BGAS Grade 2

BGAS PAINTING INSPECTION GRADE II

Time 1½ Hrs

Choose the most suitable 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 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 BGAS PAINTING INSPECTION GRADE II

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a. Dry film thickness b. Wet film thickness c.Matt Film 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

Narrative Questions. 1. According to Transco PA 10 , Which paint systems use on hot duty surfaces above 340 oC ? 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? 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? 11.What are the things to be noted while surface preparation and application of paint 12.Which surfaces are named as damp surface? Which paint can be applied on damp surface? How they applied? Why ? 13.What is MCL ? Explain MCL Curing Method? 14.What information are available in MDS? Explain any three from MDS? 15.What should you do, if a contractor applied a coat of paint out of sequence?

MODEL EXAMINATION PREPARED BY:

UK TECHNICAL INSTITUTE ,KOTTAKKAL www.ipcoat.com

BGAS PAINTING INSPECTION GRADE II

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