CDL COMBINATION PRACTICE TEST (CT)

11. If loose or missing, _______ may cause movement between the frame and fifth wheel assembly.
safety chains
electric connectors
mounting bolts
locking pins
12. When backing a trailer, if you turn the wheel left:
the cab will go right and the trailer will go left.
the cab and the trailer will go left.
the cab will go left and the trailer will go right.
the cab and the trailer will go right.
13. Poor weight balance:
makes it easier to turn.
improves handling.
increases fuel efficiency.
can make vehicle handling more difficult.
14. If your brakes get wet, it can cause them:
to apply unevenly.
to grab.
to be weak.
All of the above.
15. After coupling the trailer, begin raising the landing gear by using:
the electrical cord.
the low gear range.
the crank handle.
the high gear range.
16. Which of the following is not a reason for covering cargo?
To protect people from spilled cargo
To prevent other drivers from looking at the cargo
To protect the cargo from weather
All of the above.
17. Which of the following is NOT part of testing the tractor protection valve?
Shutting off the engine.
Charging the trailer air brake system.
Stepping on and off the brake pedal several times to reduce the air pressure in the tanks.
Pulling forward slowly, then applying the trailer brakes.
18. When parking, you should choose a spot:
that allows you to pull forward when you leave.
that requires backing up.
that allows you do a walk around inspection.
All of the above.
19. If you are being tailgated, you should:
try to let the other vehicle pass.
turn on your taillights.
speed up.
drive on the shoulder.
20. When you make a quick lane change, the crack-the-whip effect can turn the trailer over. The crack-the-whip effect is caused by:
worn tire tread.
the rear trailer of a triple.
strong wind.
rearward amplification.
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More