Minnesota Air Brakes Practice Test
This is our Minnesota 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 | 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 2 |
A | one, sixty |
B | two, sixty |
C | three, sixty |
D | one, thirty |
Question 3 |
A | 150 |
B | 125 |
C | 175 |
D | 200 |
Question 4 |
A | compressed air |
B | nitrogen and oxygen |
C | compressed gas |
D | oxygen and helium |
Question 5 |
A | wedge |
B | shoe |
C | disc |
D | s-cam drum |
Question 6 |
A | is only found on automobiles with hydraulic brakes. |
B | applies and releases the vehicle's brakes using the brake pedal. |
C | is known as an official vehicle inspection. |
D | is only on automobiles with hydraulic brakes. |
Question 7 |
A | prevent them from freezing during cold temperatures. |
B | drain oil and moisture from the tank. |
C | prevent someone from moving the vehicle. |
D | completely empty air out of the tank. |
Question 8 |
A | s-cam, shoes |
B | pressure valve, boots |
C | valve spring, shoes |
D | coil, boots |
Question 9 |
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 10 |
A | You will instantly lose braking power. |
B | Nothing will happen. |
C | You will still have some air pressure left in the air tanks. |
D | Your brakes will instantly lock up. |
Question 11 |
A | True |
B | False |
Question 12 |
A | remove fuel from the air lines |
B | remove oil from the air lines |
C | evaporate any alcohol, which can damage the brake system |
D | reduce the risk of ice in the air brake valves |
Question 13 |
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 14 |
A | Once a week. |
B | Every 1,000 miles. |
C | Once a day. |
D | Before every trip. |
Question 15 |
A | When the temperature is below freezing. |
B | When the brakes are hot. |
C | When the combined weight of your truckload and vehicle exceeds five tons. |
D | When the air pressure is low. |
Question 16 |
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 17 |
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 | Stay calm and wait for the air brakes to come on automatically. |
D | Check your air pressure gauge and drive at highway speeds. |
Question 18 |
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 19 |
A | service brake, parking brake systems |
B | service brake, emergency brake systems |
C | disc brake, emergency brake systems |
D | disc brake, parking brake systems |
Question 20 |
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 21 |
A | used for parking |
B | springs that press the brakes on to stop the vehicle if the air brakes leak out |
C | the spring that is attached to the brake pedal |
D | specialized brakes only to be used during warm weather |
Question 22 |
A | Only if they are drum brakes. |
B | Yes. |
C | No. |
D | Only if they are disc brakes. |
Question 23 |
A | safety valve. |
B | air tank drain. |
C | governor. |
D | application pressure gauge. |
Question 24 |
A | bolted securely to the wheels. |
B | used to hold the brake shoes and linings. |
C | all of these. |
D | located on either end of the vehicle's axles. |
Question 25 |
A | hydraulic brakes |
B | storage tanks |
C | brake system |
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 |
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 | Before every trip. |
B | Every 1,000 miles. |
C | Once a week. |
D | Once a day. |
Question 2 |
A | used for parking |
B | springs that press the brakes on to stop the vehicle if the air brakes leak out |
C | specialized brakes only to be used during warm weather |
D | the spring that is attached to the brake pedal |
Question 3 |
A | valve spring, shoes |
B | pressure valve, boots |
C | coil, boots |
D | s-cam, shoes |
Question 4 |
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 5 |
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 6 |
A | service brake, parking brake systems |
B | disc brake, parking brake systems |
C | disc brake, emergency brake systems |
D | service brake, emergency brake systems |
Question 7 |
A | True |
B | False |
Question 8 |
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 9 |
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 10 |
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 11 |
A | application pressure gauge. |
B | air tank drain. |
C | safety valve. |
D | governor. |
Question 12 |
A | The service brake system, manual brake system, and disc brake system. |
B | The emergency brake system, parking brake system, and foundation 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 13 |
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 14 |
A | one, thirty |
B | three, sixty |
C | one, sixty |
D | two, sixty |
Question 15 |
A | bolted securely to the wheels |
B | located on either end of the vehicle's axles. |
C | used to hold the brake shoes and linings. |
D | all of these. |
Question 16 |
A | letting up on the brake pedal |
B | pushing down on the brake pedal |
C | activating the parking brake |
D | activating the emergency brake |
Question 17 |
A | When the brakes are hot. |
B | When the air pressure is low. |
C | When the temperature is below freezing. |
D | When the combined weight of your truckload and vehicle exceeds five tons. |
Question 18 |
A | Yes. |
B | Only if they are drum brakes. |
C | Only if they are disc brakes. |
D | No. |
Question 19 |
A | brake system |
B | air tank drains |
C | hydraulic brakes |
D | storage tanks |
Question 20 |
A | reduce the risk of ice in the air brake valves |
B | remove oil from the air lines |
C | remove fuel from the air lines |
D | evaporate any alcohol, which can damage the brake system |
Question 21 |
A | compressed air |
B | nitrogen and oxygen |
C | compressed gas |
D | oxygen and helium |
Question 22 |
A | 200 |
B | 125 |
C | 175 |
D | 150 |
Question 23 |
A | s-cam drum |
B | disc |
C | shoe |
D | wedge |
Question 24 |
A | prevent someone from moving the vehicle. |
B | drain oil and moisture from the tank. |
C | completely empty air out of the tank. |
D | prevent them from freezing during cold temperatures. |
Question 25 |
A | is only found on automobiles with hydraulic brakes. |
B | applies and releases the vehicle's brakes using the brake pedal. |
C | is known as an official vehicle inspection. |
D | is only on automobiles with hydraulic brakes. |
← | 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 Minnesota CDL Practice Test