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