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