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Connecticut CDL Practice Test: Double and Triples - Test 2 2020

(From the 2020 Connecticut CDL Handbook)
Number of tests: 25
Number of questions: 30
Passing score: 80

Directions: 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 Connecticut Commercial Driver 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 Connecticut DMV locations.

You have made error(s) so far.
Your Challenge Library: 0

1. You should check the height of the trailer before connecting a converter dolly to a second or third trailer. The trailer height is right when _____.

2. The tractor protection valve ______.

3. If you are coupling twin trailers, you should release the dolly brakes by ______.

4. What are hose couplers?

5. When turning wide, keeping the rear of your long vehicle close to the curb will ________.

6. You are testing the stopping action of service brakes on a hydraulic system. Which of the following may indicate that there is a problem with your service brakes?

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