Iowa CDL Practice Test: Tank - Test 2024
Based on
2024 IA CDL Handbook
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 IA CDL 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 Iowa DOT locations.
3. What is the best way to recognize that the trailer has started to skid?
A
By sounding the horn.
B
By seeing it in the mirrors.
C
By flashing the high beams.
D
By turning off the headlights.