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 | remove oil from the air lines |
B | remove fuel from the air lines |
C | reduce the risk of ice in the air brake valves |
D | evaporate any alcohol, which can damage the brake system |
Question 2 |
A | Water and compressor oil. |
B | Dust and water. |
C | Dust and compressor oil. |
D | Compressed air does not contain any of these substances. |
Question 3 |
A | disc brake, parking brake systems |
B | service brake, emergency brake systems |
C | disc brake, emergency brake systems |
D | service brake, parking brake systems |
Question 4 |
A | When the combined weight of your truckload and vehicle exceeds five tons. |
B | When the brakes are hot. |
C | When the air pressure is low. |
D | When the temperature is below freezing. |
Question 5 |
A | Pump the brake pedal hard until you come to a stop. |
B | Safely bring the automobile to a stop while you still have control over the brakes. |
C | Check your air pressure gauge and drive at highway speeds. |
D | Stay calm and wait for the air brakes to come on automatically. |
Question 6 |
A | specialized brakes only to be used during warm weather |
B | the spring that is attached to the brake pedal |
C | springs that press the brakes on to stop the vehicle if the air brakes leak out |
D | used for parking |
Question 7 |
A | wedge |
B | s-cam drum |
C | shoe |
D | disc |
Question 8 |
A | None of these. |
B | To let you know how much oxygen is in the air tanks. |
C | To let you know how much water is in the air tank. |
D | To let you know how much diesel fuel is in the vehicle. |
Question 9 |
A | all of these. |
B | bolted securely to the wheels. |
C | located on either end of the vehicle's axles. |
D | used to hold the brake shoes and linings. |
Question 10 |
A | Yes. |
B | Only if they are disc brakes. |
C | Only if they are drum brakes. |
D | No. |
Question 11 |
A | two, sixty |
B | one, sixty |
C | one, thirty |
D | three, sixty |
Question 12 |
A | compressed gas |
B | nitrogen and oxygen |
C | compressed air |
D | oxygen and helium |
Question 13 |
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 14 |
A | Once a day. |
B | Once a week. |
C | Every 1,000 miles. |
D | Before every trip. |
Question 15 |
A | True |
B | False |
Question 16 |
A | When the compressor shuts off between 70 to 90 psi. |
B | When pressure increases from 50 to 75 psi within three minutes. |
C | When the governor switch stops between 75 to 90 psi. |
D | When pressure increases from 85 to 100 psi within 45 seconds. |
Question 17 |
A | coil, boots |
B | pressure valve, boots |
C | s-cam, shoes |
D | valve spring, shoes |
Question 18 |
A | is known as an official vehicle inspection. |
B | applies and releases the vehicle's brakes using the brake pedal. |
C | is only found on automobiles with hydraulic brakes. |
D | is only on automobiles with hydraulic brakes. |
Question 19 |
A | The air pressure has exceeded 150 psi. |
B | There is way too much air in the air compressor. |
C | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
D | All of these. |
Question 20 |
A | Nothing will happen. |
B | You will still have some air pressure left in the air tanks. |
C | You will instantly lose braking power. |
D | Your brakes will instantly lock up. |
Question 21 |
A | brake system |
B | storage tanks |
C | air tank drains |
D | hydraulic brakes |
Question 22 |
A | air tank drain. |
B | governor. |
C | safety valve. |
D | application pressure gauge. |
Question 23 |
A | letting up on the brake pedal |
B | activating the parking brake |
C | activating the emergency brake |
D | pushing down on the brake pedal |
Question 24 |
A | The service brake system, manual brake system, and disc brake system. |
B | The disc brake system, drum brake system, and foundation 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 25 |
A | 200 |
B | 150 |
C | 125 |
D | 175 |
← | 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 | oxygen and helium |
B | compressed air |
C | compressed gas |
D | nitrogen and oxygen |
Question 2 |
A | Once a week. |
