NC CDL COMBINATION VEHICLES EXAM 2026
QUESTIONS ANSWERED CORRECTLY
◉ When following behind other vehicles, you should follow
A. At least one second for every 20 feet of your vehicle length
B. At least two seconds for every 10 feet of your vehicle length
C. At least two seconds for every 10 feet of your vehicle length, plus
one second if going over 50 MPH
D. At least one second for every 10 feet of your vehicle length, plus
one second if going over 40 MPH. Answer: At least one second for
every 10 feet of your vehicle length, plus one second if going over 40
MPH. You should insure that you have a safe following distance to
lessen the chance of making a sudden steering change.
◉ A trailer jackknife is likely to happen when
A. The vehicle has a high center of gravity
B. The wheels of the trailer lock up
C. The front drive wheels lose traction
D. There is too much weight on the steering axles. Answer: The
wheels of the trailer lock up. When the wheels of the trailer lock up,
the trailer may swing around resulting in a trailer jackknife. Trailer
jackknifes are more likely to happen when the trailer is empty or
lightly loaded. When a vehicle has a high center of gravity, a rollover
, may happen. When there is too much weight on the steering axles,
hard steering can occur.
◉ What is the fastest and best way to recognize that your trailer has
started to skid?
A. Feeling your steering wheel shake
B. Listening for the distinctive skidding sound
C. Seeing it in your mirrors
D. Feeling your vehicle pull to the side. Answer: See it in your
mirrors. The best and earliest way to determine that your trailer has
started to skid is by seeing it in your mirrors. You should check your
mirrors regularly, especially after applying the brakes hard.
◉ If your trailer begins to skid, you should
A. Maintain light pressure on your brakes until the trailer
straightens out
B. Release your brakes until the trailer wheels grip the road again
C. Turn the steering wheel in the direction of the skid
D. Apply to the trailer hand brake to straighten out the trailer.
Answer: Release your brakes until the trailer wheels grip the road
again. If your trailer skids (jackknife) your best course of action is to
release the brakes until you get traction back. You should not apply
the trailer hand brakes, since the skid was caused by wheel lock up
in the first place.
QUESTIONS ANSWERED CORRECTLY
◉ When following behind other vehicles, you should follow
A. At least one second for every 20 feet of your vehicle length
B. At least two seconds for every 10 feet of your vehicle length
C. At least two seconds for every 10 feet of your vehicle length, plus
one second if going over 50 MPH
D. At least one second for every 10 feet of your vehicle length, plus
one second if going over 40 MPH. Answer: At least one second for
every 10 feet of your vehicle length, plus one second if going over 40
MPH. You should insure that you have a safe following distance to
lessen the chance of making a sudden steering change.
◉ A trailer jackknife is likely to happen when
A. The vehicle has a high center of gravity
B. The wheels of the trailer lock up
C. The front drive wheels lose traction
D. There is too much weight on the steering axles. Answer: The
wheels of the trailer lock up. When the wheels of the trailer lock up,
the trailer may swing around resulting in a trailer jackknife. Trailer
jackknifes are more likely to happen when the trailer is empty or
lightly loaded. When a vehicle has a high center of gravity, a rollover
, may happen. When there is too much weight on the steering axles,
hard steering can occur.
◉ What is the fastest and best way to recognize that your trailer has
started to skid?
A. Feeling your steering wheel shake
B. Listening for the distinctive skidding sound
C. Seeing it in your mirrors
D. Feeling your vehicle pull to the side. Answer: See it in your
mirrors. The best and earliest way to determine that your trailer has
started to skid is by seeing it in your mirrors. You should check your
mirrors regularly, especially after applying the brakes hard.
◉ If your trailer begins to skid, you should
A. Maintain light pressure on your brakes until the trailer
straightens out
B. Release your brakes until the trailer wheels grip the road again
C. Turn the steering wheel in the direction of the skid
D. Apply to the trailer hand brake to straighten out the trailer.
Answer: Release your brakes until the trailer wheels grip the road
again. If your trailer skids (jackknife) your best course of action is to
release the brakes until you get traction back. You should not apply
the trailer hand brakes, since the skid was caused by wheel lock up
in the first place.
