CAADE Repair and Refinishing Processes 2

Question 1

Which welding process is most commonly recommended for joining high-strength steel (HSS) panels in modern vehicle repair?

Accepted Answer

MIG (GMAW) welding

Answer

Oxy-acetylene welding

Answer

TIG (GTAW) welding

Answer

Spot welding with indirect current

Question 2

When performing a blend repair on a metallic base coat, the blending solvent is applied to:

Accepted Answer

The adjacent panel edge after base coat application

Answer

The repaired panel before base coat application

Answer

The clear coat layer before buffing

Answer

The primer surface before sanding

Question 3

What is the primary purpose of a seam sealer in structural repairs?

Accepted Answer

To prevent corrosion and moisture intrusion at panel joints

Answer

To add decorative trim lines

Answer

To improve paint adhesion on bare metal

Answer

To fill minor surface scratches before priming

Question 4

When estimating the cost of refinishing a door jamb during a full door replacement, the estimator should:

Accepted Answer

Always include jamb refinishing as a separate line item

Answer

Include it only if the customer specifically requests it

Answer

Exclude it as it is always part of the door panel time

Answer

Include it as an included operation with no additional charge

Question 5

Which surface preparation step is critical before applying a two-stage urethane primer-surfacer?

Accepted Answer

Scuffing or sanding to create mechanical adhesion

Answer

Waxing the surface to improve adhesion

Answer

Heating the substrate to 200°F

Answer

Applying a waterborne sealer first

Question 6

Ultra-high-strength steel (UHSS) structural components are typically replaced rather than repaired because:

Accepted Answer

Heat from welding or reshaping destroys their metallurgical properties

Answer

They are too expensive to repair

Answer

Insurance companies will not pay for repairs

Answer

Replacement parts are always cheaper than labor

Question 7

A technician notices fish-eye defects appearing in the freshly sprayed base coat. The most likely cause is:

Accepted Answer

Silicone contamination on the substrate

Answer

Too much reducer in the mix

Answer

Insufficient flash time between coats

Answer

Incorrect gun pressure