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Arizona CDL Practice Test: Tank - Test 2020

(From the 2020 Arizona CDL Handbook)
Number of tests: 29
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 Arizona 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 Arizona DMV locations.

You have made error(s) so far.
Your Challenge Library: 0

1. If you have a cellphone, it's best to call for assistance _______.

2. The effects of liquid surge can be particularly dangerous for tankers driving on what type of surface?

3. Because of a liquid tanker's high center of gravity and liquid surge, you should approach curves by ______.

4. A trailer air supply that is in good working condition will pop out when the air pressure falls into what range?

5. What is the best way to recognize that the trailer has started to skid?

6. How should you check a tank for any spills?

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