Delaware CDL Practice Test: Double and Triples - Test 2023
Based on 2023 DE 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 DE 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 Delaware DMV locations.
1. Coolant recovery containers permit you to ________.
Check the coolant level while the engine is hot.
None of the listed answers.
Store extra coolant in case you run out of the main coolant.
Cool down the coolant.