DOUBLES TRIPLES TEST WA - CDL PRACTICE TEST

11. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
Rain
Repaving of the road
The weight of a cargo
12. To prevent rollover, you should:
drive slower around corners.
drive faster on ramps and off ramps.
drive in the left lane whenever possible.
13. When driving in very hot weather, you may have to:
reduce your speed to prevent overheating.
increase your speed until the tires cool off.
decrease your following distance.
14. Drivers transporting cargo are responsible for:
recognizing overloads.
inspecting the cargo.
All of the above.
15. Blocking and bracing are:
coupling devices used to connect the service air lines from the truck or tractor to the trailer.
used to keep cargo from sliding and to prevent movement of cargo.
driving techniques used to regain control when your drive wheels start to skid.
16. When transporting cargo, cargo securement must be checked within the first _____ miles of a trip and every _____ miles after.
100; 150
50; 150
50; 250
17. The tractor protection valve:
controls the emergency brakes on combination vehicles.
supplies air to the trailer air tanks.
keeps air in the tractor brake system should the trailer break away or develop a bad leak.
18. In newer vehicles with air brakes, you put on the parking brake:
using a P-shaped, yellow control knob.
using a diamond-shaped, yellow, push-pull control knob.
placing the transmission in Park.
19. Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
less; more
greater; more
greater; less
20. When you turn suddenly while pulling doubles, which trailer is most likely to turn over?
The front trailer is twice as likely to turn over as the tractor.
All trailers are equally likely to turn over.
The rear trailer is twice as likely to turn over as the tractor.
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