed with a. Phenolics b. Silicones c. Cellulose Resins d. Vinyl 56. A saturated oil can be used in binder for a. Fast drying b. Shelf life c. Flexibility d. Anti skinning 57. Bittiness fault can be happened by a. Millscale b. Soluble Salts c. Uneven Profile d. Contamination 58. Which one is a noncompliance? a. Coating with added thinners b. Coating which suitable with the requirements of the EPA c. Coating which suitable for the steel substrate d. Coating with non-recommended thinner 59. Burnishing occurs when a. High pressure Water blasting b. Flame cleaning c. Wire brushing d. Needle Gunning
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BGAS Grade 3/2 Practice Question & Answer | Page 7 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 1 Answers 1. 1mm 2. Iron Silica 3. Non volatile 4. Gel 5. Sagging 6. Run 7. Flaking 8. Pickling’ 9. Bleeding 10. 235um (deduct 100um) 11. Stainless steel 12. Hypodermic needle gauge 13. Adhesion 14. Ns/m2 15. Longitudinally 16. below 50um 17. Aluminum Flake 18. Ion 19. Electrons released 20. Silver 21. Blisters 22. 100psi 23. Anchor pattern 24. Sliver 25. Mylar 26. Surface comparator (assessment only) 27. Needle Gunning 28. Silver nitrate test 29. Leafing effect 30. Palm oil 31. Silicone
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32. Iron 33. Zinc phosphate 34. Low flashpoint 35. Dispersion 36. Natural Resin 37. Bead mill 38. Removes water (another name of knockout pot) 39. MIO 40. Ppm 41. Pykno meter (density cup) 42. 2.4 Ns/m2 43. Hygro meter (whirling) 44. Coating age 45. Closed blasting 46. Lamination 47. Mud cracking 48. Flaking 49. Horse shoe 50. 413 cfm 51. Poly urethane 52. 4.5 - 7 53. Aluminium oxide 54. Evaporation 55. Silicones 56. Self-life 57. Contamination 58. Coating with non-recommended thinner 59. Wire brushing
BGAS Grade 3/2 Practice Question & Answer | Page 8 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 2 Choose the correct answer from the choice (answers on last page) 1. What is mean by compliant coating? a. Coating which applied on specified atmosphere condition b. Coating which suitable with the requirements of the EPA c. Coating which suitable for the steel substrate d. Coating with noncompliance report 2. Which situation is expressed as damp surface a. Surface with detectable water b. Surface temperature below dew point c. Surface with a noticeable film of water d. Surface temperature above dew point 3. Which information is not available in MDS a. Flash point b. Dew point c. VS% d. Recommended Thinner 4. Who is having duty of Safety on a Working site a. HSE (Health & safety executive) b. Contractor c. Engineer d. Employees 5. ___________ used to detect the voltage in Impressed current system a. National Grid b. Transformer Rectifier c. Copper/Copper Sulphate half-cell electrode d. Sodium Chloride 6. A Coating continues protection of 7 years, Which falls in _____________ a. Long term protection b. Medium term protection c. Short term protection d. Fixed term protection 7. In dragger tube number specified is n=5,what is RAQ a. 500 ppm b. 5 rpm c. 500 cfm d. 500 cc 8. A Galvanized substrate with oxide layer has formed called a. New Galvanising b. Weathered Galvanising c. Unsuitable galvanizing d. Previously painted Galvanising
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BGAS Grade 3/2 Practice Question & Answer | Page 9 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. A primer used for pretreatment for zinc metal surfaces. a. Zinc rich epoxy b. T.Wash c. FBE d. Zinc Phosphate 10. PA 10 specification is suitable for use in the following area: a. Onshore installations b. offshore installations c. internal coatings of pipes d. below ground (buried) 11. After applying primer on steel surface, Paint got wetted by raining. As a painting inspector what you do? a. Wait for water to dry b. Blast to remove existing primer, recoat c. Continue next stage after rain d. Recoat primer without removing existing coat 12. Who is having permission to change a specified paint system a. Paint technologist b. Painting inspector c. Engineer d. Contractor 13. Which surfaces comes on hot duty surfaces a. Metal surfaces attaining a temperature above 340o C b. Metal surfaces attaining a temperature above 100o C c. Metal surfaces attaining a temperature above 37o C d. Metal surfaces attaining a temperature above 540o C 14. At which temperature aluminium melts a. 100 oC b. 240 oC c. 425 oC d. 625 oC 15. A Multi component paint dried by a. Solvent evaporation b. Oxidation c. Chemical reaction d. Coalescense 16. Biscuit Gauge is another name for a. Hegman’s grind gauge b. Surface Comparator c. Banana Gauge d. Comb Gauge 17. Gold leaf test is used for _________ a. Adhesion b. Drying c. Residual tack d. Dust detection apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 10 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. A single pack epoxy paint dry by a. Coalescence b. Chemical curing c. Oxidation d. Solvent evaporation 19. Pull of Adhesion is a term associated with a. Tinsley pencil b. Banana Gauge c. HATE d. Dolly Test 20. Which is not a property of extender pigments a. Increase Gloss b. Increase Adhesion c. Increase Cohesion d. Increase film strength 21. ___________ can be used to detect the presence of oil or grease a. Copper sulphate b. Transparent Sticking Paper c. UV Light d. Brestle Sample Patch 22. A coating fault which resembles holidays a. Checking b. Cratering c. Crazing d. Cissing 23. Which grade of surface preparation required for hot duty surfaces from above 150 o C a. Sa1 b. Sa2 c. Sa2½ d. Sa3 24. In Electrostatic spray, The thickness of paint as controlled by a. Time used to spray b. Velocity of the particles c. Voltage d. Degree of dispersion 25. Over thickness of Zinc silicate cause a. Sagging b. Mud Cracking c. Curtaining d. Cohesive failure 26. Which factor does not affect gloss of a paint film a. CPVC b. Flash Point c. Particle Size d. Solvent type apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 11 of 56
BGAS PRACTICE QUESTION & ANSWER
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27. According to Transco PA10,which metal spray not required a sealer a. TSA b. Polysiloxane Inorganic Coating c. Poly Vinyl Buterol d. Inorganic Zinc Silicate 28. It is advisable to apply Moisture curing polyurethane by a. Airless spray b. Brushing c. Roller d. Padding 29. IGE SR 21 is associated with a. Gas Plant Manufacture b. Handling of Methanol c. Abrasive Blasting Safety d. Using of Sand Abrasive 30. Which paint application have “Insulation” effect a. Airless Spray b. Remote Pressure pot c. Dip coating d. Electrostatic spray 31. Reflectometer measures _________ a. Aggregate Size b. Agglomerates Percentage c. Gloss d. Colour 32. A Non Destructive test can be done a. When substrate contain MIO b. When substrate is non ferromagnetic and coating is Ferro magnetic c. When substrate is Ferro magnetic and coating is Ferro magnetic d. When substrate is ferromagnetic and coating is non Ferro magnetic 33. Which one is not included in non ferrous substrate a. Stainless steel b. Mild steel c. New Galvanising d. Weathered Galvanising 34. Which one is not a compound in millscale a. FeO b. Fe2O3 c. Fe2 O4 d. Fe3O4 35. What is the approximate overlap area in painting a. 100 mm b. 100 cm c. 10mm d. 100 um apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 12 of 56
BGAS PRACTICE QUESTION & ANSWER
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36. In colour attributes, Brightness also referred by the term a. Chroma b. Intensity c. Value d. Weight 37. What is the minimum time for over coating a. 30 Minutes b. 4 Hrs c. 12 Hrs d. 24 Hrs 38. Colour of Millscale a. Dark Blue b. Dark Grey c. Black d. No Colour 39. RAL number represents a. Batch Number b. Thinner Code c. Colour Code d. Solvent Code 40. Ropiness is fault look like a. Roller Stiple b. Rivelling c. Brush Marks d. Blisters 41. ____________ Abrasive is preferred for Wheel abrator a. Steel Grit b. Steel Shot c. Grit and Shot Mixed d. Copper Slag 42. _____________ flow cup can be used to check viscosity of hot paint a. Ford b. Zahn c. ISO d. DIN 43. Miser Valve ___________________ in dry blasting a. Controls the Air Pressure b. Controls the flow of abrasives c. Removes oil and water d. Avoids leakage 44. Which solution is used for cathodic disbandment test? a. Slightly acidic liquid b. Salt water c. Alkaline liquid d. Distilled water apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 13 of 56
BGAS PRACTICE QUESTION & ANSWER
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45. Concentration and temperature of sulphuric acid in pickling process a. 5-10% , 65-70 oC b. 65-70% , 5-10 oC c. 2%, 80 oC d. 80%, 65-75 oC 46. Which one is not a laminar pigment a. Graphite b. Aluminium flake c. Glass flake d. China Clay 47. Phosphating process of steel structure is termed as a. Pickling b. Passivation c. Cathodic protection d. Salt Detection 48. Millscale test done , when Blast grade is a. Sa1 b. Sa2 and Above c. Sa2½ and Above d. Sa3 49. Which one is not a Paint fault a. Grinning through b. Efflorescence c. Cracking d. Bittiness 50. What is the total thickness of compliant epoxy based paint a. 325 um b. 225um c. 265um d. 365um 51. Which term is not relate with binder a. VOC b. Film former c. Vehicle d. Non volatile 52. Internal coating of pipeline come under a. PA7 b. PA8 c. PA9 d. PA10 53. If a comb gauge show 120-140 um ,then the actual Dft is a. 120 um b. 130um c. 140 um d. 120 / 140 um apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 14 of 56
BGAS PRACTICE QUESTION & ANSWER
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54. De-lamination is a fault occurs when using a. Epoxy b. CR c. Micaceous Iron Oxide d. Poly Urethane 55. Nuts and Bolts can be coated by a. Calorising b. Galvanising c. Sheradizing d. Anodising 56. ________________are examples for natural resin a. Amber, Laq b. Soya Oil, Tung Oil c. Bitumen , Coal tar d. Phenolic resin, Cellulosic resin 57. If Paint in a density cup weighs 135gm,Relative Density is ______ a. 135 b. 13.5gm/cc c. 1.35 d. 1.35 gm/cc 58. Which paint from below, can be applied over Phenolics a. CR b. Epoxy c. Alkyd d. None of these 59. Which warning symbol represents Toxic
b.
