C33 Wallcovering Installation and Preparation 5

Question 1

When a wallcovering strip begins to slide or slip after being hung, the most likely cause is:

Accepted Answer

Too much paste was applied or the paste is too thin

Answer

Slipping or sliding strips typically result from paste that is too wet, too thin, or applied too heavily, reducing friction on the wall.

Question 2

What is the purpose of applying a primer-sealer to new drywall before hanging wallcovering?

Accepted Answer

To prevent the drywall paper from tearing when wallcovering is removed in the future

Answer

A primer-sealer on new drywall prevents the facing paper from bonding directly to the drywall, allowing future removal without damaging the substrate.

Question 3

Which of the following wallcovering patterns requires the most material due to waste during pattern matching?

Accepted Answer

Drop match with a large repeat

Answer

Drop match patterns with large repeats generate the most waste because each strip must be offset by half the repeat, requiring significantly more material.

Question 4

When hanging wallcovering on a wall with an out-of-plumb corner, the best practice is to:

Accepted Answer

Plumb each new wall section independently from the corner

Answer

Because corners are rarely perfectly plumb, a new plumb line should be established on each wall section after turning the corner.

Question 5

What is the correct way to clean paste off the face of vinyl wallcovering during installation?

Accepted Answer

Wipe with a clean damp sponge, rinsing frequently

Answer

A clean, damp sponge rinsed frequently removes paste from vinyl faces without smearing or leaving residue.

C33 - C-33 California Painting Contractor License Practice Test

C33 - C-33 California Painting Contractor License Practice Test

C33 Wallcovering Installation and Preparation 5