Not Sure You Will Pass?
Get a Pass Guarantee
Get a Pass Guarantee
UPGRADE TO CDL PREMIUM
1.
Truck tractors with air brakes built after March 1, 1997, are required to be equipped with:
|
anti-lock brakes.
|
|
|
a rear backup camera.
|
|
|
hydraulic brakes.
|
2.
A dual air brake system:
|
has two separate air brake systems, which use a single set of brake controls.
|
|
|
has a single air brake system, which uses a single set of brake controls.
|
|
|
has two separate air brake systems, which use two separate sets of brake controls.
|
3.
The supply pressure gauges tell you how much air pressure:
|
is in the air tanks.
|
|
|
you are applying to the brakes.
|
|
|
is going to the brake chambers.
|
4.
With brake drums, if brakes become too hot:
|
your ABS will malfunction.
|
|
|
the brakes may stop working.
|
|
|
the brakes will supply too much power to the drive wheels.
|
5.
If the spring brakes do not release when you push the trailer air supply control, you should:
|
check the electrical cables.
|
|
|
rev or
lug the engine.
|
|
|
check the air line connections.
|
6.
If stopped on a hill, how can you start moving without rolling back?
|
Partly engage the clutch before you take your right foot off the brake, put on the parking brake if necessary.
|
|
|
Release the parking brake before you have applied enough engine power to keep from rolling back.
|
|
|
Press on the gas pedal, even if you have to roll back a little.
|
7.
The __________ keeps air from going out if the air compressor develops a leak.
|
emergency relay valve
|
|
|
tractor protection valve
|
|
|
one-way check valve
|
8.
The tire load rating is stated:
|
inside the suspension system.
|
|
|
on each axle.
|
|
|
on the side of each tire.
|
9.
Before transporting sealed loads, you should check that:
|
the seal numbers match the placard numbers.
|
|
|
the load can be inspected.
|
|
|
the load is properly secured.
|
10.
If your vehicle is hydroplaning, you should:
|
use the brakes to slow down.
|
|
|
accelerate to get through the water as quickly as possible.
|
|
|
release the accelerator and push in the clutch.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More
Rate This Free Test