Take Kansas CDL Combination Test 2

Kansas CDL Combination Test 2Practice mode

Question 1 of 20

QUESTION 1 / 20

When driving a tractor-trailer equipped with ABS, you should:

Choose one answer below.

AStop harder than you would otherwise.✓BUse extra braking force to ensure the ABS kicks in.✓CBrake as you normally would.✓DBrake using less pressure than you would otherwise use.✓

0 of 20 answered

When driving a tractor-trailer equipped with ABS, you should:

When glad hands are coupled, the seals should be pressed together at an angle of:

Before backing your tractor under the trailer, make sure your trailer brakes are:

If oil and water build up in your vehicle's air tanks, the brakes:

Trailers with low underneath clearance may be difficult to drive:

After coupling, there should be ____ between the upper and lower fifth wheel.

If you need to back your trailer but cannot back up in a straight path, you should:

After finishing a pre-trip inspection, you should:

While inspecting a coupling, you should go under the trailer and:

A tractor protection valve is:

If a trailer begins to skid, the driver should:

Simply changing lanes can cause:

What happens when the wheels of a trailer lock up?

What is a tractor protection valve?

A shut-off valve:

Air pressure in the ____ air line is controlled by either the foot brake or trailer hand brake.

Fully-loaded rigs:

Pull out the trailer air supply control to test:

To prevent a rollover, a driver should:

The service air line is attached to the: