Contractor Practice Exam |
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Contractor License Exam Prep
Study Guide | Updated 2026
1. What is the primary purpose of primer?
A. To provide the final decorative finish
B. To make paint dry instantly
C. To improve adhesion and provide a uniform surface
D. To eliminate the need for surface preparation
Correct Answer: To improve adhesion and provide a
uniform surface
Rationale: Primer helps seal porous surfaces, improve
adhesion, provide uniform absorption, and create a
suitable base for the finish coat.
2. Which surface condition is most important before
painting?
A. The surface must be glossy
B. The surface must be wet
C. The surface must be clean, dry, sound, and properly
prepared
D. The surface must have old loose paint
Correct Answer: The surface must be clean, dry, sound,
and properly prepared
,Rationale: Paint performance depends heavily on the
condition of the substrate. Dirt, grease, moisture, loose
coatings, and deteriorated material can cause
premature failure.
3. What is the primary purpose of sanding between
coats?
A. To remove all previous coats
B. To make the paint darker
C. To smooth imperfections and improve intercoat
adhesion
D. To increase drying time
Correct Answer: To smooth imperfections and improve
intercoat adhesion
Rationale: Light sanding removes dust nibs, roughness,
and other imperfections while creating a better surface
for the next coat to bond to.
4. Which finish generally has the highest sheen?
A. Flat
B. Eggshell
C. Satin
D. Gloss
Correct Answer: Gloss
Rationale: Gloss coatings reflect more light and
generally provide a harder, more washable surface than
low-sheen finishes.
5. Which finish is commonly selected when a low-
reflective appearance is desired?
A. Gloss
B. Semi-gloss
,C. Satin
D. Flat
Correct Answer: Flat
Rationale: Flat paint has very low sheen and helps hide
minor surface imperfections, making it common on
ceilings and many interior walls.
6. What is the best general practice when painting a
previously painted surface?
A. Always paint directly over it
B. Remove every old coating regardless of condition
C. Evaluate, clean, repair, and properly prepare the
existing coating
D. Apply a heavy coat of finish paint first
Correct Answer: Evaluate, clean, repair, and properly
prepare the existing coating
Rationale: Existing coatings should be inspected for
adhesion, contamination, cracking, peeling, chalking,
and compatibility before recoating.
7. What is the purpose of caulking joints before
painting?
A. To increase paint gloss
B. To thin the paint
C. To seal gaps and provide a finished transition
D. To remove rust
Correct Answer: To seal gaps and provide a finished
transition
Rationale: Paintable caulk is commonly used at
appropriate joints and gaps to improve appearance and
reduce air or moisture infiltration.
, 8. Which tool is best suited for filling small holes and
minor surface imperfections?
A. Paint roller
B. Spray gun
C. Putty knife
D. Paint edger
Correct Answer: Putty knife
Rationale: A putty knife is designed to apply and
smooth patching compounds, spackle, and similar
fillers.
9. What should be done with loose or peeling paint
before repainting?
A. Paint over it with a thick coat
B. Cover it with wallpaper
C. Remove the loose material and properly prepare the
surface
D. Wet it and immediately apply primer
Correct Answer: Remove the loose material and properly
prepare the surface
Rationale: Coating over unstable paint leaves a weak
layer underneath the new coating and can result in
peeling or cracking.
10. Which condition can significantly slow the drying of
water-based paint?
A. Moderate temperature
B. Good air movement
C. High humidity
D. Low film thickness
Correct Answer: High humidity