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