B | Before every trip. |
C | Once a day. |
D | Every 1,000 miles. |
Question 3 |
A | s-cam drum |
B | disc |
C | wedge |
D | shoe |
Question 4 |
A | The air pressure has exceeded 150 psi. |
B | There is way too much air in the air compressor. |
C | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
D | All of these. |
Question 5 |
A | To let you know how much water is in the air tank. |
B | To let you know how much oxygen is in the air tanks. |
C | None of these. |
D | To let you know how much diesel fuel is in the vehicle. |
Question 6 |
A | Yes. |
B | No. |
C | Only if they are disc brakes. |
D | Only if they are drum brakes. |
Question 7 |
A | safety valve. |
B | application pressure gauge. |
C | governor. |
D | air tank drain. |
Question 8 |
A | Your brakes will instantly lock up. |
B | You will instantly lose braking power. |
C | Nothing will happen. |
D | You will still have some air pressure left in the air tanks. |
Question 9 |
A | True |
B | False |
Question 10 |
A | applies and releases the vehicle's brakes using the brake pedal. |
B | is only on automobiles with hydraulic brakes. |
C | is known as an official vehicle inspection. |
D | is only found on automobiles with hydraulic brakes. |
Question 11 |
A | activating the emergency brake |
B | letting up on the brake pedal |
C | pushing down on the brake pedal |
D | activating the parking brake |
Question 12 |
A | 125 |
B | 150 |
C | 200 |
D | 175 |
Question 13 |
A | prevent them from freezing during cold temperatures. |
B | prevent someone from moving the vehicle. |
C | drain oil and moisture from the tank. |
D | completely empty air out of the tank. |
Question 14 |
A | remove oil from the air lines |
B | evaporate any alcohol, which can damage the brake system |
C | reduce the risk of ice in the air brake valves |
D | remove fuel from the air lines |
Question 15 |
A | Safely bring the automobile to a stop while you still have control over the brakes. |
B | Check your air pressure gauge and drive at highway speeds. |
C | Stay calm and wait for the air brakes to come on automatically. |
D | Pump the brake pedal hard until you come to a stop. |
Question 16 |
A | one, sixty |
B | three, sixty |
C | two, sixty |
D | one, thirty |
Question 17 |
A | air tank drains |
B | storage tanks |
C | hydraulic brakes |
D | brake system |
Question 18 |
A | valve spring, shoes |
B | s-cam, shoes |
C | coil, boots |
D | pressure valve, boots |
Question 19 |
A | used for parking |
B | springs that press the brakes on to stop the vehicle if the air brakes leak out |
C | the spring that is attached to the brake pedal |
D | specialized brakes only to be used during warm weather |
Question 20 |
A | all of these. |
B | used to hold the brake shoes and linings. |
C | bolted securely to the wheels |
D | located on either end of the vehicle's axles. |
Question 21 |
A | When pressure increases from 50 to 75 psi within three minutes. |
B | When the governor switch stops between 75 to 90 psi. |
C | When pressure increases from 85 to 100 psi within 45 seconds. |
D | When the compressor shuts off between 70 to 90 psi. |
Question 22 |
A | The emergency brake system, parking brake system, and foundation brake system. |
B | The disc brake system, drum brake system, and foundation brake system. |
C | The service brake system, manual brake system, and disc brake system. |
D | The parking brake system, service brake system, and emergency brake system. |
Question 23 |
A | service brake, parking brake systems |
B | disc brake, emergency brake systems |
C | disc brake, parking brake systems |
D | service brake, emergency brake systems |
Question 24 |
A | When the brakes are hot. |
B | When the combined weight of your truckload and vehicle exceeds five tons. |
C | When the air pressure is low. |
D | When the temperature is below freezing. |
Question 25 |
A | Dust and water. |
B | Compressed air does not contain any of these substances. |
C | Dust and compressor oil. |
D | Water and compressor oil. |
← | 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