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New York CDL Practice Test: Double and Triples - Test 3 2019

(From the 2019 New York CDL Handbook)
Number of tests: 3
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 New York 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 New York DMV locations.

You have made 2 errors so far.
1. Usually, a fully charged air system has _______ psi.

  • All of the above

  • When the road is wet or slippery

  • On narrow or winding roads

  • At intersections or railroad crossings

2. Trailers that do not have spring brakes have emergency brakes, which work from ________.

  • 30-Day

  • 6-Month

  • 60-Day

  • 1-Year

3. The tractor protection valve ______.

  • yellow

  • either 1 or 2

  • neither 1 nor 2

  • white

4. The pressure in the service line indicates ______.

  • Continue at your current speed.

  • Speeding is not allowed.

  • There is a traffic signal ahead.

  • You must stop ahead.

5. The spring brakes come on when the air pressure drops into what range _________.

  • Tell the children to stay away from the driveway.

  • Race your motor to warn the children that you are moving.

  • Sound your horn so the children will hear you.

  • Walk to the back of the car to be sure the way is clear.

6. What are hose couplers?

  • Stop drinking one-half hour before driving.

  • Ride home with a friend who has not been drinking.

  • Drink coffee before driving.

  • Take a cold shower before driving.

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