In an air brake system, air tank drains are used to remove water and compressor oil from the air tanks. When operating a drain, be sure to drain the tank completely.

Be used to drain the tanks completely.

Only be used when it is wet outside.

Be used to drain the tanks completely.

During the vehicle inspection test, you will be required to do a complete inspection of your vehicle. During this inspection, you must explain to the examiner what you are inspecting and why you are inspecting those items.

Explain what you would inspect and why.

In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 60 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.

When tank pressure falls below 60 psi.

When tank pressure falls below 120 psi.

When tank pressure falls below 60 psi.

When tank pressure falls below 10 psi.

There should be at least 4/32 of an inch of tread depth in every major groove on front tires and 2/32 of an inch on other tires. Valve stems should not be cut or cracked. Tire sizes should not be mismatched.

Tire tread that is 4/32 of an inch deep.

In an air brake system, the air compressor governor controls when the air compressor pumps air into the storage tanks. It stops pumping if the pressure in the tanks becomes too high, and begins pumping if the pressure becomes too low.

It stops the compressor from pumping air.

It turns on the air compressor.

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

Acceptable for drivers contacting their employers.

Class B Driving Test | Idaho 2024 #1 Page 5 of 7

Train for FREE online with our Idaho 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 ID CDL class B permit in 2024, 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.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | Idaho 2024 #1 Page 5 of 7

29 . Air tank drains should:

30 . For a basic vehicle control skills test, you are expected to be able to:

31 . As part of the vehicle inspection test, you will be asked to:

32 . A low air pressure warning signal should activate:

33 . When inspecting your tires, you do not want to find:

34 . What does the air compressor governor do?

35 . Texting while operating a CMV is:

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