Bgas test 2.doc

BGAS PAINTING INSPECTION GRADE II Time 1½ Hrs Tick the correct answer from the choice 1. 1. 2. 3. 4. 2. 1. 2. 3. 4. 3. 1. 2. 3. 4. 4. 1. 2. 3. 4. 5. 1. 2. 3. 4. 6.

How many cleaning grades available by using tools according to BS 7079 14 6 4 16 Example for paint involving barrier principle Zinc rich epoxy Zinc or aluminium Urethane Rust inhibitive primers According to Transco , an Engineer is Appointed by a contractor and notified in writing to client Appointed by Client and notified in writing to contractor Responsible for coating and records Higher authority If 7.5 Liters Paint weighs 9.75 Kg, Relative Density is ______ 13.0 gm/cc 13.0 1.30 gm/cc 1.3 Fineness of grind is a term used for Premixing Aggregate size Profile roughness PVC Very thorough blast cleaning is refers to 1. Sa1 2. Sa2 3. Sa2½ 4. Sa3 7. RAQ is an abbreviation of 1. Required Area Quantity 2. Repaired Area Quality 3. Required Air Quantity 4. Report and Quality Record 8. If Profile thickness is higher than specified ,result will be 1. Rash rusting 2. Cause Paint adhesion 3. Blisters 4. Millscale

9. What result will get by Temperature Cycling test 1. Cracking 2. Blistering 3. Chalking 4. Discoloration 10. Why an inspector use PIG Gauge 1. When substrate is non ferromagnetic and coating is non Ferro magnetic 2. When substrate is non ferromagnetic and coating is Ferro magnetic 3. When substrate is Ferro magnetic and coating is Ferro magnetic 4. When substrate is ferromagnetic and coating is non Ferro magnetic 11. High pressure abrasive blasting operates at which pressure 1. 100 psi 2. 2500 psi 3. 20000 psi 4. 30000 psi 12. Too much binder to solid ratio gives 1. Good Opacity 2. Good Gloss 3. Cohesive Strength 4. Porous Film 13. Specular Hematite is commonly called 1. Millscale 2. Rust 3. MIO 4. Iron Sulphate 14. Which application method provides uniform film thickness 1. Stripe coat 2. Airless Spray 3. Conventional spray 4. Electrostatic spray 15. Which paint is more suitable for hot duty surface above 150 ᵒ C 1. Zinc Silicate 2. High Solid Epoxy 3. Urethane 4. CR 16. Which surface preparation is used for weathered galvanising 1. Sweep Blast 2. Stiff Bristle Brushing 3. Through Blast 4. Sa2½ 17. Amplitude is a term associated with 1. Dry film thickness 2. Wet film thickness 3. Matt Film 4. peak to trough height 18. Which solvent group is suitable for chlorinated rubber paints 1. Xylene

2. Ketones 3. Water 4. White Spirit

19. 1. 2. 3. 4. 20. 1. 2. 3. 4.

Which coating fault will look like discoloration Chalking Bleeding Cissing Curtaining Which one is a direct charge mill Sand Mill Single roll mill Triple roll mill Attritor Mill

Narrative Questions. 1. According to Transco PA 10 , Which paint systems use on hot duty surfaces above 340 oC ?

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2. What are the differences between airless and conventional spray? ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

3. What is mean by bad weather condition in coating? -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------4. Explain the advantages and disadvantages of epoxy paints? -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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5. How much paint required to coat a steel pipe of diameter 3 Meters and a length of 9 meters ,at a Wft of 120 um? -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------6. What information provide in Risk assessment? ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------7. How to use a Pfund crypto meter? -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

-----------------------------------------------------------------------------8. How the coating fault algae / mould growth treated? – ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------9. How to calculate the ‘degree of dispersion’ of paint? -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------10.

What is the difference between convertible and non-convertible coating?

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What are the things to be noted while applying paint ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

12. Which surfaces are named as damp surface? Which paint can be applied on damp surface? How they applied? Why ?

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What is MCL ? Explain MCL Curing Method?

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What information are available in MDS? Explain any three from MDS?

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What should you do, if a contractor applied a coat of paint out of sequence?

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BGAS PAINTING INSPECTION GRADE II 6