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