Iowa CDL Practice Test: Double and Triples - Test 2 2023
Based on 2023 IA CDL Handbook
Instruction: To obtain this endorsement for pulling two or three trailers, 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 Double/Triple trailers endorsement can be used with the Class A CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Iowa DOT locations.
1. What are hose couplers?
Drink coffee before driving.
Stop drinking one-half hour before driving.
Ride home with a friend who has not been drinking.
Take a cold shower before driving.