a.
c.
d.
60. If more pigments added in a paint, then the surface should be ___________ a. Gloss b. Matt c. Grinning d. Fast Drying 61. ____________ is an example for aliphatic HC solvents a. Water b. Xylene c. Turpentine d. Acetone 62. Non drying oils can be used in paints, for __________ a. Fast drying b. Slow drying apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 15 of 56
BGAS PRACTICE QUESTION & ANSWER
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c. Activate Chemical reaction d. Flexibility 63. Which additive used in paints to stop settlements a. Drying oils b. Non Drying oils c. Wax d. Anti skinning agents 64. If an airless spray pump ratio 35;1 delivery pressure 2800.howmuch the inlet pressure a. 100psi b. 90psi c. 80psi d. 70psi 65. How atomization is achieved in conventional spray a. Two air channels outside the nozzle b. Air pressure applied before nozzle c. Paint forced at high pressure d. Hydraulic pressure 66. Which term is used when heat applied over 65 oC for Drying of Paint a. Metal Spray b. Air Drying c. Stoving d. Forced Drying 67. The following is not an information of Daily report sheet a. Dew point b. Relative Humidity c. Relative Density d. Air Temperature 68. Which one is thermoplastic a. Poly ethylene b. Poly urethane c. Epoxy d. Natural Resin 69. Steel temperature can be measured by a. Psychro meter b. Limpet Gauge c. Thermo meter d. Horseshoe gauge 70. What is the solution ,if damage occurs to a galvanizing a. T Wash b. Zinc Rich Epoxy c. CR d. Water Borne Acrylic 71. Which mill widely used for producing thick paint a. Ball Mill apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 16 of 56
BGAS PRACTICE QUESTION & ANSWER
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b. Pearl Mill c. Triple Roll Mill d. Single Roll Mill 72. Which one is suitable for steel work a. Short oil paint b. Medium oil paint c. Long Oil paint d. Full Oil paint 73. Pigment, which dissolve in a binder called a. Lacquer b. Dye c. Varnish d. Solute 74. If 11 Litres Paint Weighs 18 Kg then density = a. 1.8 gm/cm b. 1.6 gm/cm c. 1.1 gm/cc d. 1.6 gm/cc 75. Ford Flow cup made of ___________ a. Stainless Steel b. Aluminium Alloy c. Mild Steel d. Glass Reinforced Plastic 76. When temperature increases,__________ a. Viscosity increases b. Viscosity decreases c. Viscosity Stable d. Drying time increases 77. What is the approximate induction period of CR a. 20 minutes b. 30 minutes c. 6-8 hrs d. Not Applicable 78. Stroboscope checks a. Rotation b. Polarity c. Potential d. Aggregate count 79. Which paint mill produce expensive materials a. Triple roll mill b. Single roll mill c. Sand mill d. Ball mill 80. High speed stone mill is another name for apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 17 of 56
BGAS PRACTICE QUESTION & ANSWER a. b. c. d.
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High speed disperser Pearl mill Colloid mill Attritor Mill
81. Which paint is not suitable for EPA a. Water borne b. High volume solid c. Solvent Based d. Solvent free 82. By which polymerisation method a 2 pack epoxy paint dry a. Cross linked Polymer b. Branched Polymer c. Solution Polymer d. Linear Polymer 83. Transco Specification PA9 Specifies a. New and Maintenance painting at work and site for AGI b. Paint Properties and Performance c. Internal coating of steel small bore pipe d. Preparation of steel substrate before application of paint 84. Which term cannot be used for solid particles in binder a. Aggregates b. Emulsion c. Degree of dispersion d. Fineness of grind 85. Which one is more suitable for CR paint to increase flexibility a. Alkyd resin b. Linceed oil c. Bentones d. Coconut oil 86. __________ is not a unit of viscosity a. Stoke b. Poise c. Littre d. Second 87. Which type of Comb gauge is not available a. Square b. Circle c. Triangular d. Rectangular 88. Which application method used to apply paints on damp surface a. Brush b. Roller c. Airless Spray d. Dip coating apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 18 of 56
BGAS PRACTICE QUESTION & ANSWER
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89. What is BS 4800 specifies a. Colour co-ordination b. Specification of abrasive size sieves c. Methods of test for paints d. Glossary of paint and related terms 90. Which application greatly reduce pinholes a. Brush b. Spray c. Aerosol d. Roller 91. Spray tip with adjustable aperture size known as a. Carbide b. Venturi c. Titan d. Taber 92. Pyro meter is an instrument to check a. Adhesion b. Hardness c. Steel Temp d. Density 93. Graticule scale is a part of a. PIG b. Hegman Grind Gauge c. Eccentric Wheel d. Tough type Pfund Crypto meter 94. MDS shows a two pack paint density is 1.35 gm/cc, when the density check completed it shows the density as 1.25.Which one is true a. Base Part is High b. Activator Part is High c. Mix ratio on MDS is incorrect d. Activator Part is Low 95. In which temperature Density,Viscosity etc tests of Paints done a. 20 ºC ± 0.5 ºC b. 37 ºC ± 0.5 ºC c. 100 ºC ± 0.5 ºC d. Temperature not affected 96. If metal spray applied on a thin steel plate , a. Plate should not be heated b. Plate should be preheated c. Plate should be post heated d. Cannot be applied 97. BS 7079 does not contains a. Rust Grades b. Blast Grades c. Hand and Power tool Grades apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 19 of 56
BGAS PRACTICE QUESTION & ANSWER
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d. Salt tests on Substrate 98. Wa1 ,Wa2 are grades of a. Abrasive blasting b. Closed blasting c. Water Blasting d. Weathering Grades 99. When using replica tape 50um deducted because _________ a. Thickness of paper b. Thickness of transparent layer c. Thickness of Testex d. Dial micrometer Criteria 100.
