CDL COMBINATION VEHICLE PRACTICE TEST
DRIVER TRAINING REVIEW 2026 MOCK PAPER
DETAILED ANSWERS
◉ Fully loaded rigs are ___ times more likely to roll over in a crash
than empty rigs.
Answer: 10
◉ What can you do to prevent rollovers?
Answer: keep the cargo close to the ground
drive slowly around turns
◉ TRUE OR FALSE:
Keeping cargo low is even more important in combination vehicles
than in straight trucks.
Answer: True
◉ Rollovers happen when you turn too___
Answer: Fast
◉ Trucks with trailers have a dangerous...
,Answer: crack the whip effect
◉ TRUE OR FALSE:
When pulling trailers, a sudden movement with your steering wheel
may cause your tralier to tip over.
Answer: True
◉ Large combination vehicles take longer to stop when they are...
Answer: Empty
◉ How much follwoing distance should you have?
Answer: At leats 1 second for every 10 feet of vehicle length under
40 mph.
◉ How much following distance should you have driving 50 mph?
Answer: At least 1 second for every 10 feet of your vehicle plus an
additional second.
◉ When lightly loaded, the very stiff suspension springs and strong
brakes give poor traction.
Answer: True
, ◉ TRUE OR FALSE:
Tests have shown that bobtails are easy to stop.
Answer: False
◉ In any combination rig, allow lots of ___ distance and look far
ahead.
Answer: Following
◉ What is the best way to recognize that the trailer has started to
skid?
Answer: Seeing it in your mirriors.
◉ TRUE OR FALSE:
When braking hard you should check your mirriors to make sure
that your trailer is staying where it should?
Answer: True
◉ Why should you not use the trailer hand brake to straighten out a
jackknifing trailer.
Answer: This is the wrong thing to do since the brakes on the trailer
wheels caused the skid in the first place.
DRIVER TRAINING REVIEW 2026 MOCK PAPER
DETAILED ANSWERS
◉ Fully loaded rigs are ___ times more likely to roll over in a crash
than empty rigs.
Answer: 10
◉ What can you do to prevent rollovers?
Answer: keep the cargo close to the ground
drive slowly around turns
◉ TRUE OR FALSE:
Keeping cargo low is even more important in combination vehicles
than in straight trucks.
Answer: True
◉ Rollovers happen when you turn too___
Answer: Fast
◉ Trucks with trailers have a dangerous...
,Answer: crack the whip effect
◉ TRUE OR FALSE:
When pulling trailers, a sudden movement with your steering wheel
may cause your tralier to tip over.
Answer: True
◉ Large combination vehicles take longer to stop when they are...
Answer: Empty
◉ How much follwoing distance should you have?
Answer: At leats 1 second for every 10 feet of vehicle length under
40 mph.
◉ How much following distance should you have driving 50 mph?
Answer: At least 1 second for every 10 feet of your vehicle plus an
additional second.
◉ When lightly loaded, the very stiff suspension springs and strong
brakes give poor traction.
Answer: True
, ◉ TRUE OR FALSE:
Tests have shown that bobtails are easy to stop.
Answer: False
◉ In any combination rig, allow lots of ___ distance and look far
ahead.
Answer: Following
◉ What is the best way to recognize that the trailer has started to
skid?
Answer: Seeing it in your mirriors.
◉ TRUE OR FALSE:
When braking hard you should check your mirriors to make sure
that your trailer is staying where it should?
Answer: True
◉ Why should you not use the trailer hand brake to straighten out a
jackknifing trailer.
Answer: This is the wrong thing to do since the brakes on the trailer
wheels caused the skid in the first place.
