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