Which blasting is suitable for non-ferrous substrates a. Thorough abrasive blasting b. Sweep blasting c. Sa2½ d. Not Applicable
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BGAS Grade 3/2 Practice Question & Answer | Page 20 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 2 Answers 1. Coating which suitable with the requirements of the EPA 2. Surface temperature below dew point 3. Dew Point 4. Employees 5. Copper/Copper Sulphate half cell electrode 6. Long term protection 7. 500cc 8. Weathered Galvanising 9. T. Wash 10. Onshore installations 11. Blast to remove existing primer, recoat 12. Engineer 13. Metal surfaces attaining a temperature above 100º C 14. 625 º C 15. Chemical reaction 16. Comb Gauge 17. Residual tack 18. Oxidation 19. Dolly test 20. Increase gloss 21. UV light 22. Cissiong 23. SA3 24. Voltage 25. Mud Cracking 26. Flash point 27. Polysiloxane Inorganic Coating 28. Brushing 29. Abrasive Blasting Safety 30. Electrostatic Spray 31. Gloss 32. When substrate is ferromagnetic and coating is non Ferro magnetic 33. Mild steel 34. Fe2 O4 35. 100mm 36. Value 37. 4 hours 38. Dark blue 39. Colour Code 40. Brush marks 41. Steel shot 42. Zahn 43. Controls the flow of abrasives 44. Salt water 45. 5-10% , 65-70 oC 46. China clay 47. Passivation 48. SA3 49. Efflorescence 50. 265 um 51. VOC apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 21 of 56
BGAS PRACTICE QUESTION & ANSWER
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52. PA8 53. 120 / 140 54. Micaceous Iron Oxide 55. Sheradizing 56. Amber ,Laq 57. 1.35 58. Alkyds
59. 60. Matt 61. Turpentine 62. Flexibility 63. Wax 64. 80psi 65. Two air channels outside the nozzle 66. Stoving 67. Relative Density 68. Poly ethylene 69. Limpet Gauge 70. Zinc Rich Epoxy 71. Triple roll mill 72. Short oil paint 73. Dye 74. 1.6 gm/cc 75. Aluminium Alloy 76. Viscosity decreases 77. Not Applicable 78. Rotation 79. Single roll mill 80. Colloid mill 81. Solvent based 82. Cross linked 83. Paint properties and performance 84. Emulsion 85. Alkyd resin 86. Litre 87. Circle 88. Brush 89. Colour Co-ordination 90. Brush 91. Titan 92. Steel temp 93. PIG 94. Activator part is high 95. 20 ºC ± 0.5 ºC 96. Plate should be post heated 97. Salt test on substrate 98. Water blasting 99. Thickness of transparent layer 100. Sweep blasting apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 22 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 3 Choose the correct answer from the choice 1. In corrosion circuit do electrons flow from a. Anode to cathode b. Cathode to electrolyte c. Cathode to anode d. Anode to electrolyte 2. Painting on contamination, is a reason for a. Osmotic blister b. Bittiness c. Un even profile d. Chalking 3. Copper/Copper sulphate half-cell electrode is used to a. Monitor CP Voltage b. Supply current for CP c. Detect Millscale d. Rectify AC to DC 4. If 5 Liters Paint weighs 6.75 Kg, Density is ______ a. 0.74 gm/cc b. 0.74 c. 1.35 gm/cc d. 1.35 5. Colour Brightness can be specified by the term a. Chroma b. Intencity c. Weight d. Reflectance value 6.
Advantage of eccentric wheel for wft measurement is a. Correct DFT can be calculated from result b. Permanent record c. No other method for curved surface d. Can be used for metal spray method
7. Example for suspension a. Water Based Emulsion b. Oil Mixed With Water c. Salt Water d. Pigmented paint 8. Which paint is specified to use on repair areas of galvanising a. TSA b. Zinc Rich Epoxy c. Urethane d. Alkyd Resin
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BGAS Grade 3/2 Practice Question & Answer | Page 23 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. Which binder have no problem to overcoat on white spirit based binder a. Alkyds b. Epoxy c. CR d. Natural Resin 10. Which metal corrode fast according to bimetallic principle a. Less electronegative b. More Electropositive c. More noble d. Less Noble 11. High pressure abrasive blasting operates at which pressure a. 100 psi b. 2500 psi c. 20000 psi d. 30000 psi 12. Too much binder to solid ratio gives a. Good Opacity b. Good Gloss c. Cohesive Strength d. Porous Film 13. Specular Hematite is commonly called a. Millscale b. Rust c. MIO d. Iron Sulphate 14. Which application method provides uniform film thickness a. Stripe coat b. Airless Spray c. Conventional spray d. Electrostatic spray 15. Which paint is more suitable for hot duty surface above 150ᵒ C a. Zinc Silicate b. High Solid Epoxy c. Urethane d. CR 16. Which surface preparation is used for weathered galvanising a. Sweep Blast b. Stiff Bristle Brushing c. Through Blast d. Sa2½ 17. Amplitude is a term associated with a. Dry film thickness b. Wet film thickness c. Matt Film d. peak to trough height apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 24 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. Which solvent group is suitable for chlorinated rubber paints a. Xylene b. Ketones c. Water d. White Spirit 19. Which coating fault will look like discoloration a. Chalking b. Bleeding c. Cissing d. Curtaining 20. Degree of cleanliness not depends a. Time spent on area b. Angle of impingement c. Velocity of the particles d. Substrate rust grade
Question Bank – 3 Answers 1. C
8. B
15. A
2. A
9. B
16. B
3. A
10. D
17. D
4. 1.35gm/cc
11. C
18. A
5. D
12. B
19. B
6. A
13. C
20. D
7. D
14. D
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BGAS Grade 3/2 Practice Question & Answer | Page 25 of 56
BGAS PRACTICE QUESTION & ANSWER 1.
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Question Bank – 4
Choose the correct answer from the choice 1. How many cleaning grades available by using hand and power tools according to BS 7079 a. 14 b. 6 c. 4 d. 16 2. Example for paint involving barrier principle a. Zinc rich epoxy b. Zinc or aluminium c. Urethane d. Rust inhibitive primers 3. According to Transco , an Engineer is a. Appointed by a contractor and notified in writing to client b. Appointed by Client and notified in writing to contractor c. Responsible for coating and records d. Higher authority 4. If 7.5 Liters Paint weighs 9.75 Kg, Relative Density is ______ a. 13.0 gm/cc b. 13.0 c. 1.30 gm/cc d. 1.3 5. Fineness of grind is a term used for a. Premixing b. Aggregate size c. Profile roughness d. PVC 6.
Very thorough blast cleaning is refers to a. Sa1 b. Sa2 c. Sa2½ d. Sa3
7. RAQ is an abbreviation of a. Required Area Quantity b. Repaired Area Quality c. Required Air Quantity d. Report and Quality Record 8. If Profile thickness is higher than specified ,result will be a. Rash rusting b. Cause Paint adhesion c. Blisters d. Millscale
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BGAS Grade 3/2 Practice Question & Answer | Page 26 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. What result will get by Temperature Cycling test a. Cracking b. Blistering c. Chalking d. Discoloration 10. Why an inspector use PIG Gauge a. When substrate is non ferromagnetic and coating is non Ferro magnetic b. When substrate is non ferromagnetic and coating is Ferro magnetic c. When substrate is Ferro magnetic and coating is Ferro magnetic d. When substrate is ferromagnetic and coating is non Ferro magnetic 11. High pressure abrasive blasting operates at which pressure a. 100 psi b. 2500 psi c. 20000 psi d. 30000 psi 12. Too much binder to solid ratio gives a. Good Opacity b. Good Gloss c. Cohesive Strength d. Porous Film 13. Specular Hematite is commonly called a. Millscale b. Rust c. MIO d. Iron Sulphate 14. Which application method provides uniform film thickness a. Stripe coat b. Airless Spray c. Conventional spray d. Electrostatic spray 15. Which paint is more suitable for hot duty surface above 150ᵒ C a. Zinc Silicate b. High Solid Epoxy c. Urethane d. CR 16. Which surface preparation is used for weathered galvanising a. Sweep Blast b. Stiff Bristle Brushing c. Through Blast d. Sa2½ 17. Amplitude is a term associated with a. Dry film thickness b. Wet film thickness c. Matt Film d. peak to trough height apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 27 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. Which solvent group is suitable for chlorinated rubber paints a. Xylene b. Ketones c. Water d. White Spirit 19. Which coating fault will look like discoloration a. Chalking b. Bleeding c. Cissing d. Curtaining 20. Which one is a direct charge mill a. Sand Mill b. Single roll mill c. Triple roll mill d. Attritor Mill
Question Bank – 4 Answers 1. b
8. a
15. a
2. c
9. a
16. b
3. b
10. c
17. d
4. d
11. c
18. a
5. b
12. b
19. b
6. c
13. c
20. d
7. c
14. d
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BGAS Grade 3/2 Practice Question & Answer | Page 28 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 5 Choose the correct answer from the choice 1. Which one of the following is more noble ? a. Zinc b. Steel c. Millscale d. Aluminium 2. Which one is not associated with wet blasting? a. Spark free b. Profile roughness c. Remove Toxic contents d. Remove Soluble Salts 3. Concentration and temperature of sulphuric acid in pickling process a. 5-10% , 65-70 oC b. 65-70% , 5-10 oC c. 2%, 80 oC d. 80%, 65-75 oC 4. Which PH range is required after chemical cleaning of steel substrate a. 7 b. 7 - 14 c. 4.5 – 7 d. 0 5. Which one is a non toxic pigment? a. Zinc Phosphate b. Zinc Chromate c. Read Lead d. Coal tar 6. Another name for E.M.F Series a. Electromagnetic spectrum b. Electrical chemical series c. Galvanic list d. Atomic / Periodic table 7. Indentor test can be used to check? a. EPA ( Environment Protect Act) b. IGE / TD / 05 c. BS 7079 d. IGE SR 21 8. Which mills used for producing mastic and fillers a. Bead mill b. Ball Mill c. Attritor Mill d. Triple roll Mill
