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Maryland CDL Practice Test: Class B - Test 4 2019

(From the 2019 Maryland CDL Handbook)
Number of tests: 4
Number of questions: 30
Passing score: 80

Directions: When applying for this license, applicants must pass a 50-question test. And applicants must score 80% to pass the test. The following questions are based on the details provided in the Maryland Commercial Driver Handbook. Endorsements that may be used with a Class B CDL include Hazardous Materials, Passenger, Double and Triples, HazMat and Tanker, Air Brakes and School bus. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Maryland DMV locations.

You have made 2 errors so far.
1. What emergency equipment should your vehicle have?
  • Exercising.

  • Allow your body time to get rid of alcohol.

  • Taking a cold shower.

  • Drinking coffee.

2. During the "on-road test portion" of your on-road test, you will need to ________.
  • Turning right

  • Turning left

  • Slowing

  • Stopping

3. The air compressor is connected to the engine through ______.
  • Five hours.

  • Five minutes.

  • One day.

  • One hour.

4. You will need to pass the pre-trip vehicle inspection test ________.
  • Shift into neutral, do not use the brakes.

  • Apply the brakes quickly and firmly.

  • Shift to a lower gear, do not use the brakes.

  • Apply the brakes in slow, steady strokes.

5. What is another name for front-end header board?
  • No right turn.

  • No turn on red.

  • No u-turn.

  • No left turn.

6. If you have committed three serious traffic violations within a three-year period involving a CMV, you will likely lose your CDL at least _______ days.
  • The middle of the intersection

  • The left lane

  • The right lane

  • Any lane