Tennessee Air Brakes Practice Test
This is our Tennessee 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 | 200 |
B | 125 |
C | 150 |
D | 175 |
Question 2 |
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 3 |
A | To let you know how much diesel fuel is in the vehicle. |
B | To let you know how much water is in the air tank. |
C | None of these. |
D | To let you know how much oxygen is in the air tanks. |
Question 4 |
A | service brake, parking brake systems |
B | disc brake, emergency brake systems |
C | service brake, emergency brake systems |
D | disc brake, parking brake systems |
Question 5 |
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 6 |
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 7 |
A | Once a week. |
B | Before every trip. |
C | Once a day. |
D | Every 1,000 miles. |
Question 8 |
A | springs that press the brakes on to stop the vehicle if the air brakes leak out |
B | specialized brakes only to be used during warm weather |
C | the spring that is attached to the brake pedal |
D | used for parking |
Question 9 |
A | When the combined weight of your truckload and vehicle exceeds five tons. |
B | When the temperature is below freezing. |
C | When the brakes are hot. |
D | When the air pressure is low. |
Question 10 |
A | nitrogen and oxygen |
B | compressed gas |
C | oxygen and helium |
D | compressed air |
Question 11 |
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 12 |
A | Check your air pressure gauge and drive at highway speeds. |
B | Safely bring the automobile to a stop while you still have control over the brakes. |
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 13 |
A | False |
B | True |
Question 14 |
A | drain oil and moisture from the tank. |
B | prevent them from freezing during cold temperatures. |
C | prevent someone from moving the vehicle. |
D | completely empty air out of the tank. |
Question 15 |
A | coil, boots |
B | pressure valve, boots |
C | s-cam, shoes |
D | valve spring, shoes |
Question 16 |
A | three, sixty |
B | two, sixty |
C | one, sixty |
D | one, thirty |
Question 17 |
A | activating the parking brake |
B | letting up on the brake pedal |
C | activating the emergency brake |
D | pushing down on the brake pedal |
Question 18 |
A | air tank drain. |
B | safety valve. |
C | governor. |
D | application pressure gauge. |
Question 19 |
A | Compressed air does not contain any of these substances. |
B | Dust and compressor oil. |
C | Dust and water. |
D | Water and compressor oil. |
Question 20 |
A | is only on automobiles with hydraulic brakes. |
B | is only found on automobiles with hydraulic brakes. |
C | applies and releases the vehicle's brakes using the brake pedal. |
D | is known as an official vehicle inspection. |
Question 21 |
A | shoe |
B | s-cam drum |
C | wedge |
D | disc |
Question 22 |
A | located on either end of the vehicle's axles. |
B | used to hold the brake shoes and linings. |
C | bolted securely to the wheels. |
D | all of these. |
Question 23 |
A | Yes. |
B | Only if they are disc brakes. |
C | Only if they are drum brakes. |
D | No. |
Question 24 |
A | remove oil from the air lines |
B | reduce the risk of ice in the air brake valves |
C | evaporate any alcohol, which can damage the brake system |
D | remove fuel from the air lines |
Question 25 |
A | hydraulic brakes |
B | air tank drains |
C | brake system |
D | storage tanks |
← | 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 | two, sixty |
B | three, sixty |
C | one, thirty |
D | one, sixty |
Question 2 |
A | service brake, emergency brake systems |
B | service brake, parking brake systems |
C | disc brake, emergency brake systems |
D | disc brake, parking brake systems |
Question 3 |
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 4 |
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 5 |
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 6 |
A | air tank drain. |
B | application pressure gauge. |
C | safety valve. |
D | governor. |
Question 7 |
A | Dust and water. |
B | Water and compressor oil. |
C | Dust and compressor oil. |
D | Compressed air does not contain any of these substances. |
Question 8 |
A | All of these. |
B | The air pressure has exceeded 150 psi. |
C | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
D | There is way too much air in the air compressor. |
Question 9 |
A | False |
B | True |
Question 10 |
A | When the compressor shuts off between 70 to 90 psi. |
B | When pressure increases from 85 to 100 psi within 45 seconds. |
C | When the governor switch stops between 75 to 90 psi. |
D | When pressure increases from 50 to 75 psi within three minutes. |
Question 11 |
A | used for parking |
B | specialized brakes only to be used during warm weather |
C | the spring that is attached to the brake pedal |
D | springs that press the brakes on to stop the vehicle if the air brakes leak out |
Question 12 |
A | remove fuel from the air lines |
B | remove oil 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 13 |
A | wedge |
B | s-cam drum |
C | disc |
D | shoe |
Question 14 |
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 15 |
A | Yes. |
B | Only if they are drum brakes. |
C | No. |
D | Only if they are disc brakes. |
Question 16 |
A | s-cam, shoes |
B | valve spring, shoes |
C | pressure valve, boots |
D | coil, boots |
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 oxygen is in the air tanks. |
D | To let you know how much water is in the air tank. |
Question 18 |
A | 125 |
B | 175 |
C | 200 |
D | 150 |
Question 19 |
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 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 | Every 1,000 miles. |
B | Before every trip. |
C | Once a day. |
D | Once a week. |
Question 22 |
A | nitrogen and oxygen |
B | compressed air |
C | compressed gas |
D | oxygen and helium |
Question 23 |
A | activating the emergency brake |
B | pushing down on the brake pedal |
C | letting up on the brake pedal |
D | activating the parking brake |
Question 24 |
A | applies and releases the vehicle's brakes using the brake pedal. |
B | is only found on automobiles with hydraulic brakes. |
C | is known as an official vehicle inspection. |
D | is only on automobiles with hydraulic brakes. |
Question 25 |
A | brake system |
B | storage tanks |
C | hydraulic brakes |
D | air tank drains |
← | 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 Tennessee CDL Practice Test