Questions appearing on this CDL practice test:
When you get ready to back under the semi-trailer you should line up:
Air lines on a combination vehicle are often color coded to keep them from getting mixed up. The emergency line is _____; the service line is _____.
Low underneath clearance vehicles can be risky at railroad crossings because
After you have coupled the trailer, you should start to raise the landing gear by using
At what angle do you hold your airline glad hands when connecting them?
If you do not do the final air brake check for air leaks and fix them before driving,
Which type of truck-trailer combination has the greatest chance of a "crack-the-whip" rollover?
Compared with a straight truck or bus, there are _______ things to inspect in combination vehicles.
If the trailer has antilock brakes (ABS) but the tractor doesn't,
The safety catch for the fifth wheel locking lever must be _____ for a coupling to be complete.
To drive a triple combination vehicle, you must have
Low underneath clearance vehicles can be risky at railroad crossings because
To test the tractor protection valve, charge the trailer air brake system, turn off the engine, and
Under good driving conditions, you should leave at least one second of space between your vehicle and the vehicle ahead for every ___ feet of your vehicle's length.
If you do not do the final air brake check for air leaks and fix them before driving,
What is a tractor jackknife?
A tractor with a(n) _______ trailer requires the shortest amount of stopping distance.
Air and electrical lines from the tractor to the trailer should be
You should use chocks when parking a trailer without spring brakes because
