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Maryland CDL Practice Test: Tank - Test 2018

(From the 2018 Maryland CDL Handbook)
Number of tests: 1
Number of questions: 30
Passing score: 80

Directions: To obtain this endorsement for hauling any liquid or gaseous materials in a tank or tanks, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the Maryland Commercial Driver Handbook. The Tanker Vehicles endorsement can be used with the Class A, B, or C CDL. 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. A trailer air supply that is in good working condition will pop out when the air pressure falls into what range?
  • Sound your horn to warn others

  • Use your high beams

  • Drive on the shoulder

  • Use your four-way flashers

2. How should you check a tank for any spills?
  • Warning of merging traffic to the right.

  • Warning of a right turn ahead.

  • Warning of a right curve ahead.

  • Warning of a winding road ahead.

3. The effects of liquid surge can be particularly dangerous for tankers driving on what type of surface?
  • 25 mph

  • 30 mph

  • 20 mph

4. Because of a liquid tanker's high center of gravity and liquid surge, you should approach curves by ______.
  • Low flying aircraft warning.

  • General information sign for an aircraft manufacturing plant.

  • No fly zone ahead.

  • General information sign for an airport.

5. What is the best way to recognize that the trailer has started to skid?
  • Flash your high beams

  • Sound your horn

  • Turn on your high beams

  • Turn off your headlights

6. If you have a cellphone, it's best to call for assistance _______.
  • Drive with the flow of traffic

  • Fluctuate your speed to keep alert

  • Drive faster than the flow of traffic

  • Drive slower than the flow of traffic