Virginia Air Brakes Practice Test
This is our Virginia Air Brakes Practice Quiz and Practice Test compiled of 25 questions each. Each question is worth four points for a total of 100 possible points. A passing score is 80%.
The Air Brakes Practice Quiz reveals the correct answer during each question to help you study for the actual Air Brakes exam. The Air Brakes Practice Test doesn’t reveal the correct answers until the test is over.
The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window. It’s that easy.
Press the start button to begin your free Air Brakes Practice Quiz. Good luck!
Air Brakes CDL Practice Quiz
Question 1 |
A | False |
B | True |
Question 2 |
A | the spring that is attached to the brake pedal |
B | specialized brakes only to be used during warm weather |
C | used for parking |
D | springs that press the brakes on to stop the vehicle if the air brakes leak out |
Question 3 |
A | shoe |
B | disc |
C | wedge |
D | s-cam drum |
Question 4 |
A | air tank drain. |
B | application pressure gauge. |
C | safety valve. |
D | governor. |
Question 5 |
A | hydraulic brakes |
B | storage tanks |
C | brake system |
D | air tank drains |
Question 6 |
A | Stay calm and wait for the air brakes to come on automatically. |
B | Pump the brake pedal hard until you come to a stop. |
C | Safely bring the automobile to a stop while you still have control over the brakes. |
D | Check your air pressure gauge and drive at highway speeds. |
Question 7 |
A | Once a week. |
B | Before every trip. |
C | Once a day. |
D | Every 1,000 miles. |
Question 8 |
A | The disc brake system, drum brake system, and foundation brake system. |
B | The service brake system, manual brake system, and disc brake system. |
C | The emergency brake system, parking brake system, and foundation brake system. |
D | The parking brake system, service brake system, and emergency brake system. |
Question 9 |
A | 125 |
B | 175 |
C | 150 |
D | 200 |
Question 10 |
A | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
B | The air pressure has exceeded 150 psi. |
C | There is way too much air in the air compressor. |
D | All of these. |
Question 11 |
A | To let you know how much water is in the air tank. |
B | To let you know how much diesel fuel is in the vehicle. |
C | To let you know how much oxygen is in the air tanks. |
D | None of these. |
Question 12 |
A | used to hold the brake shoes and linings. |
B | located on either end of the vehicle's axles. |
C | bolted securely to the wheels. |
D | all of these. |
Question 13 |
A | activating the parking brake |
B | pushing down on the brake pedal |
C | activating the emergency brake |
D | letting up on the brake pedal |
Question 14 |
A | three, sixty |
B | one, thirty |
C | one, sixty |
D | two, sixty |
Question 15 |
A | drain oil and moisture from the tank. |
B | completely empty air out of the tank. |
C | prevent someone from moving the vehicle. |
D | prevent them from freezing during cold temperatures. |
Question 16 |
A | You will still have some air pressure left in the air tanks. |
B | Nothing will happen. |
C | You will instantly lose braking power. |
D | Your brakes will instantly lock up. |
Question 17 |
A | disc brake, parking brake systems |
B | service brake, parking brake systems |
C | disc brake, emergency brake systems |
D | service brake, emergency brake systems |
Question 18 |
A | Compressed air does not contain any of these substances. |
B | Water and compressor oil. |
C | Dust and water. |
D | Dust and compressor oil. |
Question 19 |
A | oxygen and helium |
B | compressed gas |
C | compressed air |
D | nitrogen and oxygen |
Question 20 |
A | pressure valve, boots |
B | s-cam, shoes |
C | valve spring, shoes |
D | coil, boots |
Question 21 |
A | When the governor switch stops between 75 to 90 psi. |
B | When the compressor shuts off between 70 to 90 psi. |
C | When pressure increases from 50 to 75 psi within three minutes. |
D | When pressure increases from 85 to 100 psi within 45 seconds. |
Question 22 |
A | Only if they are drum brakes. |
B | Only if they are disc brakes. |
C | No. |
D | Yes. |
Question 23 |
A | is only found on automobiles with hydraulic brakes. |
B | applies and releases the vehicle's brakes using the brake pedal. |
C | is known as an official vehicle inspection. |
D | is only on automobiles with hydraulic brakes. |
Question 24 |
A | When the air pressure is low. |
B | When the temperature is below freezing. |
C | When the combined weight of your truckload and vehicle exceeds five tons. |
D | When the brakes are hot. |
Question 25 |
A | reduce the risk of ice in the air brake valves |
B | remove fuel from the air lines |
C | evaporate any alcohol, which can damage the brake system |
D | remove oil from the air lines |
← | List | → |
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 |
End |
Remember, the Air Brakes Practice Test doesn’t reveal the correct answers until the test is over. The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window.
