Alabama CDL Practice Test: Tank - Test 4 2021

Based on 2021 AL CDL Handbook
Number of questions: 30
Passing score: 80%
Acceptable number of errors: 6

Instruction: 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 Alabama 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 Alabama DMV locations.

1. A closed tractor protection valve ________.
A
Rigid bridges
B
Truss bridges
C
Suspension bridges
D
Drawbridges
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