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Arizona CDL Practice Test: Double and Triples - Test 2019

(From the 2019 Arizona CDL Handbook)
Number of tests: 1
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 Arizona 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 Arizona DMV locations.

You have made 2 errors so far.
1. Coolant recovery containers permit you to ________.
  • Look only at the car in front of you while driving.

  • Keep your eyes moving to look for possible hazards.

  • Always put one car length between you and the car ahead.

2. Inspect your wheels and rims to make sure ______.
  • Slow down but don't stop until you see it.

  • Keep driving until you see the vehicle.

  • Pull to the curb and look to see if it is on your street.

  • Speed up and turn at the next intersection.

3. Stop light switches are necessary because ________.
  • Sound your horn

  • Turn off your headlights

  • Turn on your high beams

  • Flash your high beams

4. While driving a combination vehicle, you should follow at least ____ second for each ____ ft. of your vehicle length.
  • Tank trucks marked with hazardous materials placards.

  • Motor homes or pickup trucks towing a boat trailer.

  • Any vehicle with 3 or more axles or weighing more than 4,000 pounds.

5. How can you test the trailer brakes?
  • After it has been raining for awhile.

  • During a heavy downpour.

  • The first rain after a dry spell.

6. If there is rust around the wheel nuts what should you do?
  • Cancels the effect of the alcohol.

  • Decreases blood alcohol content.

  • Has no effect on blood alcohol content.

  • Increases blood alcohol content.