CDL COMBINATION VEHICLES questions and
answers 2025\2026 A+ Grade
TRUE OR FALSE:
More than half of truck driver deaths in crashes are the result of truck rollovers.
- correct answer True
Fully loaded rigs are ___ times more likely to roll over in a crash than empty rigs.
- correct answer 10
What can you do to prevent rollovers?
- correct 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.
- correct answer True
Rollovers happen when you turn too___
- correct answer Fast
Trucks with trailers have a dangerous...
- correct 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.
- correct answer True
Large combination vehicles take longer to stop when they are...
- correct answer Empty
How much follwoing distance should you have?
- correct 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?
- correct 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.
- correct answer True
TRUE OR FALSE:
Tests have shown that bobtails are easy to stop.
- correct answer False
In any combination rig, allow lots of ___ distance and look far ahead.
- correct answer Following
What is the best way to recognize that the trailer has started to skid?
- correct 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?
- correct answer True
answers 2025\2026 A+ Grade
TRUE OR FALSE:
More than half of truck driver deaths in crashes are the result of truck rollovers.
- correct answer True
Fully loaded rigs are ___ times more likely to roll over in a crash than empty rigs.
- correct answer 10
What can you do to prevent rollovers?
- correct 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.
- correct answer True
Rollovers happen when you turn too___
- correct answer Fast
Trucks with trailers have a dangerous...
- correct 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.
- correct answer True
Large combination vehicles take longer to stop when they are...
- correct answer Empty
How much follwoing distance should you have?
- correct 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?
- correct 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.
- correct answer True
TRUE OR FALSE:
Tests have shown that bobtails are easy to stop.
- correct answer False
In any combination rig, allow lots of ___ distance and look far ahead.
- correct answer Following
What is the best way to recognize that the trailer has started to skid?
- correct 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?
- correct answer True
