MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Driving Test
North Carolina
North Carolina CDL Air Brakes 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Q.1
Submit
What do air brakes use to make the brakes work?
Compressed air
Outside air
Non-compressed air
Q.2
Submit
When a brake pedal is pressed and the S-cam is turned, the S-cam:
Presses the brake shoes against the inside of the brake drum.
Tightens the brake drum onto the axle.
Presses the brake lining against the wheel.
Releases air from the air tanks.
Q.3
Submit
____ make up the emergency brake system.
Only parts of the parking brake system
Only parts of the service brake system
Parts of the parking and service brake systems
Q.4
Submit
What can happen if the air pressure gets too low in an air brake system?
The brakes may squeak.
The brakes may stop working.
The brakes may be sluggish.
Q.5
Submit
On trucks and buses, where are ABS malfunction lamps located?
On the driver’s door
On the instrument panel
On the outside of the vehicle by the passenger’s door
Under the hood
Q.6
Submit
During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:
3 psi in one minute.
6 psi in one minute.
8 psi in one minute.
4 psi in one minute.
Q.7
Submit
When leaving your vehicle unattended:
The parking brake must be always be used.
The parking brake should never be used.
Windows in the cab should be lowered.
Q.8
Submit
The emergency brake system uses:
Only parts of the parking brake system.
Only parts of the service brake system.
Parts of both the parking and service brake systems.
Only parts unique to the emergency brake system.
Q.9
Submit
Both systems in a dual air brake systems share:
Air tanks.
Hoses.
Air lines.
An air compressor.
Q.10
Submit
A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.
Green
Yellow
Orange
White
Q.11
Submit
The brake pedal is part of which braking system?
The service brake system
The parking brake system
The emergency brake system
The auxiliary brake system
Q.12
Submit
When traveling down a steep downgrade:
The air brakes should be used.
Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
The vehicle should be continually downshifted in the place of using the brakes.
The vehicle should be driven on the shoulder.
Q.13
Submit
While driving, spring brakes are generally held in place by:
Air pressure.
Chocks.
Foundation brakes.
Sturdy ties.
Q.14
Submit
How is the parking brake released?
By tapping the brake pedal three times
By pushing in the brake control knob
By starting the vehicle
By tapping the accelerator twice
Q.15
Submit
When only the tractor is equipped with an Anti-Lock Braking System (ABS):
There is a decreased risk of jackknifing.
There is an increased risk of jackknifing.
The brakes will not work as effectively as they would without ABS.
The brakes will become more sensitive.
Q.16
Submit
During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:
10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.
Q.17
Submit
How is water and compressor oil removed from the bottom of an air storage tank?
The water and oil are siphoned out of the tank.
A drain valve is opened to remove the water and oil from the tank.
The water and oil are removed automatically as the brakes are used.
A sponge is used to soak up the water and oil.
Q.18
Submit
An air compressor governor will stop the compressor from pumping air once the air tanks have an air pressure level of:
125 psi.
100 psi.
150 psi.
80 psi.
Q.19
Submit
The most common type of foundation brake used is the:
S-cam drum brake.
C-cam drum brake.
G-cam disc brake.
P-cam disc brake.
Q.20
Submit
Truck tractors with air brakes built on or after March 1, 1997 must have:
An Anti-Lock Braking System (ABS).
Bluetooth.
GPS.
A rear back-up camera.
Q.21
Submit
The parking brake should be:
Used whenever you park your vehicle.
Used while driving.
Set when driving in bad weather.
Removed.
Q.22
Submit
In a dual air brake system:
Each system has separate air tanks, hoses, and lines.
The systems share air tanks, but each has its own separate hoses and lines.
Each system uses the same lines and hoses.
One system is the main braking system and a second system is ready to be used if the first one fails.
Q.23
Submit
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.
Q.24
Submit
When traveling down a steep downgrade, the best way to use your brakes is to:
Ride the brakes all the way down the hill.
Apply the brakes for a few seconds, then release the brakes for a few seconds. Continue to repeat these steps as you travel down the hill.
Apply the brakes only near the bottom of the downgrade.
Apply consistent pressure to the brake pedal all the way down the hill.
Q.25
Submit
Foundation brakes are used:
Only at the front wheels.
Only at the rear wheels.
Only at the driver’s side wheels.
At each wheel.
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page