ASE Practice Test (B2: Painting & Refinishing)

Question 1

Fish-eye defects are appearing in a freshly sprayed basecoat. The MOST likely cause is:

Accepted Answer

Silicone or oil contamination on the surface

Answer

Too much reducer in the paint mixture

Answer

Spraying in temperatures below 60°F (15°C)

Answer

Excessive air pressure at the gun

Question 2

A technician is mixing a two-stage urethane clearcoat. The manufacturer's ratio is 4:1:1 (clear:hardener:reducer). If 16 oz of clearcoat is used, how much hardener is needed?

Accepted Answer

4 oz

Answer

2 oz

Answer

8 oz

Answer

16 oz

Question 3

When color sanding a clearcoat, the technician notices sand scratches remain visible after polishing. The MOST likely cause is:

Accepted Answer

Starting with sandpaper that is too coarse

Answer

Using too fine a polishing compound

Answer

Insufficient film thickness of the clearcoat

Answer

Using a DA polisher at too low a speed

Question 4

A vehicle is being spot-repaired. The technician must blend the new color into the adjacent panels. The PRIMARY reason for blending is:

Accepted Answer

To compensate for metamerism and color shift with age

Answer

To avoid runs and sags in the new paint

Answer

To reduce the amount of paint used in the repair

Answer

To eliminate the need for a clearcoat topcoat

Question 5

Which respirator type provides the BEST protection when spraying isocyanate-based (urethane) paints?

Accepted Answer

Supplied-air respirator (SAR) or PAPR with combination cartridges

Answer

Dust/particulate mask rated N95

Answer

Half-mask respirator with organic vapor cartridges only

Answer

Half-mask with P100 particulate filters only

Question 6

A technician notices orange peel texture in a cured clearcoat. Technician A says this can be corrected by wet sanding and polishing. Technician B says orange peel is caused by excessive flash time between coats. Who is correct?

Accepted Answer

Technician A only

Answer

Technician B only

Answer

Both Technician A and Technician B

Answer

Neither Technician A nor Technician B