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