CDL DOUBLES PRACTICE TEST TEXAS

11. If your trailer starts to skid, you should:
release the brakes.
steer in the opposite direction.
pump the brakes.
lock the brakes.
12. When parked on the side of the road, you should:
turn off all lights.
activate the right turn signal.
flash your brake lights.
use the 4-way emergency flashers.
13. During freezing weather, which area is most likely to be slippery after it rains?
Roads that look wet.
Bridges.
Shaded areas.
All of the above.
14. To prevent rollover, you should:
keep the cargo as close to the ground as possible.
put the lightest parts of the cargo under the heaviest parts.
place the cargo near the front of the trailer.
place the cargo near the rear of the trailer.
15. Dual tires:
should not come in contact with each other.
are dangerous.
should always come in contact with each other.
should come in contact with each other whenever possible.
16. It may not be safe to operate at legal maximum weights:
on two-way streets.
on highways.
in hot weather.
during bad weather or in mountains.
17. When the trailer breaks away or develops a bad leak, the tractor protection valve will close automatically and:
the tractor will lose all air pressure.
the trailer supply valve will stay open.
the engine will shut down.
the trailer emergency brakes will come on.
18. To know how much space you should keep in front of you when driving at speeds below 40 mph, one good rule says you need at least ______ for each ______ of vehicle length.
3 seconds; 50 feet
2 seconds; 10 feet
1 second; 10 feet
1 second; 5 feet
19. When you double your speed, the braking distance is:
2 times longer.
3 times longer.
4 times longer.
the same.
20. When driving on slippery roads, you should NOT:
try to anticipate stops early.
go slowly.
use the engine brake.
watch far enough ahead to keep a steady speed.
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