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BGAS Grade 3/2 Practice Question & Answer | Page 29 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. Which paints are not recommended by EPA a. Solvent free b. High VS c. Low VS d. Water Borne 10. PVB Primers mainly used for a. All ferrous substrates b. Aluminium c. Galvanising d. Steel Substrates 11. Which polymerisation done in oxidation drying paints a. linear b. Solution c. Branched d. Cross linked 12. Which one is used to retard the formation of skin in paint solution a. Palm Oil b. Octoic Acid c. Methyl Ethyl Ketoxime d. Bentones 13. Which one is a non compliance? a. Coating with added thinners b. Coating which suitable with the requirements of the EPA c. Coating which suitable for the steel substrate d. Coating with non recommended thinner 14. A laminar pigment with excellent UV Reflectance properties a. Glass flake b. Aluminum Flake c. MIO d. Mica 15. Which one is not quantitative a. Silver nitrate test b. Dolly test c. Bristle sample patch test d. Banana gauge test 16. Which one is not a property of binder a. Adhesion b. Cohesion c. Evaporation d. Dielectric strength 17. Metal sprayed surfaces can be sealed with a. Phenolics b. Silicones c. Cellulose Resins d. Vinyl apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 30 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. A saturated oil can be used in binder for a. Fast drying b. Shelf life c. Flexibility d. Anti skinning 19. Example for Solvent evaporation drying a. Epoxy b. Alkyd c. Acrylic d. Urethane 20. Which test cannot detect hygroscopic salts a. Pottassium ferricyanide b. Silver nitrate c. Brestle sample patch d. Copper Sulphate
Question Bank – 5 Answers 1. C
8. D
15. A
2. B
9. C
16. C
3. A
10. B
17. B
4. D
11. D
18. C
5. A
12. C
19. C
6. C
13. D
20. D
7. C
14. B
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BGAS Grade 3/2 Practice Question & Answer | Page 31 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 6 Choose the correct answer from the choice 1. Which of the following is regarded as the duty of painting inspector ? a. Record Dew point ,RH and Monitor addition of thinners b. Check surface profile ,cleanliness and make choice of paint colour c. control of abrasive type, blasting pressure and selection of workers d. control of paint storage ,appearance of finish ,and painters time sheet 2. Which of the following is not a drying test? a. Bellotini test b. Beck Koller test c. Wolff Willborn test d. Cross hatch test 3. What is the reason for spot rusting? a. Surface contamination b. Millscale c. Rogue peak d. Hygroscopic salt 4. Adhesion is caused by a. Molecular integration , Molecular connection b. Molecular interference , Molecular attraction c. Molecular cross linking , Molecular attachment d. Molecular interaction , Molecular collaboration 5. What is the specified temperature to do viscosity test? a. 100 oC b. 20 oC c. 25 oC at Seawater d. No Specified temperature 6. Another name for E.M.F Series a. Electromagnetic spectrum b. Electrical chemical series c. Galvanic list d. Atomic / Periodic table 7. Safety consideration associated with abrasive blast cleaning is specified by? a. EPA ( Environment Protect Act) b. IGE / TD / 05 c. BS 7079 d. IGE SR 21 8. Which person on site is responsible for site safety a. Painting Inspector b. Site Safety Officer c. Contractor d. All Employees
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BGAS Grade 3/2 Practice Question & Answer | Page 32 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. Thermal spray coatings method may expel a VOC of a. 100% b. Near 75% c. Near 50% d. 0% 10. The Pencil Hardness Tests is used to determine which of the following? a. Scratch hardness of a coating b. Adhesion of a coating c. Abrasion resistance of a coating d. Indentation hardness of a coating 11. Why a painting inspector keep potassium ferry cyanide solution a. For checking millscale b. For checking hygroscopic salts c. For detecting oil and grease d. For pickling process 12. A barrier type paint system ,must be capable of providing a. Good opacity b. Low Permeability c. High Permeability d. Low opacity 13. What is mean by compliant coating? a. Coating which applied on specified atmosphere condition b. Coating which suitable with the requirements of the EPA c. Coating which suitable for the steel substrate d. Coating with non compliance report 14. A coating fault which resembles to holidays a. Cratering b. Crazing c. Cissing d. Ropiness 15. Which is not a property of extender pigments a. Increase Gloss b. Increase Adhesion c. Increase Cohesion d. Increase film strength 16. In Electrostatic spray, the thickness of paint film is controlled by a. Time used to spray b. Delivery Pressure c. Orifice Size d. Voltage 17. Which of the following tests would be performed to determine the adhesion of a coating? a. Pendulum rocker b. Pull off Tape c. Falling sand d. Taber abraser apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 33 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. In FBE coatings greater than 20 thou thickness, holidays are detected using which of the following? a. Wet sponge holiday detector b. Low voltage holiday detector c. High voltage holiday detector d. Low voltage DC holiday detector 19. Example for branched polymerisation e. Epoxy f. Alkyd g. Acrylic h. Urethane 20. What is the volume of paint required to cover a circular area of 15 meters radius, if the material has WFT of 176um a. 76.38 L b. 124.34 L c. 214.34 L d. 31.08 L
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BGAS Grade 3/2 Practice Question & Answer | Page 34 of 56
BGAS PRACTICE QUESTION & ANSWER
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Question Bank – 7 Choose the correct answer from the choice 1. How many cleaning grades available by using power tools according to BS 7079 a. 14 b. 6 c. 4 d. 16 2. Example for paint involving barrier principle a. Zinc rich epoxy b. Zinc or aluminium c. Urethane d. Rust inhibitive primers 3. According to Transco , an Engineer is a. Appointed by a contractor and notified in writing to client b. Appointed by Client and notified in writing to contractor c. Responsible for coating and records d. Higher authority 4. If 7.5 Liters Paint weighs 9.75 Kg, Relative Density is ______ a. 0.76 b. 0.76 gm/cc c. 1.3 gm/cc d. 1.3 5. Fineness of grind is a term used for a. Premixing b. Aggregate size c. Profile roughness d. PVC 6.
Very thorough blast cleaning is refers to a. Sa1 b. Sa2 c. Sa2½ d. Sa3
7. Which of the following tests would be performed to determine the adhesion of a coating? a. Pendulum rocker b. Pull off Tape c. Falling sand d. Taber abraser 8. If Profile thickness is higher than specified ,the result will be a. Rash rusting b. Cause Paint adhesion c. Blisters d. Millscale
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BGAS Grade 3/2 Practice Question & Answer | Page 35 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. What result will get by Temperature Cycling test a. Cracking b. Blistering c. Chalking d. Discoloration 10. Why an inspector must use a PIG Gauge a. When substrate is non ferromagnetic or coating is non Ferro magnetic b. When substrate is non ferromagnetic or coating is Ferro magnetic c. When substrate is Ferro magnetic or coating is Ferro magnetic d. When substrate is ferromagnetic or coating is non Ferro magnetic 11. High pressure dry abrasive blasting operates at which pressure a. 100 psi b. 2500 psi c. 20000 psi d. 30000 psi 12. Too much binder to solid ratio gives a. Good Opacity b. Good Gloss c. Cohesive Strength d. Porous Film 13. Specular Hematite is commonly called a. Millscale b. Rust c. MIO d. Iron Sulphate 14. Which application method provides more uniform film thickness a. Stripe coat b. Airless Spray c. Conventional spray d. Electrostatic spray 15. The test for soluble iron salts is important because a. these salts may be present will increase corrosion rate. b. these salts may be present because of improper manufacturing procedures at the steel rolling mill. c. these salts will mix with the coating and improve adhesion. d. these salts will leach out and create an acidic surface. 16. Which surface preparation is used for weathered galvanising a. Sweep Blast b. Stiff Bristle Brushing c. Through Blast d. Sa2½ 17. Amplitude is a term associated with a. Dry film thickness b. Wet film thickness c. Matt Film apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 36 of 56
BGAS PRACTICE QUESTION & ANSWER
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d. peak to trough height 18. Which solvent group is suitable for chlorinated rubber paints a. Xylene b. Ketones c. Water d. White Spirit 19. Which coating fault will look like discoloration a. Chalking b. Bleeding c. Cissing d. Curtaining 20. Which one is a direct charge mill a. Sand Mill b. Single roll mill c. Triple roll mill d. Attritor Mill
