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Maryland CDL Practice Test: Class B - Test 3 2019

(From the 2019 Maryland CDL Handbook)
Number of tests: 3
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. Vehicles with air brakes _________.
  • Avoid crossing bridges or intersections

  • Drive as you would on dry roads

  • Use alternate routes

  • Increase your following distance

2. If you have committed two violations of an "out-of-service order" in a ten-year period, you will likely lose your CDL for what amount of time?
  • Sound your horn

  • Flash your headlights

  • Use your emergency lights

  • Wave your arms

3. 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

  • Any lane

  • The right lane

  • The left lane

4. Tires should be replaced ________.
  • Wearing light-colored clothing.

  • Wearing dark-colored glasses.

  • Led by a guide dog, or using a white or metallic cane.

  • Helped by another person.

5. If you are transporting any amount of hazardous materials, you must _____.
  • On the main road, just before the exit lane

  • Once you have moved into the exit lane

  • When you first see the exit sign

  • Once you see the toll booth

6. Why can drivers be at a greater risk of an accident when they drive at night?
  • The speed limit is always a safe speed

  • The safe speed to drive depends on many conditions

  • Driving slowly is always safer

  • Accelerating is always dangerous