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DOUBLES TRIPLES TEST OH - CDL PRACTICE TEST

11. If the fifth-wheel locking lever is not locked after the jaws close around the kingpin:
the coupling is not right and you should not drive until you get it fixed.
the parking brakes are on and the wheels are chocked.
the parking brakes are on and your vehicle is safe to drive.
12. Empty trucks:
require the same stopping distance than full trucks.
require a greater stopping distance than full trucks.
require a shorter stopping distance than full trucks.
13. If your ABS malfunctions:
you should immediately come to a complete stop.
you still have normal brake functions.
the service brake will not work.
14. Most heavy-duty vehicles use:
hydraulic brakes.
air brakes.
solid brakes.
15. Which of the following vehicles is most likely to turn over?
65 ft. conventional double
3 axle tractor semitrailer
Triple trailer
16. Which of the following is most likely to get stuck on raised railroad crossings?
A single-axle tractor with no trailer
A single-axle tractor pulling a small trailer
A low slung unit
17. Texting while operating a commercial motor vehicle is:
acceptable if you are contacting your dispacther.
acceptable if you are contacting your supervisor.
illegal.
18. Because of the "crack-the-whip" effect, doubles and triples:
are more likely to turn over than other combination vehicles.
are more likely to run out of gas than other combination vehicles.
are much slower than other combination vehicles.
19. You as a driver should always:
make emergency plans when you see a hazard.
stay in your lane.
reduce your following distance.
20. Which of the following statements about retarders is NOT correct?
Retarders help you avoid skids.
You should turn the retarder off whenever the road is wet, icy, or snow covered.
Retarders help slow a vehicle, reducing the need for using brakes.
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