AIR BRAKES CDL PRACTICE TEST - GEORGIA
11.
The s-cam forces the brake shoes away from one another and presses them against the inside of the brake drum. It is called the s-cam because:
|
"S" stands for "Shoes".
|
|
|
it is a safe-driving brake.
|
|
|
it applies a "Shock" to the brakes.
|
|
|
it is shaped like the letter "S".
|
12.
Air tank drains:
|
are used to move air to the brakes.
|
|
|
protect the tanks and the rest of the system from too much pressure.
|
|
|
should not be used in wet weather.
|
|
|
are used to remove water and oil from the air tanks.
|
13.
The braking power of the spring brakes:
|
is not affected by the air pressure level.
|
|
|
depends on the brakes being in adjustment.
|
|
|
is not affected by the condition of the service brakes.
|
|
|
All of the above.
|
14.
If your brakes fail while you are driving on a downgrade, you should:
|
immediately start looking outside your vehicle for something to stop it.
|
|
|
take the least hazardous escape route you can.
|
|
|
use an escape ramp if it's available.
|
|
|
All of the above.
|
15.
Some air brake systems have an alcohol evaporator. Checking the alcohol container and filling it up as necessary:
|
reduces the risk of having an accident due to drowsy driving.
|
|
|
helps keep the engine cool, as well as lubricating it.
|
|
|
helps you avoid wheel lock up.
|
|
|
reduces the risk of ice in air brake valves during cold weather.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More