DMV Sample Questions » DMV Commercial Driver Sample Questions

Commercial Driver (Class A or B License) Sample Questions

11. You are about to go down a long, steep, downhill grade in a new truck. You should:
    1. use a lower gear than you would use to climb the uphill grade.
    2. use the same gear you would use to climb the uphill grade.
    3. use a higher gear than you would use to climb the uphill grade.

    Answer :A

12. Which of these items is checked in a pre-trip inspection?
    1. Cargo securement.
    2. Whether all vehicle lights are working and are clean.
    3. Both of the above.

    Answer :C

13. If you are stopped on a one-way or divided highway, you should place reflective triangles at:
    1. 10 feet, 100 feet, and 200 feet toward approaching traffic.
    2. 25 feet, 100 feet, and 250 feet toward approaching traffic.
    3. 50 feet, 100 feet, and 300 feet toward approaching traffic.

    Answer :A

14. When a heavy fog occurs you should:
    1. use high beams for best visibility.
    2. park off to the right side of the road with you parking lights on.
    3. park at a rest area or truck stop until the fog has lifted.

    Answer :C

15. You should plan ahead when you park your vehicle so that:
    1. it will be very easy for you to check your vehicle before you get back on the road.
    2. you are only required to pull forward when you leave.
    3. you don't need to back up more than ten feet.

    Answer :B

16. The term "Gross Combination Weight" refers to:
    1. total weight of a powered unit and the trailer.
    2. total weight of the trailer and the load.
    3. total weight of a powered unit, the trailer and the cargo.

    Answer :C

17. A driver should look _______ ahead of the vehicle while driving.
    1. 2-5 seconds
    2. 5-10 seconds
    3. 12-15 seconds

    Answer :C

18. Which of the following statements is true about overhead clearance?
    1. Posted signs for overhead clearance are always correct.
    2. Paving a road does not affect the clearance height under bridges or overpasses.
    3. Cargo weight may change the height of your vehicle.

    Answer :C

19. Which of the following statements is true when you are performing a pre-trip inspection on your brakes and suspension system?
    1. Brake shoes should be free of oil, grease, and brake fluid.
    2. One missing leaf spring is not dangerous.
    3. A cracked spring hanger is not dangerous.

    Answer :A

20. A broken exhaust system is dangerous because:
    1. Exhaust noise will damage the driver's ears.
    2. Toxic fumes and gasses could enter the cab or sleeper berth.
    3. The leaking exhaust smoke pollutes the air.

    Answer :B