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BGAS Grade 3/2 Practice Question & Answer | Page 37 of 56
BGAS PRACTICE QUESTION & ANSWER
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CW – 1 Questions Choose the correct answer 1. Two examples of Hygroscopic salts would be: (a) Iron Phosphates and Iron Chromates (b) Iron Chlorates and Iron Oxides (c) Iron Sulphates and Iron Chlorides (d) Iron Sulphides and Iron Silicates 2. What is an electrolyte? (a) It is a mixture of salts and water (b) A substance which will conduct electricity and cause rusting (c) Oxidising liquid which will attack steel (d) A substance which will conduct a current and be broken down by it 3. Corrosion is defined as: (a) Rusting of the Cathode by electrophysical means (b) Oxidation of a metal in contact with water (c) Degradation of a material by chemical or electrochemical means (d) Breakdown of the metal by hydrogen 4. 4. (a) (b) (c) (d)
Hydrogen is evolved at: The Anode at all times The Cathode at all times The Cathode as a by-product of the corrosion reaction The Anode as corrosion takes place
5. 5. (a) (b) (c) (d)
The “degradation of material by chemical or electrochemical means” is: Pickling followed by passivation Acid cleaning Corrosion An Electrolyte
6. 6. (a) (b) (c) (d)
The BGas specification for site application of paint systems is BGC/PS/PA10 BGC/PS/CW5 BGC/PS/PA8 BS 7079
7. Another name for the Galvanic List, is: (a) The Corrosion List (b) Electro Negative List (c) Electrical Corrosive Properties Series (d) Electromotive Forces Series 8. In the corrosion circuit, electrons travel from: (a) Anode to cathode (b) Cathode to Anode (c) Electrolyte to both cathode & anode (d) None of the above
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BGAS Grade 3/2 Practice Question & Answer | Page 38 of 56
BGAS PRACTICE QUESTION & ANSWER
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9. If Zinc and Aluminium were in close contact, in the presence of electrolyte: (a) Aluminium would corrode (b) They would corrode equally (c) Zinc would corrode (d) None of the above 10. When the electrolyte is water, what occurs at the cathode during a corrosion reaction? (a) Rusting of the surface would begin (b) Oxygen is given off (c) Electrons are entering the material (d) Hydrogen is evolved 11. MEM’s are also known as: (a) Moisture Enriched Materials (b) Metal Eating Microbes (c) Maximum Evolved Moistures (d) Material Electron Mobility 12. When checking surface profile using X-Course replica tape: (a) 50 micron must be added to the final reading (b) The average number of readings must be taken (c) 50 microns must be deducted from the reading (d) A minimum of ten readings must be taken 13. Which of the following is not a sub atomic particle? (a) Proton (b) Neutron (c) Micron (d) Electron 14. Three factors which can affect the rate of corrosion are: (a) Temperature, Time, and Coating system (b) Bi-metallic contact, Hygroscopic Salts, and Bacteria (c) Coating system, Pipe diameter, and Ultra Violet light (d) Blasting Grades, Rust Grades, and Surface Profile 15. How many Abrasive Blast Cleaning photographs are in BS 7079 part A? (a) 4 (b) 14 (c) 8 (d) 16 16. The thickness of Millscale is approximately: (a) 25 μm to 100 μm (b) 100 to 150 μm (c) zero (d) Dependant upon the material thickness 17. The three compressed oxides which form Millscale are: (a) Iron oxide, Rust, and Iron sulphate (b) Wustite, Haematite, and Magnetite (c) Iron Sulphate, Iron Chloride, and Iron Phosphate (d) RSC, RSJ, and RSA apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 39 of 56
BGAS PRACTICE QUESTION & ANSWER
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18. When preparing stainless steel, what abrasive should be used? (a) Copper Slag (b) Steel Shot (c) Aluminium Oxide (d) Angular Chilled Iron 19. A Banana gauge works on which principle (a) Magnetic resistance (b) Conductive resistance (c) Tension reluctance (d) Viscosity relativity 20. Rust Grade A can be described as (a) Tightly adhering Millscale, with evident heavy pitting (b) Clean white metal (c) Tightly adhering Millscale, with no apparent corrosion (d) Millscale which has begun to flake, or can be scraped away 21. Which Blasting Grade best describes “Thorough Blast cleaning”? (a) Sa 2 (b) Sa 2½ (c) Sa 3 (d) Sa 1 22. The two factors to consider when inspecting a surface preparation: (a) Degree of cleanliness, and time taken (b) Surface Profile, and material condition (c) Surface Profile and degree of cleanliness (d) Degree of cleanliness, and surface contamination 23. Abrasive used on site for British Gas projects must be: (a) Mixed with sand, to reduce cost (b) Stored correctly prior to use (c) Expendable (d) Used up to a maximum of three times only. 24. Which two materials are commonly used as sacrificial anodes? (a) Copper and Tungsten (b) Aluminium and Graphite (c) Zinc and Aluminium (d) Lead and Tin 25. Name a sub atomic particle (a) Atom (b) Micron (c) Electron (d) Moron
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BGAS Grade 3/2 Practice Question & Answer | Page 40 of 56
BGAS PRACTICE QUESTION & ANSWER
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CW – 1 Answers 1. 2. 3. 4. 5. 6. 7.
C D C C C A D
8. 9. 10. 11. 12. 13. 14.
B C D B C C B
15. 16. 17. 18. 19. 20. 21.
B A B C A C A
22. 23. 24. 25.
C C C C
CW – 2 Questions Choose the correct answer 1.
Dew Point is defined as: (a) The temperature at which water vapour in the air will condense (b) The temperature at which paint can be applied (c) The temperature of the steel (d) The temperature at which cross linking will commence
2.
What are the 3 basic constituents of paint? (a) Polymers, Epoxy, and Colourant (b) Natural Oils, Dyes, and Hardeners (c) Oil, Colour, and extenders (d) Binder, Solvent, Pigments & Other Additives
3.
Relative Humidity is defined as: (a) The amount of water which is in the air at 25 0C, in seawater. (b) The amount of water present in the air, expressed as a percentage of water that could be in the air at that temperature (c) The temperature at which water vapour will condense (d) Dry Bulb temperature measured against Wet Bulb temperature. 4. The “temperature at which the vapour from a solvent will ignite in the presence of a source of ignition” is: (a) Upper Explosive Limit (b) Dew Point (c) Flash Point (d) Relative Humidity 5.
Viscosity is defined as: (a) A fluid’s resistance to flow (b) A liquid’s thickness (c) The temperature at which a liquid will flow (d) The point at which a liquid becomes solid
6.
HATE is an abbreviation of what? (a) Heat Affected Tension Expansivity (b) Hydrogen Arc Treatment Effect (c) Hydraulic Adhesion Test Equipment (d) Humidity Affected Temperature Evaluation apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 41 of 56
BGAS PRACTICE QUESTION & ANSWER
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7.
When using a Whirling Hygrometer, the wet bulb temperature (a) Should always be read last (b) Will be above the dry bulb temperature (c) Should always be read first (d) Is always the dew point
8. air?
What is the recommended speed at which a Whirling Hygrometer must travel through the (a) (b) (c) (d)
9. out?
4 metres per sec 2mm per second 5 Km / hr 100 metres per minute
What is the specified temperature at which a Flash Point Determination test must be carried (a) (b) (c) (d)
200C Up to 450 0C There is no specific temperature 25 0C in seawater
10.
What are the 3 attributes, which make up the colour of a paint? (a) White, Black, and Colour (b) Hue, Brightness and Saturation (c) Red, Yellow, and Blue (d) Contrast, Density, and Definition
11.
What diameter is the conical mandrel, which is used in the flexibility test? (a) 8 mm to 25 mm (b) 12mm to 18mm (c) 5mm to 50mm (d) 3mm to 37mm
12.
Which of the following is not a drying test: (a) Ballotini test (b) Beck-Koller Stylus test (c) Wolff-Wilborn test (d) Cross hatch test
13.
RAQ is an abbreviation of what? (a) Required Adherence Quota (b) Repair Area Qualification (c) Required Air Quantity (d) Required Acceptance Quality
14.
Which of the following is not another name for the Density Cup? (a) Pyknometer (b) Psychrometer (c) Weight per gallon cup (d) Weight per litre cup
15.
Which product should be used on damp or moist surfaces? (a) Water borne acrylic (b) Thermally Sprayed Aluminium apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 42 of 56
BGAS PRACTICE QUESTION & ANSWER (c) (d)
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Moisture Curing Polyurethane Micaceous Iron oxide
16.
What type of equipment is used to produce mastics, putties, and fillers? (a) Sand mill (b) Triple Roll mill (c) Colloid mill (d) Attritor mill
17.
What WFT should be measured, if a coating of 88 um DFT is required with a 66% VS paint? (a) 158 μm (b) 75 μm (c) 58 μm (d) 133 μm
18.
Which drying test involves the use of small glass beads? (a) Wolf wilborne (b) Ballotini (c) Koenig Albert (d) Beck Koller
19.
Which of the following is not an adhesion test? (a) Cross Hatch (b) Gold Leaf (c) HATE (d) Dolly test
20.
