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CDL HW EXAM QUESTIONS CORRECTLY ANSWERED AND UPDATED.

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CDL HW EXAM QUESTIONS CORRECTLY ANSWERED AND UPDATED. A commercial motor vehicle's (CMV's) engine controls are used for: * 10 points A. safely operate your vehicle. B. start up and shut down the vehicle's engine. C. warn you when pressures or temperatures reach a dangerous level. D. help ...

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  • August 15, 2024
  • 80
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • cdl
  • Cdl
  • Cdl
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CDL HW EXAM QUESTIONS
CORRECTLY ANSWERED AND
UPDATED.

A commercial motor vehicle's (CMV's) engine controls are used for: *

10 points

A. safely operate your vehicle.

B. start up and shut down the vehicle's engine.

C. warn you when pressures or temperatures reach a dangerous level.

D. help you steer, accelerate, brake, and park your CMV. - CORRECT ANSWER start up and shut down
the vehicle's engine



If your truck has a(n) _____, you must first turn the engine key to the 'on' position before engaging it. *

10 points

A. starter button

B. engine brake

C. clutch button

D. cruise control - CORRECT ANSWER starter button



Which clutch position is required to start the engine or shift gears? *

10 points

A. Engaged

B. Free play

C. Disengaged

D. Clutch brake - CORRECT ANSWER Disengaged



Which of the following is a yellow, diamond-shaped knob that allows you to activate the parking brake?
*

,10 points

A. Parking brake control valve

B. Trailer air supply valve

C. Foot brake control valve

D. Trailer brake hand-control valve - CORRECT ANSWER Parking brake control valve



Secondary vehicle controls: *

10 points

A. provide backup functionality to the primary controls.

B. shut down the vehicle's engine in an emergency.

C. assist you in a safely operating your vehicle.

D. all of the above. - CORRECT ANSWER assist you in a safely operating your vehicle



If your CMV has a _____, the Federal Motor Carrier Safety Regulations (FMCSR) say you must use it. *

10 points

A. seat heater

B. cruise control

C. seat belt

D. fog lamps - CORRECT ANSWER seat belt



Which vehicle instrument measures the voltage in a vehicle's electrical system? *

10 points

A. Voltmeter

B. Exhaust pyrometer

C. Ammeter

D. Both A and C - CORRECT ANSWER Voltmeter



What is a normal operating range for a CMV's oil pressure gauge? *

10 points

,A. 20-45 psi

B. 30-50 psi

C. 40-65 psi

D. 50-70 psi - CORRECT ANSWER 30-50 psi



Which of the following warning devices help you to know when exhaust temperatures are abnormal? *

10 points

A. Pyrometer warning light

B. Coolant temperature warning light

C. Differential warning light

D. Both A and B - CORRECT ANSWER Pyrometer warning light



Which of the following warning devices indicates there is inadequate pressure in the air brake system? *

10 points

A. Coolant level alarm

B. Oil level alarm

C. Low pressure warning alarm/light

D. Oil pressure warning light - CORRECT ANSWER Low pressure warning alarm/light



In order to put a commercial motor vehicle on the road, you must first: *

10 points

A. complete and sign a DVIR.

B. ask a mechanic about the vehicle's condition.

C. conduct a thorough pre-trip inspection.

D. perform a short test drive to verify safe operation. - CORRECT ANSWER complete and sign a DVIR.



Before you inspect the engine compartment and front axle components: *

10 points

A. verify the parking brakes have been set.

, B. put the vehicle's keys in the ignition, depress the clutch, and start the engine.

C. remove the chocks from the wheels.

D. close the hood. - CORRECT ANSWER verify the parking brakes have been set.



What is the minimum tread depth for the steer-tire? *

10 points

A. 2/32 inch

B. 4/32 inch

C. 6/32 inch

D. 8/32 inch - CORRECT ANSWER . 4/32 inch



What is the only circumstance you are not required to inspect your cargo and load securing devices? *

10 points

A. If your load is sealed and you have been ordered not to open it.

B. If your vehicle is loaded in a way that makes cargo inspections impossible

C. If your destination is less than 100-air miles from your home terminal

D. Both A and B - CORRECT ANSWER Both A and B



When is it appropriate to conduct a post-trip inspection? *

10 points

A. Whenever it's most convenient, but before the start of your next day

B. The same exact time every evening, regardless of where you are

C. At the end of every work day

D. Right before 12 midnight, when your next day begins on your driver's daily log - CORRECT ANSWER At
the end of every work day



What items should a post-trip inspection include? *

10 points

A. Brakes, steering, and lighting

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