Knowledge Test Class B #2

FREE CDL Class B Driving Test Online | Arizona 2024

Train for FREE online with our Arizona class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a AZ CDL class B permit in 2021, practice as much as..

Train for FREE online with our Arizona class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a AZ CDL class B permit in 2021, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.

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1 . To make your vehicle more visible during the day, you should:

Low beam headlights should be used for best visibility, even during the day. Using high beam headlights around other drivers can be dangerous.

2 . If a worker is present in a work zone, you should:

When driving through a work zone, follow the posted speed limits. If workers are present, you should slow to a speed that is even lower than the posted limit.

3 . Texting while operating a CMV is:

Texting and driving is dangerous for everyone on the road. It is illegal to text while operating a CMV.

4 . When an engine is running, an acceptable oil pressure would be:

Operating oil pressure should be between 35 and 75 psi. Do not operate a vehicle if it has oil pressure that is low, dropping, or fluctuating.

5 . What does an air compressor do in an air brake system?

In an air brake system, the air compressor pumps air into the air storage tanks. The air compressor is controlled by the air compressor governor.

6 . Friction in an S-cam brake is caused when the brake shoes and linings:

Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.

7 . If other vehicles are having a difficult time getting around your truck on a road with two or more lanes, you should:

You should stay in the right lane of a multilane road if your vehicle is being slowed down by a heavy load. Allow other vehicles to pass your truck using the left lane.

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