Pennsylvania Air Brakes Practice Test
This is our Pennsylvania 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 | safety valve. |
B | application pressure gauge. |
C | governor. |
D | air tank drain. |
Question 2 |
A | 125 |
B | 175 |
C | 150 |
D | 200 |
Question 3 |
A | compressed air |
B | compressed gas |
C | oxygen and helium |
D | nitrogen and oxygen |
Question 4 |
A | Check your air pressure gauge and drive at highway speeds. |
B | Stay calm and wait for the air brakes to come on automatically. |
C | Safely bring the automobile to a stop while you still have control over the brakes. |
D | Pump the brake pedal hard until you come to a stop. |
Question 5 |
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 6 |
A | False |
B | True |
Question 7 |
A | disc brake, emergency brake systems |
B | service brake, emergency brake systems |
C | service brake, parking brake systems |
D | disc brake, parking brake systems |
Question 8 |
A | prevent them from freezing during cold temperatures. |
B | completely empty air out of the tank. |
C | drain oil and moisture from the tank. |
D | prevent someone from moving the vehicle. |
Question 9 |
A | Nothing will happen. |
B | You will instantly lose braking power. |
C | You will still have some air pressure left in the air tanks. |
D | Your brakes will instantly lock up. |
Question 10 |
A | Before every trip. |
B | Once a week. |
C | Every 1,000 miles. |
D | Once a day. |
Question 11 |
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 12 |
A | remove oil from the air lines |
B | remove fuel 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 | 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 14 |
A | Dust and water. |
B | Compressed air does not contain any of these substances. |
C | Water and compressor oil. |
D | Dust and compressor oil. |
Question 15 |
A | s-cam drum |
B | disc |
C | wedge |
D | shoe |
Question 16 |
A | brake system |
B | storage tanks |
C | air tank drains |
D | hydraulic brakes |
Question 17 |
A | Only if they are drum brakes. |
B | Only if they are disc brakes. |
C | Yes. |
D | No. |
Question 18 |
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 19 |
A | When pressure increases from 50 to 75 psi within three minutes. |
B | When the governor switch stops between 75 to 90 psi. |
C | When pressure increases from 85 to 100 psi within 45 seconds. |
D | When the compressor shuts off between 70 to 90 psi. |
Question 20 |
A | one, thirty |
B | two, sixty |
C | one, sixty |
D | three, sixty |
Question 21 |
A | applies and releases the vehicle's brakes using the brake pedal. |
B | is known as an official vehicle inspection. |
C | is only found on automobiles with hydraulic brakes. |
D | is only on automobiles with hydraulic brakes. |
Question 22 |
A | When the air pressure is low. |
B | When the temperature is below freezing. |
C | When the combined weight of your truckload and vehicle exceeds five tons. |
D | When the brakes are hot. |
Question 23 |
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 24 |
A | coil, boots |
B | pressure valve, boots |
C | s-cam, shoes |
D | valve spring, shoes |
Question 25 |
A | All of these. |
B | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
C | There is way too much air in the air compressor. |
D | The air pressure has exceeded 150 psi. |
← | 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 | 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 2 |
A | Yes. |
B | Only if they are drum brakes. |
C | Only if they are disc brakes. |
D | No. |
Question 3 |
A | is only found on automobiles with hydraulic brakes. |
B | applies and releases the vehicle's brakes using the brake pedal. |
C | is only on automobiles with hydraulic brakes. |
D | is known as an official vehicle inspection. |
Question 4 |
A | prevent someone from moving the vehicle. |
B | drain oil and moisture from the tank. |
C | prevent them from freezing during cold temperatures. |
D | completely empty air out of the tank. |
Question 5 |
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 6 |
A | Dust and water. |
B | Compressed air does not contain any of these substances. |
C | Dust and compressor oil. |
D | Water and compressor oil. |
Question 7 |
A | the spring that is attached to the brake pedal |
B | specialized brakes only to be used during warm weather |
C | used for parking |
D | springs that press the brakes on to stop the vehicle if the air brakes leak out |
Question 8 |
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 9 |
A | brake system |
B | hydraulic brakes |
C | storage tanks |
D | air tank drains |
Question 10 |
A | s-cam drum |
B | shoe |
C | wedge |
D | disc |
Question 11 |
A | air tank drain. |
B | governor. |
C | safety valve. |
D | application pressure gauge. |
Question 12 |
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 13 |
A | valve spring, shoes |
B | s-cam, shoes |
C | pressure valve, boots |
D | coil, boots |
Question 14 |
A | True |
B | False |
Question 15 |
A | You will instantly lose braking power. |
B | Nothing will happen. |
C | Your brakes will instantly lock up. |
D | You will still have some air pressure left in the air tanks. |
Question 16 |
A | reduce the risk of ice in the air brake valves |
B | remove fuel from the air lines |
C | evaporate any alcohol, which can damage the brake system |
D | remove oil from the air lines |
Question 17 |
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 18 |
A | Once a week. |
B | Once a day. |
C | Before every trip. |
D | Every 1,000 miles. |
Question 19 |
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 85 to 100 psi within 45 seconds. |
D | When pressure increases from 50 to 75 psi within three minutes. |
Question 20 |
A | all of these. |
B | used to hold the brake shoes and linings. |
C | bolted securely to the wheels |
D | located on either end of the vehicle's axles. |
Question 21 |
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 22 |
A | activating the emergency brake |
B | letting up on the brake pedal |
C | activating the parking brake |
D | pushing down on the brake pedal |
Question 23 |
A | 125 |
B | 200 |
C | 175 |
D | 150 |
Question 24 |
A | compressed air |
B | oxygen and helium |
C | nitrogen and oxygen |
D | compressed gas |
Question 25 |
A | three, sixty |
B | one, sixty |
C | two, 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 |
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