Iowa CDL Practice Test: Tank - Test 3 2022
|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 Iowa 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 Iowa DMV locations.