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Utah CDL Permit Test - Double

(From the 2020 Utah CDL driver handbook)
Number of questions: 20
Passing score: 16
Directions: This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Each question has two, three or four possible answer choices. Test questions come from the Utah Commercial Driver License Handbook. Questions come from chapters covering: Driving Safely, Air Brakes (if applicable), Combination Vehicles and Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
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Passing grade —
4 or fewer errors
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8.
When using a fire extinguisher to put out a fire, you should:
Stay as far away as possible from the flames.
Aim at the flames.
Use any extinguisher on every type of fire.
9.
If driving so slowly that you could impede other drivers, you should:
Drive in the left lane.
Drive while using your four-way flashers.
Drive without using any lights.
10.
If another driver is tailgating you, you should:
Move into the left lane.
Speed up.
Increase the distance between you and the vehicle ahead.
11.
An open automobile window in cold weather may indicate that the driver is:
Driving impaired.
Inappropriately dressed.
Using the heat inside their vehicle.
Enjoying the fresh air.
12.
When checking tires, finding which of the following is not a cause for concern?
Too much air pressure
Tread of at least 4/32 of an inch in the grooves on front tires
Radial and bias-ply tires used together
13.
Most drivers are the least alert:
In the morning.
In cold weather.
At night.
After work.
14.
What does an air compressor do in an air brake system?
It pumps air into the air storage tanks.
It fills the tires.
It moves air to the back of the truck.
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