Air Brakes - Arkansas Cdl

1 . How is the parking brake released?

By tapping on the brake pedal three times By pushing in the brake control knob By engaging the accelerator By tapping the accelerator twice Click Here Full Cheat Sheet

2 . When parking, you should not use the parking brake if:

The brakes are very hot. The brakes are very cold. There is snow on the ground. Take a FREE Practice Test Now

3 . Pressing and releasing a brake pedal unnecessarily can:

Release air faster than it can be replaced. Add more air to the braking system. Make the brake pedal more sensitive. Create a loud noise. Take a FREE Practice Test Now

4 . The service brake system:

Applies and releases the brakes when you press the brake pedal while driving normally. Applies and releases the parking brakes. Applies and releases the emergency brake. Applies and releases the axle brake. Take a FREE Practice Test Now

5 . The air storage tanks:

Hold only enough air for one braking cycle. Hold enough air for the brakes to be used several times if the compressor stops working. Do not hold air unless there is an emergency. Click Here Full Cheat Sheet

6 . If the low air pressure warning signal comes on, you should:

Continue driving, but have the brakes repaired within a week. Pull over and inspect the brakes. Phone a mechanic while driving. Take a FREE Practice Test Now

7 . Brake linings should be:

Loose. Free of oil. Soft. Take a FREE Practice Test Now

8 . When starting a vehicle with dual air brakes, pressure of ____ should be built up in the system before it is driven.

10 psi 25 psi 100 psi 200 psi Take a FREE Practice Test Now

9 . The air compressor governor controls:

When the air compressor pumps air into the air storage tanks. How fast air is pumped into the air storage tanks. The temperature of air pumped into the air storage tanks. The speed of the vehicle. Click Here Full Cheat Sheet

10 . If the brake pads rub against the brake drums and create too much heat:

The brakes will stick. The brakes will become extra sensitive. The brakes may stop working. The air compressor will kick on to cool the brakes. Take a FREE Practice Test Now

11 . If a vehicle has air brakes, the air compressor drive belt should be checked before each drive. In what condition should the belt be?

Loose Tight Cracked Bumpy Take a FREE Practice Test Now

12 . On newer vehicles, how do you put on the parking brake?

Move a lever to the right. Push in the yellow, diamond-shaped knob. Pull out the yellow, diamond-shaped knob. Pull up on the steering column. Take a FREE Practice Test Now

13 . A low air pressure warning signal:

Is not recommended on vehicles with air brakes. Is required on vehicles with air brakes. Is optional on vehicles with air brakes. Click Here Full Cheat Sheet

Study tip: Reduce your study time from hours to minutes with a DMV exam “Cheat Sheet” 99.2% of people who use the cheat sheet pass the FIRST TIME Click Here Full Cheat Sheet

14 . Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:

Are necessary for the proper function of the system. Should take up about 10 percent of the tank. Should be removed regularly. Take a FREE Practice Test Now

15 . In a vehicle with dual parking control valves, a separate air tank can be used:

To make the air brakes work more effectively. To temporarily release the spring brakes. To charge the brakes on the rear trailer. Take a FREE Practice Test Now

16 . If the low pressure warning signal activates while you are driving, you should:

Continue driving normally. Exit the road and park as soon as safely possible. Stop where you are and park. Put on your hazard lights and continue driving. Take a FREE Practice Test Now

17 . While driving, spring brakes are generally held in place by:

Air pressure. Chocks. Foundation brakes. Sturdy ties. Click Here Full Cheat Sheet

18 . If using the spring brakes while hauling a heavy load, a complete stop will:

Be impossible. Take a long time. Take a short amount of time. Damage the brakes. Take a FREE Practice Test Now

19 . When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:

Slack adjuster. Axle. Brake drum. Alcohol evaporator. Take a FREE Practice Test Now

20 . Air brakes use ____ to function.

Compressed air Liquid nitrogen Carbon dioxide Take a FREE Practice Test Now

21 . Vehicles with dual air brake systems:

Have air pressure in the braking system even when the vehicle is not running. Maintain some air pressure in the braking system when the vehicle is not running. Must be run to build air pressure to allow the brakes to operate properly. Maintain air pressure when shut off for periods of less than four hours. Click Here Full Cheat Sheet

22 . Brakes may get out of adjustment:

If they are too hot. In colder weather. If they are used. If they get wet. Take a FREE Practice Test Now

23 . Emergency brakes:

Are not required on vehicles with air brakes. Are required only on buses. Are required on all vehicles. Take a FREE Practice Test Now

24 . Brake fade is a result of:

Brakes being exposed to sunlight. Brakes being exposed to moisture. Excessive use of the brakes. Take a FREE Practice Test Now

25 . If using air tanks with manually operated drains, how often should you drain the tanks?

Every day Once a week Once a month Once every six months Click Here Full Cheat Sheet