What factors affect Gloss? (a) Resin type, Solvent type, paint application technique (b) Refractive index, pigment colour, DFT (c) Pigment size, CPVC, resin type, angle of light incidence (d) Pigment size, resin type, Paint colour
21.
What is the main working constituent of a mordant primer? (a) Chromic acid (b) Phosphoric acid (c) Sulphuric acid (d) Poly Vinyl Butirol
22.
What would be the main problem of a low CPVC? (a) High opacity (b) Permeability (c) Low Gloss (d) Low opacity
23.
What is the name of the equipment used to determine Fineness of Grind? (a) Beck-koller (b) Hegman gauge (c) Wolfe-Wilborne (d) Krebs-Stormer
24.
The main difference between Airless and conventional spray is: (a) Conventional spray gives better deposition rate apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 43 of 56
BGAS PRACTICE QUESTION & ANSWER (b) (c) (d) 25.
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conventional spray gives less waste Airless spray gives better quality finish Conventional spray gives better atomisation
The viscosity of water is said to be approximately: (a) 1 g/cc (b) 1 poise (c) 1 stoke (d) 1 centi-poise
CW – 2 Answers 1 2 3 4 5 6 7 8 9 10 11 12 13
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A D B C A C C A C B D D C
14 15 16 17 18 19 20 21 22 23 24 25 26
B C B D B B C B D B D D
BGAS Grade 3/2 Practice Question & Answer | Page 44 of 56
BGAS PRACTICE QUESTION & ANSWER
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PAINTING INSPECTION GRADE‐2 P‐1 Q1
A 'Compliant' coating is one that complies with the requirements of: A. The Health and Safety at Work Act B. The COSHH Regulations C. The Contract Requirements D. The Environmental Protection Act
Q2
When measuring: acidity and alkalinity, distilled water has a pH value of: A. 1
Q3
B) 3.5 to 4.5
B) BS 5493
C) BS 3900
B) 124.40 litres
C) 214.34 litres
D)
An additive that gives a paint material its ‘opacity’ is: A. A plasticizer
Q7
B) Costs can be kept down D) All of the above
What is the volume of paint required to cover a circular area of 15 metres radius if the material has a specified" WFT of 176um? A. 76.38 litres 312.56 litres+
Q6
D) BS 6072
Most tips used on airless spray equipment are “Reversible”, that is so that: A. Tip Life is prolonged C) Blockages can be cleaned
Q5
D) 7.5 to 8.5
Paint Systems: Properties and Performance Requirements, as detailed in PA9, paint testing is mostly carried out according to which British Standard? A. BS 729
Q4
C) 7
B) A thixotrope
C) A stabilizer D) A pigment
Which of the following is considered to be a “Laminar Pigment”? A. Mica
B) Coal tar
C) Zinc chromate
D) Red lead
Q8 Dew point is defined as: ‘the temperature at which the water vapour present in the Air …………..’ A) Will evaporate blisters Q9
C) Will dry
D) Will cause osmotic
As defined by National Grid / Transco, the "Engineer" is the person on site who is: A. B. C. D.
Q10
B) Will condense
Appointed by a contractor and notified in writing to a client Appointed by a client and notified to a contractor Responsible for compiling site records Delegates the compilation of site records to a contractor
which of the following substrates are not dealt with in table SPA6 of PA10? A. B. C. D.
Concrete Stainless steel Galvanised surfaces They are all dealt with under that section apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 45 of 56
BGAS PRACTICE QUESTION & ANSWER Q11
During the corrosion reaction, the cathode primarily contains: A. B. C. D.
Q12
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Negative iron ions, dissociated from the electrolyte Positive iron protons, dissociated from the electrolyte Positive electrons, dissociated from the electrolyte Negative protons, dissociated from the electrolyte
Rust inhibitive primers operate by: A. Oxidation to protect the substrateB) Pigmentation C) Passivation D) Direct encapsulation
Q13
The correct voltage setting for a wet sponge detector over a coating with a DFT of 265um is: A. 9 volts
Q14
B) 67.5volts
C) 90 volts
D) 125 volts
A newly galvanised substrate has a surface: A. Where a cohesive oxide layer has not been formed, and which exhibits a dull appearance lacking in metallic sheen B. On which a cohesive oxide layer has been formed and which exhibits a dull appearance lacking in metallic sheen C. Where a cohesive oxide layer has not been formed, showing a bright metallic sheen D. Where a cohesive oxide layer has been formed, showing a bright metallic sheen
Q15
What are the total paint system DFT requirements for the 2 preferred systems in table SPA le of PA10: A. 255 and 225 microns C) 265 and 225 microns
Q16
Which British standard covers the colour coding of pipe work? A. BS 5493
Q17
B) BS1710
‘Aerobic conditions’ would refer to the highest proportion of which of the following? C) Nitrogen
D) Water
Which of the following is NOT an example of a direct charge mill? A. A single roll mill C) An attritor mill
Q20
D) BS 3900
They should be cured by a chemical reaction The coating must be immediately heated to 340°C They should be sealed with Polysiloxane inorganic coating They must he farther protected by the application of silicone sealer
A. Hydrogen B) Oxygen Q19
C) BS 6072
In accordance with PA 10 table SPA 3c, where T.S.A or I.Z.S have been used as the preferred coating for surfaces operating above 340OC: A. B. C. D.
Q18
B) 265 and 235 microns D) 255 and 235 microns
B) A ball mill D) A high speed disperser
A test that uses glass beads to confirm the drying time of paint, is called: A. The Gold Leaf test C) The Ballotini test
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B) The Stylus test D) The Cryptometer test
BGAS Grade 3/2 Practice Question & Answer | Page 46 of 56
BGAS PRACTICE QUESTION & ANSWER
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PAINTING INSPECTION – GRADE – 2 P‐2 Q1
‘Wet Abrasive’ blast cleaning of a surface should be followed by ‘Dry’ abrasive blast cleaning: A. B. C. D.
Q2
Only as directed by the engineer To remove the surface profile created by the wet process Because the immediate oxidation of the substrate after wet blasting must be removed Does not need to be carried out if water sensitive paint systems are used
How is the "Brightness'' of a colour identified in BS 4800? A. By numbers 0-24
Q3
B) By numbers 01-56 C)
By letters A-E D) By letters E-M
The relevant paint application information for any particular paint product, such as paint spray tip sizes, pressure recommendations etc. are generally found: A. On the paint containers B. On the product data sheet
Q4
B) In the project specification D) In the British Standards
The most common type of thermally sprayed material for hot duty applications is: A. Zinc
Q5
B) Graphite
C) Silicon
D) Aluminium
All mechanical damage, such as surface laminations and sharp edges, observed on a substrate should be: A. B. C. D.
Q6
Immediately removed by careful grinding Carefully removed by means of ‘spark-free’ power brushes Reported to the site engineer, for his assessment They will be normally be removed during the blasting operations Where defect removal has been carried out, the areas concerned shall be: A) Sprayed
Q7
B) Re-blasted
C) Separately primed D) Brush painted
Dry film thickness assessment of a paint film containing M.I.O can be carried out:
A.
Using a Tinsley Pencil film thickness gauge eccentric wheel C) By readings taken using the Paint Inspections Gauge gauge Q8
B) By use of a calibrated D) By using a banana
In accordance with PA 10 section 32, paint application by roller, is: A) Not allowed B) Highly desirable for large areas C) Only to be used for primer coats on blast cleaned surfaces D) Not recommended
Q9
An anode becomes positively charged by: A) C)
Q10
Releasing protons to the cathode Receiving atoms from the cathode
B) Releasing electrons to the cathode D) None of the above+
In the Galvanic List, which of the following materials has the highest known average potential value? apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 47 of 56
BGAS PRACTICE QUESTION & ANSWER A) Millscale B) Copper Q11
C) Zinc
apiXams
D) Graphite
The use of a sealer to improve performance and prolong the coating Life, is associated with which of the following coating systems? A) Polysiloxane C) Thermal metal spraying
B) Polyurethane D) Electrostatic spraying
Q12
Enclosed blasting chambers are used because: A) They protect other people and equipment from blast scatter B) They are cheap to set up C) They provide an adequate surface profile D) They normally use expendable abrasives
Q13
Which additive in paint helps to prevent film cracking in use? A) A plasticizer B) A thixotrope C) A stabilizer D) An extender Which paint constituent can be found in powder form? A) The binder B) The driers C) The solvent D) The anti skinning agent
Q14
Q15
Which of the following is NOT considered as a “Laminar Pigment”? A) Graphite B) Coal tar C) MICA D) M.I.O
Q16
A paint said to have ‘good opacity’ will: A) Have low permeability C) Have a low CPVC
Q17
B) Have good hiding power D) Have a low minimum gloss value
A device used to measure the degree of dispersion of paint is called: A) A glossmeter B) A cryptometer C) A paint inspectors gauge D) A Hegman grind gauge
Q18 A. B. C. D. Q19
A ‘Wheelabrator’ is: A portable item of blasting equipment used on site Used during the manufacture of paint Is an enclosed, centrifugal blasting chamber A measurement of paint viscosity Bi metallic corrosion causes: A. B. C. D.