Press the start button to begin your free Air Brakes Practice Test. Good luck!
Air Brakes CDL Practice Test
Question 1 |
A | There is way too much air in the air compressor. |
B | The air pressure has exceeded 150 psi. |
C | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
D | All of these. |
Question 2 |
A | pushing down on the brake pedal |
B | activating the parking brake |
C | activating the emergency brake |
D | letting up on the brake pedal |
Question 3 |
A | Once a week. |
B | Before every trip. |
C | Every 1,000 miles. |
D | Once a day. |
Question 4 |
A | specialized brakes only to be used during warm weather |
B | springs that press the brakes on to stop the vehicle if the air brakes leak out |
C | used for parking |
D | the spring that is attached to the brake pedal |
Question 5 |
A | disc |
B | wedge |
C | shoe |
D | s-cam drum |
Question 6 |
A | used to hold the brake shoes and linings. |
B | bolted securely to the wheels |
C | located on either end of the vehicle's axles. |
D | all of these. |
Question 7 |
A | 175 |
B | 150 |
C | 200 |
D | 125 |
Question 8 |
A | Safely bring the automobile to a stop while you still have control over the brakes. |
B | Stay calm and wait for the air brakes to come on automatically. |
C | Pump the brake pedal hard until you come to a stop. |
D | Check your air pressure gauge and drive at highway speeds. |
Question 9 |
A | governor. |
B | air tank drain. |
C | safety valve. |
D | application pressure gauge. |
Question 10 |
A | When the brakes are hot. |
B | When the air pressure is low. |
C | When the combined weight of your truckload and vehicle exceeds five tons. |
D | When the temperature is below freezing. |
Question 11 |
A | prevent someone from moving the vehicle. |
B | prevent them from freezing during cold temperatures. |
C | drain oil and moisture from the tank. |
D | completely empty air out of the tank. |
Question 12 |
A | When pressure increases from 50 to 75 psi within three minutes. |
B | When the compressor shuts off between 70 to 90 psi. |
C | When the governor switch stops between 75 to 90 psi. |
D | When pressure increases from 85 to 100 psi within 45 seconds. |
Question 13 |
A | Nothing will happen. |
B | Your brakes will instantly lock up. |
C | You will instantly lose braking power. |
D | You will still have some air pressure left in the air tanks. |
Question 14 |
A | disc brake, parking brake systems |
B | disc brake, emergency brake systems |
C | service brake, parking brake systems |
D | service brake, emergency brake systems |
Question 15 |
A | air tank drains |
B | storage tanks |
C | brake system |
D | hydraulic brakes |
Question 16 |
A | The parking brake system, service brake system, and emergency brake system. |
B | The emergency brake system, parking brake system, and foundation brake system. |
C | The disc brake system, drum brake system, and foundation brake system. |
D | The service brake system, manual brake system, and disc brake system. |
Question 17 |
A | None of these. |
B | To let you know how much diesel fuel is in the vehicle. |
C | To let you know how much water is in the air tank. |
D | To let you know how much oxygen is in the air tanks. |
Question 18 |
A | one, thirty |
B | one, sixty |
C | two, sixty |
D | three, sixty |
Question 19 |
A | Dust and compressor oil. |
B | Dust and water. |
C | Water and compressor oil. |
D | Compressed air does not contain any of these substances. |
Question 20 |
A | nitrogen and oxygen |
B | compressed gas |
C | compressed air |
D | oxygen and helium |
Question 21 |
A | reduce the risk of ice in the air brake valves |
B | remove fuel from the air lines |
C | remove oil from the air lines |
D | evaporate any alcohol, which can damage the brake system |
Question 22 |
A | True |
B | False |
Question 23 |
A | Yes. |
B | Only if they are disc brakes. |
C | Only if they are drum brakes. |
D | No. |
Question 24 |
A | is known as an official vehicle inspection. |
B | is only on automobiles with hydraulic brakes. |
C | is only found on automobiles with hydraulic brakes. |
D | applies and releases the vehicle's brakes using the brake pedal. |
Question 25 |
A | coil, boots |
B | s-cam, shoes |
C | valve spring, shoes |
D | pressure valve, boots |
← | List | → |
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 |
End |
Back to Virginia CDL Practice Test