Painting Contractor License Practice
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2025
Q&A | Instant Download Pdf
1. What is the primary purpose of applying primer before painting?
A. To add color
B. To seal the surface and improve paint adhesion
C. To reduce drying time
D. To increase gloss
Primer improves adhesion and provides a uniform surface for topcoats,
especially on porous or bare materials.
2. What is the recommended moisture content of wood before painting?
A. 20%
B. 18%
C. 15% or less
D. 25%
Excess moisture can cause peeling, blistering, or improper paint adhesion.
Wood should be properly dried.
3. Which of the following is used to measure the thickness of a paint film?
A. Tape measure
B. Wet film thickness gauge
,C. T-square
D. Moisture meter
A wet film thickness gauge ensures the correct paint coverage according to
manufacturer specs.
4. Which type of paint is best suited for high-moisture areas like
bathrooms?
A. Flat latex
B. Semi-gloss latex
C. Alkyd flat
D. Eggshell acrylic
Semi-gloss latex resists moisture and is easier to clean, making it ideal for
humid environments.
5. When sanding lead-based paint, what is the appropriate safety practice?
A. Use a fan
B. Dry-sand the surface
C. Use wet sanding methods or HEPA-filter tools
D. No precautions needed
Lead paint is hazardous; proper containment and tools like HEPA vacuums
prevent toxic dust exposure.
6. Which of the following is NOT a common paint failure?
A. Peeling
B. Blistering
C. Milling
D. Alligatoring
Milling refers to grinding; it is not a type of paint failure.
7. Which type of roller cover is best for smooth surfaces?
A. 3/4-inch nap
B. 1/4-inch nap
C. 1-1/2 inch nap
, D. Foam sponge only
Shorter nap covers provide a smoother finish on flat surfaces.
8. Alkyd paint is based on which solvent?
A. Water
B. Mineral spirits
C. Alcohol
D. Acetone
Alkyd paints are oil-based and use solvents like mineral spirits for thinning
and cleaning.
9. What is back-rolling?
A. Rolling paint from bottom to top
B. Rolling over sprayed areas to improve penetration
C. Applying primer after paint
D. Removing wet paint with a roller
Back-rolling helps with paint penetration and texture on porous surfaces like
stucco or drywall.
10. OSHA requires fall protection for painters working at what height or
higher?
A. 4 feet
B. 6 feet
C. 8 feet
D. 10 feet
OSHA mandates fall protection at 6 feet or more in construction
environments.
11. Which surface prep technique removes loose paint, rust, and mill
scale?
A. Scraping
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2025
Q&A | Instant Download Pdf
1. What is the primary purpose of applying primer before painting?
A. To add color
B. To seal the surface and improve paint adhesion
C. To reduce drying time
D. To increase gloss
Primer improves adhesion and provides a uniform surface for topcoats,
especially on porous or bare materials.
2. What is the recommended moisture content of wood before painting?
A. 20%
B. 18%
C. 15% or less
D. 25%
Excess moisture can cause peeling, blistering, or improper paint adhesion.
Wood should be properly dried.
3. Which of the following is used to measure the thickness of a paint film?
A. Tape measure
B. Wet film thickness gauge
,C. T-square
D. Moisture meter
A wet film thickness gauge ensures the correct paint coverage according to
manufacturer specs.
4. Which type of paint is best suited for high-moisture areas like
bathrooms?
A. Flat latex
B. Semi-gloss latex
C. Alkyd flat
D. Eggshell acrylic
Semi-gloss latex resists moisture and is easier to clean, making it ideal for
humid environments.
5. When sanding lead-based paint, what is the appropriate safety practice?
A. Use a fan
B. Dry-sand the surface
C. Use wet sanding methods or HEPA-filter tools
D. No precautions needed
Lead paint is hazardous; proper containment and tools like HEPA vacuums
prevent toxic dust exposure.
6. Which of the following is NOT a common paint failure?
A. Peeling
B. Blistering
C. Milling
D. Alligatoring
Milling refers to grinding; it is not a type of paint failure.
7. Which type of roller cover is best for smooth surfaces?
A. 3/4-inch nap
B. 1/4-inch nap
C. 1-1/2 inch nap
, D. Foam sponge only
Shorter nap covers provide a smoother finish on flat surfaces.
8. Alkyd paint is based on which solvent?
A. Water
B. Mineral spirits
C. Alcohol
D. Acetone
Alkyd paints are oil-based and use solvents like mineral spirits for thinning
and cleaning.
9. What is back-rolling?
A. Rolling paint from bottom to top
B. Rolling over sprayed areas to improve penetration
C. Applying primer after paint
D. Removing wet paint with a roller
Back-rolling helps with paint penetration and texture on porous surfaces like
stucco or drywall.
10. OSHA requires fall protection for painters working at what height or
higher?
A. 4 feet
B. 6 feet
C. 8 feet
D. 10 feet
OSHA mandates fall protection at 6 feet or more in construction
environments.
11. Which surface prep technique removes loose paint, rust, and mill
scale?
A. Scraping
