Idaho CDL Practice Test: Tank and Hazmat - Test 2025
Based on
2025 ID CDL Handbook
Instruction: To obtain this endorsement for hauling hazardous materials in a tank or tanks, applicants must pass a 30-question test. And to pass the test, applicants must score at least 80%. Test questions are from the ID CDL Handbook. If you need additional information, please contact your local DMV office. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Idaho DMV locations.
1. A tank trailer with baffles helps to control ________.
A
Liquid movement from side to side.
B
None of the listed answers.
C
Liquid movement from front to back.
D
The weight of the vehicle.