New York CDL Practice Test: Double and Triples - Test 3 2020

(From the 2020 New York CDL Handbook)

Number of tests:	26
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.

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1. The pressure in the service line indicates ______.

Continue at your current speed.
There is a traffic signal ahead.
You must stop ahead.
Speeding is not allowed.

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

Sound your horn so the children will hear you.
Race your motor to warn the children that you are moving.
Tell the children to stay away from the driveway.
Walk to the back of the car to be sure the way is clear.

3. What are hose couplers?

Take a cold shower before driving.
Stop drinking one-half hour before driving.
Drink coffee before driving.
Ride home with a friend who has not been drinking.

4. Usually, a fully charged air system has _______ psi.

At intersections or railroad crossings
All of the above
When the road is wet or slippery
On narrow or winding roads

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

1-Year
6-Month
60-Day
30-Day

6. The tractor protection valve ______.

either 1 or 2
white
neither 1 nor 2
yellow

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