1. What is the cause of more than half the truck driver deaths in crashes?
A Rush hour traffic.
B Truck rollovers.
C Heart attacks.

2. Are fully loaded rigs more likely to roll over in a crash than empty rigs?
A There is no difference as to the load so far as rolling over is concerned.
B Fully loaded rigs are less likely to roll over in a crash.
C Fully loaded rigs are 10 times more likely to roll over in a crash.

3. What two things can a driver do to prevent rollovers?
A Keep the cargo as close to the ground as possible. Go slowly around turns.
B Go slowly around turns. Try to raise the center of gravity of your load.
C Accelerate slowly. Slow down quickly.

4. When you make a quick lane change, the trailer only may overturn. What is the effect called that produces this result?
A The crack-the-whip effect.
B The worm effect.
C The hula effect.

5. Since a sudden movement with your steering wheel can tip a trailer over, how far behind other vehicles should you follow when pulling trailers.
A At least one second for each unit of your vehicle plus another second if going over 45 miles per hour.
B At least one second for each 20 feet of your vehicle length, plus another second if going over 35 miles per hour.
C At least one second for each ten feet of your vehicle length, plus another second if going over 40 miles per hour.

6. What are some things that you can do to avoid getting surprised and having to make a sudden lane change?
A Use your highbeam headlights at all times. Look far ahead all the time.
B Slow down to a safe speed before going into a turn. Focus your attention on the taillights of the vehicle ahead.
C Look far enough down the road and allow lots of following distance.

7. Why do large combination vehicles that are empty take longer to stop than when they are fully loaded?
A When lightly loaded, stiff suspension springs and strong brakes give poor traction and make it easy to lock up the wheels.
B Combination vehicles are longer than bobtails and therefore require more length to stop.
C Empty trucks are harder to control and the brake connections are more likely to come loose.

8. Why must you be extra careful when bobtailing?
A Bobtails may not be equipped with splash guards or back bumpers.
B Bobtails stop more smoothly but take longer to stop.
C Bobtails can be hard to stop smoothly and take longer to stop than a loaded tractor-semi trailer.

9. When the wheels of a trailer lock up, what will the trailer tend to do?
A The trailer will immediately stop.
B The trailer will tend to jackknife or swing around.
C The trailer will automatically break loose from the fifth wheel assembly.

10. Why should you check your mirrors whenever you apply the brakes hard?
A This is the best way to recognize if the trailer has started to skid.
B To tell if the mirrors are still in adjustment.
C To tell if your cargo door comes open.