PPRC's Coatings Quiz
Multiple Choice

1. Why is transfer efficiency important?
High transfer efficiency means less paint/powder needs to be sprayed to coat the part
Painters can take more breaks because they are painting parts faster
The less the company spends on paint, the more the CEO gets in bonuses
cheat!

2. Studies have shown that by changing spray technique, a painter can reduce material consumption by:
5-10%
10-15%
20-30%
cheat!

3. You buy your paint in 55 gallon drums and the paint costs $30/gallon. If your painter applies paint at an efficiency of 30%, how many gallons of paint and how much money is wasted after finishing a 55 gallon drum?
24 gallons, $720
16 gallons, $480
38.5 gallons, $1,155
cheat!

4. What happens to the wasted paint?
It goes home with the painter to paint the living room
Your vendor collects it and then resells it to you
It ends up as overspray waste and excessive air emissions
cheat!

5. The Spray Operatorís efficiency is a function of
technique and gun setup
sufficient coffee and donuts
percentage of parts coated on Monday mornings and Friday afternoons
cheat!

6. Electrostatic spray equipment tends to reduce the amount of paint or powder needed to cover a part because:
the paint particles are shocked into submission and will consequently behave better
there is a tendency for paint/powder particles to coat a surface of the part that is not in direct line-of-sight with the applicator.
spray guns are operated by precisely tuned electric motors
cheat!

7. Electrostatics improve paint transfer efficiency by:
10-15%
20-40%
80%+
cheat!

8. Which is not an environmental benefit of heating your paint application system:
Viscosity (a measure of a liquidís resistance to flow) can be reduced without adding solvent.
Paint can be sprayed at lower fluid pressures (lower pressure = lower velocity = better transfer efficiency)
Painters can use the warm paint to reheat their coffee
cheat!

9. HVLP means
High Viscosity Lousy Performance
He Vows to Learn to Paint
High Volume Low Pressure
cheat!

10. To ensure electrostatic equipment performs at optimum efficiency, a good ground to the part must be achieved. To get the most effective ground what type of hooks/hangers should you use?
metal round stock hanger with a broad hanging point
metal square stock hanger with a sharp hanging point
10 pound test fishing line with a "Primo Chugger" 4-1/2" surface floater/diver hook lure.
cheat!

11. Which method of cleaning paint lines and application equipment will use the least amount of solvent?
Forget it, the equipment will just get dirty again tomorrow
Flush the lines with a blend of virgin solvent and "dirty" solvent
Use a "Solvent Saver" which forces a turbulent blend of solvent and compressed air through the paint hose
cheat!

12. Why is paint booth lighting important in preventing waste?
Poor lighting may cause a technician to spray more than what is needed to ensure complete coverage
Bright lights keep night shift workers from falling asleep
The light helps the paint cure properly
cheat!

Enhanced True/False

13. If you arc or swing the spray gun 45 degrees from the work surface, up to 65% of the sprayed material may be wasted.
true
false
before or after Happy Hour?
cheat!

14. Triggering (activation and deactivation of paint delivery from the spray gun) the spray gun at the beginning and end of each stroke will reduce overspray, increase transfer efficiency and reduce material consumption.
true
false
only on Friday the 13th
cheat!

15. It is estimated that 35-45% of a paint particleís total solvent loss occurs between the gun and the target
true
false
is this in the Federal Register?
cheat!

16. Measuring the viscosity of a coating material before you paint is really not important. You should just dump in the same amount of thinner as you always do.
true
false
címon, Picasso never measured his paintís viscosity
cheat!

17. You should inspect, clean and maintain application equipment regularly to ensure optimum performance.
true
false
not until EPA promulgates a new rule
cheat!

Score =

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Pacific Northwest Pollution Prevention Resource Center, 513 First Ave. West, Seattle, WA 98119, U.S.A.
phone: 206-352-2050, fax: 206-352-2049, e-mail: office@pprc.org, WWW address: http://www.pprc.org/pprc/


© 1999, Pacific Northwest Pollution Prevention Resource Center
phone: 206-352-2050, e-mail: office@pprc.org, web: www.pprc.org