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