Causes a material of a higher nobility to corrode faster Causes a material of a the same nobility to corrode faster Causes a material of a lower nobility to corrode faster Causes a material containing carbon to corrode faster
Q20 What DFT should be achievable if paint with a volume solids content of 54% is applied to WFT of 135um? A) 65um B) 72.9um C) 75um D) 82.9um
apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 48 of 56
BGAS PRACTICE QUESTION & ANSWER
apiXams
PAINTING INSPECTOR GRADE– 2 PAPER‐3 Q1
A surface comparator is used to: A) B) C) D)
Q2
Measure the surface profile of a blast cleaned substrate Compare the cleanliness of a blast cleaned surface Assess the roughness of a blast cleaned profile Record the peak to trough height of a blast cleaned profile
How is the ‘Hue’ of a colour identified in BS 4800? A) By numbers 0-24 B) By numbers 01-56 C) By letters A-E
D) By letters E-M
Q3 Minimum WFT and DFT recommendations for paint application, and advice on the addition of thinners etc., can be found: A) On the lable of the paint containers C) On the manufacturer’s product data sheet Q4
A common system for applying ‘Hot Metal Spray’ coating is: A) B) C) D)
Q5
Conventional spray ‘gravity cup’ A gun containing fuel gas, oxygen and compressed air High pressure airless spray system Plural component pumps and gun
All surface breaking laminations observed on a substrate shall be: A) B) C) D)
Q6
B) In the project specification D) In BS 7079 part A
Reported to the welding inspector immediately Removed by chipping hammer under the supervision of the blasting foreman Removed by grinding with the agreement of the engineer Removed by sharp edged scraper with the permission of the safety manager
Which of the following would NOT be classed as a natural oil? A) Copal
B) Tall
C) Linseed
D) Tung
Q7 Dry film thickness measurement using a banana gauge can be carried out on the following: A) Zinc galvanized surfaces which have been painted B) Painted aluminum substrates C) Any paint containing MIO pigments D) None of the above Q8 For the WFT measurement of a non-ferrous coating on a carbon steel pipe, which of the following methods would be acceptable? A) Banana gauge C) Comb gauge used circumferentially Q9
B) Eccentric wheel used longitudinally C) Eccentric wheel used circumferentially
An anode becomes positively charged by: A) Releasing electrons of the above apiXams
B) Releasing protons C) Releasing charged atoms D) None BGAS Grade 3/2 Practice Question & Answer | Page 49 of 56
BGAS PRACTICE QUESTION & ANSWER
apiXams
Q10 In the Galvanic List, which of the following materials has the ‘lowest known average potential value’? A) Aluminium
B) Copper
C) Zinc
D) Graphite
Q11 The use of a sealer to improve performance and prolong coating life, is associated with which of the following coating systems? A) Polysioxane B) Polyurethane D) Electrostatic spraying Q12
Enclosed blasting chambers are used because: A) B) C) D)
Q13
They protect other personnel and equipment from abrasive blast scatter They are relatively portable and inexpensive to set up They enable working in ‘clean conditions’ They normally use expendable abrasives
Which of the following is added to paint to prevent settlement during storage? A) B) C) D)
Q14
A plasticizer A thixotrope A stabilizer A
Which of the following can be used to measure viscosity? A) A pyknometer A Zahn Cup
Q15
B) An aspirated Psychorometer
B) Mica
B) Have low hiding power D) Have a minimum gloss value
B) A grind gauge
C) A psychrometer
D) A
A Wheelabrator is : A) B) C) D)
Q19
C) Slate Flour D) M.I.O.
The equipment used to measure the hiding ability of paint is called: A) A reflectometer cryptometer
Q18
D)
A paint said to possess low opacity will: A) Have low permeability C) Contain laminar pigments
Q17
C) An ‘Abel’ closed cup
Which of the following is not considered as a ‘Laminar Pigment’? A) Glass flake
Q16
C) Inorganic Zinc Silicate
A portable item of blasting equipment used on site A direct charge mill used during the manufacture of paint A centrifugal blasting unit A rotational viscosity measuring equipment
Bi metallic corrosion: A) B) C) D)
Only occurs when two identical materials are in close promimity Causes accelerated corrosion to the material with the higher nobility Has no significant effect on the rate of corrosion of either material Causes accelerated corrosion of the material with the lower nobility apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 50 of 56
BGAS PRACTICE QUESTION & ANSWER
Q20 tank
apiXams
What volume of 100% VS paint would be required to coat the external shell of a storage (19 metres diameter and height of 8 metres), to a WFT of 175um? A) 52.34 litres
B) 98.59 litres
C) 83.57 litres D) 107.87 litres
PAINTING INSPECTION GRADE‐2 P‐1 Q1
A 'Compliant' coating is one that complies with the requirements of: A. The Health and Safety at Work Act B. The COSHH Regulations C. The Contract Requirements D. The Environmental Protection Act
Q2
When measuring: acidity and alkalinity, distilled water has a pH value of: B. 1
Q3
B) 3.5 to 4.5 C) 7
Paint Systems: Properties and Performance Requirements, as detailed in PA9, paint testing is mostly carried out according to which British Standard? B. BS 729
Q4
B) BS 5493
C) BS 3900
B) 124.40 litres
C) 214.34 litres
D)
An additive that gives a paint material its ‘opacity’ is: B. A plasticizer
Q7
B) Costs can be kept down D) All of the above
What is the volume of paint required to cover a circular area of 15 metres radius if the material has a specified" WFT of 176um? B. 76.38 litres 312.56 litres+
Q6
D) BS 6072
Most tips used on airless spray equipment are “Reversible”, that is so that: B. Tip Life is prolonged C) Blockages can be cleaned
Q5
D) 7.5 to 8.5
B) A thixotrope
C) A stabilizer D) A pigment
Which of the following is considered to be a “Laminar Pigment”? B. Mica
B) Coal tar
C) Zinc chromate
D) Red lead
Q8 Dew point is defined as: ‘the temperature at which the water vapour present in the Air …………..’ B) Will evaporate blisters Q9
B) Will condense
C) Will dry
D) Will cause osmotic
As defined by National Grid / Transco, the "Engineer" is the person on site who is: E. F. G. H.
Appointed by a contractor and notified in writing to a client Appointed by a client and notified to a contractor Responsible for compiling site records Delegates the compilation of site records to a contractor
apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 51 of 56
BGAS PRACTICE QUESTION & ANSWER Q10
which of the following substrates are not dealt with in table SPA6 of PA10? E. F. G. H.
Q11
Concrete Stainless steel Galvanised surfaces They are all dealt with under that section
During the corrosion reaction, the cathode primarily contains: E. F. G. H.
Q12
apiXams
Negative iron ions, dissociated from the electrolyte Positive iron protons, dissociated from the electrolyte Positive electrons, dissociated from the electrolyte Negative protons, dissociated from the electrolyte
Rust inhibitive primers operate by: B. Oxidation to protect the substrate B) Pigmentation C) Passivation D) Direct encapsulation
Q13 The correct voltage setting for a wet sponge detector over a coating with a DFT of 265um is: B. 9 volts Q14
B) 67.5volts
C) 90 volts
D) 125 volts
A newly galvanised substrate has a surface: E. Where a cohesive oxide layer has not been formed, and which exhibits a dull appearance lacking in metallic sheen F. On which a cohesive oxide layer has been formed and which exhibits a dull appearance lacking in metallic sheen G. Where a cohesive oxide layer has not been formed, showing a bright metallic sheen H. Where a cohesive oxide layer has been formed, showing a bright metallic sheen
Q15
What are the total paint system DFT requirements for the 2 preferred systems in table SPA le of PA10: B. 255 and 225 microns C) 265 and 225 microns
Q16
Which British standard covers the colour coding of pipe work? B. BS 5493
Q17
B) BS1710
D) BS 3900
They should be cured by a chemical reaction The coating must be immediately heated to 340°C They should be sealed with Polysiloxane inorganic coating They must he farther protected by the application of silicone sealer
‘Aerobic conditions’ would refer to the highest proportion of which of the following? B. Hydrogen B) Oxygen
Q19
C) BS 6072
In accordance with PA 10 table SPA 3c, where T.S.A or I.Z.S have been used as the preferred coating for surfaces operating above 340OC: E. F. G. H.
