Iowa CDL Practice Test: HazMat - Test 6 2023
Based on 2023 IA CDL Handbook
Instruction: To obtain this endorsement for hauling hazardous materials, applicants must pass a 20-question test. Before taking the test, applicants must pass a Transportation Security Administration background check. And to pass the test, applicants must score at least 80%. Test questions are from the IA CDL Handbook. The Hazardous Materials 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.
1. How often should you inspect your bus?
Only once a month, preferably near the end of the month.
Before and at the end of each shift
Whenever you feel like it.
During the summer only.