Instructions

Knowledge Test Class A

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 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: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.

Number of Question 50

Passing Score 40

1. Joggers who are wearing headsets:

Are usually aware of what is happening around them.

May not be aware of what is happening around them.

Can clearly hear sounds of traffic.

Usually don’t have music playing.

Be careful around pedestrians, joggers, and cyclists who are wearing headphones. They may not be able to clearly hear surrounding traffic and may not be aware that you are there.

2. A cargo of hanging meat:

Is stable due to the placement of the load.

Can be problematic because animals may be attracted to the scent of the meat.

Is unstable due to its high center of gravity.

Is discouraged during the summer months.

An operator should drive with care when transporting a cargo of hanging meat. Such a load is unstable, both because it has a high center of gravity and because the swinging of the meat can affect the driver's handling of the vehicle.

3. If an aggressive driver is involved in a crash on the road ahead of you, you should:

Block the driver in with your vehicle.

Stop after the crash scene and report the driver’s aggressive behavior to the police.

Continue driving and mind your own business.

Pull over and yell at the driver.

If you observe a crash involving an aggressive driver, you should stop a safe distance from the crash scene, wait for police to arrive, and inform them of the aggressive behavior you witnessed.

4. Which of the following is not a sign of tire failure?

A loud sound

Vibration

Smoother steering

If you experience tire failure, you may hear the loud "bang" sound of a blowout or feel a heavy thumping or vibration in your vehicle. If steering begins to feel heavy, or if the rear of your vehicle begins to fishtail, you should stop to check your tires.

5. What happens when a vehicle hydroplanes?

The tires lose contact with the road.

The trailer disengages from the tractor.

The vehicle becomes easier to control.

On a wet road, it is possible for a vehicle's tires to lose traction with the road surface and begin to glide along on the layer of water. This is referred to as hydroplaning. Hydroplaning can occur at speeds as low as 30 mph.

6. During a vehicle inspection, ensure that lug nuts are all of the following, except:

Free of cracks.

Free of distortions.

Loose.

Free of rust.

During a vehicle inspection test, you must ensure that all lug nuts are present, free of cracks and distortions, and showing no signs of looseness, such as rust trails or shiny threads. Verify that all bolt holes are free of cracks and distortions.

7. In order to receive a hazardous materials endorsement, a person must complete all of the following, except:

A HazMat knowledge test.

An FBI fingerprint check.

A CIA intelligence check.

To obtain a hazardous materials endorsement, you must pass the HazMat knowledge test; undergo a Federal Security Threat Assessment; provide proof of U.S. citizenship or permanent residency; and undergo an FBI fingerprint check and federal criminal history background check.

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