TENNESSEE CDL COMBINATION PRACTICE TEST

11. If loose or missing, _______ may cause movement between the frame and fifth wheel assembly.
locking pins
electric connectors
mounting bolts
safety chains
12. During your inspection, you should look into the fifth-wheel gap and check that the _________ are fully closed around the kingpin.
mounting bolts
couplings (U-joints)
lug nuts
locking jaws
13. When approaching a vehicle with a distracted driver, you should:
sound your horn.
maintain your safe following distance.
change lanes quickly.
quickly pass the vehicle.
14. In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
assume the car left the roadway and change lanes as normal.
ease into the other lane slowly so the other car can get out of the way.
wait until you are sure the car isn't in your blind spot.
None of the above.
15. Which of the following is NOT a warning sign of fatigue?
Driving at the speed of the traffic
Frequent blinking
Trouble remembering the last few miles driven
Heavy eyelids
16. When transporting cargo, cargo securement must be checked within the first _____ miles of a trip and every _____ miles after.
50; 250
50; 150
100; 150
150; 250
17. Which of the following is true about the trailer hand valve?
The trailer hand valve works the trailer brakes.
It should be used only to test the trailer brakes.
If used in driving it could cause the trailer to skid.
All of the above.
18. What factors can cause brakes to fail or fade?
Not relying on the engine braking effect
Excessive use of the service brakes
Brakes out of adjustment
All of the above.
19. Under-loaded front axles can:
cause poor traction.
make the steering axle weight too light to steer safely.
cause the drive wheels to spin easily.
All of the above.
20. Empty trucks have the best braking. True or False?
It depends on the truck.
False.
It depends on the cargo.
True.
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