VT CDL COMBINATION TEST - PRACTICE TEST

11. If your vehicle gets stuck on the railroad tracks, you should:
check for identifiable landmarks to give the location of the crossing.
get out of your vehicle and away from the tracks.
gather up your paperwork and shipping papers while calling 911, then get out of the vehicle.
12. When you drive a tractor-trailer combination with ABS, you should:
pump the brakes.
apply the trailer hand brake whe braking.
brake as you always have.
13. If your vehicle thumps or vibrates heavily, it may be a sign that:
you need to shift up.
one of the tires has gone flat.
the brakes have failed.
14. After a tire has been changed, you should:
deflate the tire to 15 psi.
decrease tire pressure.
stop a short while later and check that the nuts are tight.
15. When coupling a tractor to a semi-trailer, after checking if the fifth-wheel is in proper position for coupling you should:
make sure the area around the vehicle is clear and the trailer wheels are chocked.
connect the electrical cord and check the air lines.
connect the air lines to the trailer.
16. When you get ready to back under the semi-trailer, you should:
line up directly in front of the trailer.
line up about 15 degrees off the line of the trailer.
back under the trailer at an angle to avoid pushing the trailer sideways.
17. If the fifth-wheel locking lever is not locked after the jaws close around the kingpin:
the parking brakes are on and the wheels are chocked.
the parking brakes are on and your vehicle is safe to drive.
the coupling is not right and you should not drive until you get it fixed.
18. Dollies with ABS are required to have a malfunction lamp:
on the left side.
on the rear.
on the right side.
19. Under a pressurized system, the radiator cap:
should never be hot.
should never be removed until the system has cooled.
should be removed when the coolant is hot.
20. How many red reflective triangles should you carry?
5
3
2
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