» Wyoming Doubles Triples 1 » Page 2 of 2

CDL DOUBLES TRIPLES PRACTICE TEST WYOMING

11. If you will be transporting hazardous materials that require placards, you must:
transport the materials at night only.
ask permission of the local transportation agency.
obtain a special transit permit.
obtain a hazardous materials endorsement.
12. If your vehicle is hydroplaning, you should:
stay off the brake.
speed up.
apply the brakes.
put the vehicle in reverse.
13. The tractor protection valve:
supplies air to the trailer air tanks.
controls the emergency brakes on combination vehicles.
works the trailer brakes.
keeps air in the tractor brake system should the trailer break away or develop a bad leak.
14. Watch out for black ice:
when it is snowing.
right after it starts to rain.
when the temperature is above freezing and the road is dry.
any time the temperature is below freezing and the road looks wet.
15. Which of the following is not a sign of fatigue?
Keeping a steady speed
Yawning repeatedly
Frequent blinking
Rubbing eyes
16. Which of the following vehicles is most likely to turn over?
3 axle tractor semitrailer
5 axle tractor semitrailer
Triple trailer
65 ft. conventional double
17. When the temperature drops:
bridges will not freeze.
bridges will freeze before the road will.
bridges usually freeze after other parts of the roadway.
None of the above.
18. Emergency brakes must be held on by:
mechanical force.
dynamic pressure.
hydraulic pressure.
air pressure.
19. When conducting a pre-trip inspection:
you should review the last vehicle inspection report.
the vehicle inspection report should not be reviewed unless your supervisor tells you to do so.
the inspection report should only be reviewed if you will be carrying passengers.
None of the above.
20. Which of the following will off-track the most?
The rear wheels of the last trailer.
The front wheels of the last trailer.
The front wheels of the tractor.
The rear wheels of the tractor.
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More