CSLB C20 TRADE TOUGHER EXAM ACTUAL
TEST PAPER 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◉ Unloaded materials can only stay in the street. Answer: 5 days
◉ What type of equipment is best used for mud. Answer: track dozer
or loader
◉ What is the color of wire going into the ground. Answer: green
◉ What is it called when rocks in an aggregate base have come to the
top with no fines to bind them. Answer: Bony grade
◉ A flagger should stand within ..... of work area with what size flag.
Answer: 100ft and 18 inch flag
◉ Where do you set a string line before paving with asphalt.
Answer: 6 inches offset from centerline of roadway
◉ Where toeboard's are required in a construction site what are the
minimum dimensions. Answer: 4 inches high off the platform with
no more than 1/4 inch gap
,◉ If you were driving nails and find that they have a tendency to
split the boards what alternative type of nail might use to prevent
the splitting. Answer: Either sinker or box nail
◉ Which of the following methods of removing old asphalt
pavement is not correct. Answer: Rip the asphalt before removing
with a paddle wheel scraper
◉ when working with transit you take the height of the instrument
and. Answer: Subtract
◉ After placing a steel pipe pile what do you fill it with. Answer:
Concrete
◉ What kind of pipe needs a tracer. Answer: Plastic gas pipe
◉ When you are paving asphalt road and one pass hell should you
proceed. Answer: Start rolling on low side and progress towards
high side
◉ What should be done to prevent concrete from sticking to steal
forms. Answer: Use form oil
, ◉ When finish grading what is the allowable. Answer: .08'
◉ What do you line an old underground storage tank with. Answer:
Special coating or bladder
◉ On what type of surface should you not use latex paint. Answer:
Smooth gypsum board
◉ A steep near vertical slope along the margin of a landslide.
Answer: Scarp
◉ What is the minimum tolerance that must be maintained for a
concrete slab to be considered very. Answer: 1/8"
◉ The hardest part of working with concrete forms is. Answer:
Locating and placing embedded items
◉ The flanges of the steel T beams should be what width. Answer:
1/2
◉ When asphalt is too cool what does it look like. Answer: Stiff
appearance
TEST PAPER 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◉ Unloaded materials can only stay in the street. Answer: 5 days
◉ What type of equipment is best used for mud. Answer: track dozer
or loader
◉ What is the color of wire going into the ground. Answer: green
◉ What is it called when rocks in an aggregate base have come to the
top with no fines to bind them. Answer: Bony grade
◉ A flagger should stand within ..... of work area with what size flag.
Answer: 100ft and 18 inch flag
◉ Where do you set a string line before paving with asphalt.
Answer: 6 inches offset from centerline of roadway
◉ Where toeboard's are required in a construction site what are the
minimum dimensions. Answer: 4 inches high off the platform with
no more than 1/4 inch gap
,◉ If you were driving nails and find that they have a tendency to
split the boards what alternative type of nail might use to prevent
the splitting. Answer: Either sinker or box nail
◉ Which of the following methods of removing old asphalt
pavement is not correct. Answer: Rip the asphalt before removing
with a paddle wheel scraper
◉ when working with transit you take the height of the instrument
and. Answer: Subtract
◉ After placing a steel pipe pile what do you fill it with. Answer:
Concrete
◉ What kind of pipe needs a tracer. Answer: Plastic gas pipe
◉ When you are paving asphalt road and one pass hell should you
proceed. Answer: Start rolling on low side and progress towards
high side
◉ What should be done to prevent concrete from sticking to steal
forms. Answer: Use form oil
, ◉ When finish grading what is the allowable. Answer: .08'
◉ What do you line an old underground storage tank with. Answer:
Special coating or bladder
◉ On what type of surface should you not use latex paint. Answer:
Smooth gypsum board
◉ A steep near vertical slope along the margin of a landslide.
Answer: Scarp
◉ What is the minimum tolerance that must be maintained for a
concrete slab to be considered very. Answer: 1/8"
◉ The hardest part of working with concrete forms is. Answer:
Locating and placing embedded items
◉ The flanges of the steel T beams should be what width. Answer:
1/2
◉ When asphalt is too cool what does it look like. Answer: Stiff
appearance
