VA CDL AIR BRAKES PRACTICE TEST
View instructions
The air brakes endorsement applies to applicants who wish to drive a vehicle with air brakes in Class A, B, or C CDL. To drive a vehicle with air brakes, you must pass the air brake component of the Virginia CDL knowledge test. The VA CDL air brakes test consists of 25 questions, and you'll need at least 20 correct answers to pass (80%). The test covers the information found in the air brakes section of the Virginia CDL Manual. Take this VA CDL practice test now to prepare for the actual air brakes test!
1.
Which of the following is NOT TRUE? When you drive a tractor-trailer combination with ABS, you should:
|
drive slower to keep your vehicle in a straight line.
|
|
|
monitor your tractor and trailer as you slow down, and if it is safe to do so, back off the brakes to stay in control.
|
|
|
brake the same way, regardless of whether you have ABS on the tractor, the trailer, or both.
|
2.
You should always try to back toward the driver's side because:
|
backing toward the left side is more dangerous.
|
|
|
you can watch the rear of your vehicle out the side window.
|
|
|
None of the above.
|
3.
Air tanks must be drained because:
|
if one air system is low on pressure, the rear brakes will not be operating fully.
|
|
|
compressed air usually has some water in it. The water can freeze in cold
weather and cause brake failure.
|
|
|
when you push the brake pedal, air is let into each brake chamber.
|
4.
Some air brake systems have an alcohol evaporator to:
|
reduce the danger of slipping.
|
|
|
reduce the stopping power of the vehicle.
|
|
|
prevent ice from forming in the brake system.
|
5.
Antifreeze:
|
helps the engine only under hot conditions.
|
|
|
helps the engine only when the temperature is below freezing.
|
|
|
helps the engine under hot conditions as well as cold conditions.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More