Contractor exam C-33 trade UPDATED
Exam Questions and CORRECT Answers
If a spot of latex paint on wood remove it by - CORRECT ANSWER- Scraping with a knife
When working with a new wood, fill nails holes cracks and small holes - CORRECT
ANSWER- After priming
Natural shellac is derived from secretions of - CORRECT ANSWER- Lac insects
The proper way to treat stains caused by rusted nail heads is to - CORRECT ANSWER-
Sand, countersink nail, prime , fill and finish with two coats
The liquid portion of paint is called - CORRECT ANSWER- The vehicle
How should you clean a greasy kitchen wall prior to painting - CORRECT ANSWER- With
trisodium phosphate
Which is the preferred primer for knots in wood - CORRECT ANSWER- Shellac
Best undercoat for new wood casing is - CORRECT ANSWER- Enamel
In general painting over wet surface will result in - CORRECT ANSWER- Blistering
When should you apply a seaming roller - CORRECT ANSWER- Immediately
Which improves the opacity of paint - CORRECT ANSWER- Binder
A scale 1/4" refers to - CORRECT ANSWER- 4'=1"
, What flame spread classification is acceptable for a residential exit corridor - CORRECT
ANSWER- Class iii
Which is best material to coat a wood deck - CORRECT ANSWER- Spar varnish
What will most Likely happen if a back in a stucco wall is filled with silicone caulk -
CORRECT ANSWER- The paint will not cover
What is best material to fill in a crack in an interior wall - CORRECT ANSWER- Sparkle
Where is efflorescence found - CORRECT ANSWER- Concrete and masonry surface
Which of the following will give you the smoothest finish when painting a door with latex
paint - CORRECT ANSWER- A sprayer
How long should you wait before painting after applying gypsum veneer plaster - CORRECT
ANSWER- 4 weeks
Which of the following components of paint affects the adhesions of the surface - CORRECT
ANSWER- Binder
When painting a window with a wood sash how far from the sash should the tape be placed -
CORRECT ANSWER- 1/4"
Why is breathable paint useful for exteriors - CORRECT ANSWER- It won't blister
ALUMINUM preperation - CORRECT ANSWER- remove corrosion with wire brush
remove oil and grease with solvents or steam etch unweathered aluminum with 10 %
phosphoric acid and rinse prime with zinc chromate
SURFACE PREPARATION BRICK - CORRECT ANSWER- e remove dirt, excess mortar,
efflorescence, etc. by brush, air, or e weather for one month before finishing with latex e can
be sealed with a latex primer-sealer, a clear resin, or a clear silicone water repellant
Exam Questions and CORRECT Answers
If a spot of latex paint on wood remove it by - CORRECT ANSWER- Scraping with a knife
When working with a new wood, fill nails holes cracks and small holes - CORRECT
ANSWER- After priming
Natural shellac is derived from secretions of - CORRECT ANSWER- Lac insects
The proper way to treat stains caused by rusted nail heads is to - CORRECT ANSWER-
Sand, countersink nail, prime , fill and finish with two coats
The liquid portion of paint is called - CORRECT ANSWER- The vehicle
How should you clean a greasy kitchen wall prior to painting - CORRECT ANSWER- With
trisodium phosphate
Which is the preferred primer for knots in wood - CORRECT ANSWER- Shellac
Best undercoat for new wood casing is - CORRECT ANSWER- Enamel
In general painting over wet surface will result in - CORRECT ANSWER- Blistering
When should you apply a seaming roller - CORRECT ANSWER- Immediately
Which improves the opacity of paint - CORRECT ANSWER- Binder
A scale 1/4" refers to - CORRECT ANSWER- 4'=1"
, What flame spread classification is acceptable for a residential exit corridor - CORRECT
ANSWER- Class iii
Which is best material to coat a wood deck - CORRECT ANSWER- Spar varnish
What will most Likely happen if a back in a stucco wall is filled with silicone caulk -
CORRECT ANSWER- The paint will not cover
What is best material to fill in a crack in an interior wall - CORRECT ANSWER- Sparkle
Where is efflorescence found - CORRECT ANSWER- Concrete and masonry surface
Which of the following will give you the smoothest finish when painting a door with latex
paint - CORRECT ANSWER- A sprayer
How long should you wait before painting after applying gypsum veneer plaster - CORRECT
ANSWER- 4 weeks
Which of the following components of paint affects the adhesions of the surface - CORRECT
ANSWER- Binder
When painting a window with a wood sash how far from the sash should the tape be placed -
CORRECT ANSWER- 1/4"
Why is breathable paint useful for exteriors - CORRECT ANSWER- It won't blister
ALUMINUM preperation - CORRECT ANSWER- remove corrosion with wire brush
remove oil and grease with solvents or steam etch unweathered aluminum with 10 %
phosphoric acid and rinse prime with zinc chromate
SURFACE PREPARATION BRICK - CORRECT ANSWER- e remove dirt, excess mortar,
efflorescence, etc. by brush, air, or e weather for one month before finishing with latex e can
be sealed with a latex primer-sealer, a clear resin, or a clear silicone water repellant