Q18
B) 265 and 235 microns D) 255 and 235 microns
C) Nitrogen
D) Water
Which of the following is NOT an example of a direct charge mill? B. A single roll mill C) An attritor mill apiXams
B) A ball mill D) A high speed disperser BGAS Grade 3/2 Practice Question & Answer | Page 52 of 56
BGAS PRACTICE QUESTION & ANSWER
Q20
apiXams
A test that uses glass beads to confirm the drying time of paint, is called: B. The Gold Leaf test C) The Ballotini test
B) The Stylus test D) The Cryptometer test
PAINTING INSPECTION – GRADE – 2 P‐2 Q1
‘Wet Abrasive’ blast cleaning of a surface should be followed by ‘Dry’ abrasive blast cleaning: E. F. G. H.
Q2
Only as directed by the engineer To remove the surface profile created by the wet process Because the immediate oxidation of the substrate after wet blasting must be removed Does not need to be carried out if water sensitive paint systems are used
How is the "Brightness'' of a colour identified in BS 4800? B. By numbers 0-24 B) By numbers 01-56 C)
Q3
By letters A-E D) By letters E-M
The relevant paint application information for any particular paint product, such as paint spray tip sizes, pressure recommendations etc. are generally found: C. On the paint containers B) In the project specification D. On the product data sheet D) In the British Standards
Q4
The most common type of thermally sprayed material for hot duty applications is: A. Zinc
Q5
D) Aluminium
Immediately removed by careful grinding Carefully removed by means of ‘spark-free’ power brushes Reported to the site engineer, for his assessment They will be normally be removed during the blasting operations
Where defect removal has been carried out, the areas concerned shall be: A) Sprayed
Q7
C) Silicon
All mechanical damage, such as surface laminations and sharp edges, observed on a substrate should be: E. F. G. H.
Q6
B) Graphite
B) Re-blasted
C) Separately primed D) Brush painted
Dry film thickness assessment of a paint film containing M.I.O can be carried out: B. Using a Tinsley Pencil film thickness gauge eccentric wheel D) By readings taken using the Paint Inspections Gauge gauge
Q8
D) By using a banana
In accordance with PA 10 section 32, paint application by roller, is: B) Not allowed large areas C) Only to be used for primer coats on blast cleaned surfaces recommended
Q9
B) By use of a calibrated
B) Highly desirable for D)
Not
An anode becomes positively charged by: A)
Releasing protons to the cathode apiXams
B) Releasing electrons to the cathode
BGAS Grade 3/2 Practice Question & Answer | Page 53 of 56
BGAS PRACTICE QUESTION & ANSWER C) Q10
Receiving atoms from the cathode
D) None of the above+
In the Galvanic List, which of the following materials has the highest known average potential value? B) Millscale B) Copper
Q11
apiXams
C) Zinc
D) Graphite
The use of a sealer to improve performance and prolong the coating Life, is associated with which of the following coating systems? A) Polysiloxane C) Thermal metal spraying
B) Polyurethane D) Electrostatic spraying
Q12
Enclosed blasting chambers are used because: A) They protect other people and equipment from blast scatter B) They are cheap to set up C) They provide an adequate surface profile D) They normally use expendable abrasives
Q13
Which additive in paint helps to prevent film cracking in use? B) A plasticizer B) A thixotrope C) A stabilizer D) An extender Which paint constituent can be found in powder form? A) The binder B) The driers C) The solvent D) The anti skinning agent
Q14
Q15
Which of the following is NOT considered as a “Laminar Pigment”? A) Graphite B) Coal tar C) MICA D) M.I.O
Q16
A paint said to have ‘good opacity’ will: A) Have low permeability C) Have a low CPVC
Q17
B) Have good hiding power D) Have a low minimum gloss value
A device used to measure the degree of dispersion of paint is called: A) A glossmeter B) A cryptometer C) A paint inspectors gauge D) A Hegman grind gauge
Q18
A ‘Wheelabrator’ is: E. F. G. H.
Q19
Bi metallic corrosion causes: E. F. G. H.
Q20 to
A portable item of blasting equipment used on site Used during the manufacture of paint Is an enclosed, centrifugal blasting chamber A measurement of paint viscosity
Causes a material of a higher nobility to corrode faster Causes a material of a the same nobility to corrode faster Causes a material of a lower nobility to corrode faster Causes a material containing carbon to corrode faster
What DFT should be achievable if paint with a volume solids content of 54% is applied WFT of 135um? A) 65um B) 72.9um C) 75um D) 82.9um apiXams
BGAS Grade 3/2 Practice Question & Answer | Page 54 of 56
BGAS PRACTICE QUESTION & ANSWER
apiXams
PAINTING INSPECTOR GRADE– 2 PAPER‐3 Q1
A surface comparator is used to: E) F) G) H)
Q2
Measure the surface profile of a blast cleaned substrate Compare the cleanliness of a blast cleaned surface Assess the roughness of a blast cleaned profile Record the peak to trough height of a blast cleaned profile
How is the ‘Hue’ of a colour identified in BS 4800? B) By numbers 0-24 B) By numbers 01-56 C) By letters A-E M
D) By letters E-
Q3 Minimum WFT and DFT recommendations for paint application, and advice on the addition of thinners etc., can be found: A) On the lable of the paint containers C) On the manufacturer’s product data sheet Q4
A common system for applying ‘Hot Metal Spray’ coating is: E) F) G) H)
Q5
Conventional spray ‘gravity cup’ A gun containing fuel gas, oxygen and compressed air High pressure airless spray system Plural component pumps and gun
All surface breaking laminations observed on a substrate shall be: E) F) G) H)
Q6
B) In the project specification D) In BS 7079 part A
Reported to the welding inspector immediately Removed by chipping hammer under the supervision of the blasting foreman Removed by grinding with the agreement of the engineer Removed by sharp edged scraper with the permission of the safety manager
Which of the following would NOT be classed as a natural oil? B) Copal
B) Tall
C) Linseed
D) Tung
Q7 Dry film thickness measurement using a banana gauge can be carried out on the following: E) Zinc galvanized surfaces which have been painted F) Painted aluminum substrates G) Any paint containing MIO pigments H) None of the above Q8 the
For the WFT measurement of a non-ferrous coating on a carbon steel pipe, which of following methods would be acceptable? A) Banana gauge C) Comb gauge used circumferentially
Q9
B) Eccentric wheel used longitudinally C) Eccentric wheel used circumferentially
An anode becomes positively charged by: B) Releasing electrons of the above apiXams
B) Releasing protons C) Releasing charged atoms D) None BGAS Grade 3/2 Practice Question & Answer | Page 55 of 56
BGAS PRACTICE QUESTION & ANSWER
apiXams
Q10 In the Galvanic List, which of the following materials has the ‘lowest known average potential value’? B) Aluminium
B) Copper
C) Zinc
D) Graphite
Q11 The use of a sealer to improve performance and prolong coating life, is associated with which of the following coating systems? B) Polysioxane B) Polyurethane C) Inorganic Zinc Silicate D) Electrostatic spraying Q12
Enclosed blasting chambers are used because: E) F) G) H)
Q13
Which of the following is added to paint to prevent settlement during storage? E) F) G) H)
Q14
They protect other personnel and equipment from abrasive blast scatter They are relatively portable and inexpensive to set up They enable working in ‘clean conditions’ They normally use expendable abrasives
A plasticizer A thixotrope A stabilizer A
Which of the following can be used to measure viscosity? B) A pyknometer B) An aspirated Psychorometer C) An ‘Abel’ closed cup D) A Zahn Cup
Q15
Which of the following is not considered as a ‘Laminar Pigment’? B) Glass flake
Q16
B) Mica
A paint said to possess low opacity will: B) Have low permeability C) Contain laminar pigments
Q17
B) A grind gauge
C) A psychrometer
D) A cryptometer
A Wheelabrator is : E) F) G) H)
Q19
B) Have low hiding power D) Have a minimum gloss value
The equipment used to measure the hiding ability of paint is called: B) A reflectometer
Q18
C) Slate Flour D) M.I.O.
A portable item of blasting equipment used on site A direct charge mill used during the manufacture of paint A centrifugal blasting unit A rotational viscosity measuring equipment
Bi metallic corrosion: E) F) G) H)
Only occurs when two identical materials are in close promimity Causes accelerated corrosion to the material with the higher nobility Has no significant effect on the rate of corrosion of either material Causes accelerated corrosion of the material with the lower nobility
Q20 What volume of 100% VS paint would be required to coat the external shell of a storage tank (19 metres diameter and height of 8 metres), to a WFT of 175um? B) 52.34 litres apiXams
B) 98.59 litres
C) 83.57 litres D) 107.87 litres
BGAS Grade 3/2 Practice Question & Answer | Page 56 of 56
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