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CDL Air Brakes

Authored by Elyssa Hernandez

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Professional Development

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CDL Air Brakes
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70 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The emergency brakes are held by _____ force.

Air.

Heated.

Compressed.

Mechanical.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What may happen if brakes become too hot?

Brake failure.

Increased stopping distance.

Air compressor failure.

All of the above.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_____ are on the drum brakes between the push rod and S-cam.

Push rod.

Brake chamber.

Castle nut.

Slack adjusters.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An _____ helps prevent ice in air brake valves in cold weather.

Alcohol Evaporator.

Brake deicer.

Air brake heater.

None of the above.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you tell if your vehicle is equipped with an antilock braking system?

Check if the vehicle was manufactured after 1998.

Check if the vehicle was manufactured after 2000.

Check if the vehicle was manufactured after 2010.

ABS is still optional.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You are on a steep downgrade and have reached your safe speed of 40 mph. You would apply the service brakes until your speed drops to

25 mph

35 mph

30 mph

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An antilock braking system (ABS)

increases your normal braking capability.

decreases your normal braking capability.

activates when your wheels are about to lock up.

shortens your stopping distance.

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