Washington Air Brakes Practice Test
This is our Washington 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 | True |
B | False |
Question 2 |
A | used to hold the brake shoes and linings. |
B | located on either end of the vehicle's axles. |
C | all of these. |
D | bolted securely to the wheels. |
Question 3 |
A | s-cam drum |
B | disc |
C | wedge |
D | shoe |
Question 4 |
A | 175 |
B | 150 |
C | 200 |
D | 125 |
Question 5 |
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 6 |
A | Yes. |
B | No. |
C | Only if they are disc brakes. |
D | Only if they are drum brakes. |
Question 7 |
A | three, sixty |
B | one, sixty |
C | one, thirty |
D | two, sixty |
Question 8 |
A | is known as an official vehicle inspection. |
B | is only found on automobiles with hydraulic brakes. |
C | is only on automobiles with hydraulic brakes. |
D | applies and releases the vehicle's brakes using the brake pedal. |
Question 9 |
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 parking brake system, service brake system, and emergency brake system. |
D | The emergency brake system, parking brake system, and foundation brake system. |
Question 10 |
A | safety valve. |
B | governor. |
C | air tank drain. |
D | application pressure gauge. |
Question 11 |
A | completely empty air out of the tank. |
B | prevent them from freezing during cold temperatures. |
C | prevent someone from moving the vehicle. |
D | drain oil and moisture from the tank. |
Question 12 |
A | Compressed air does not contain any of these substances. |
B | Dust and compressor oil. |
C | Water and compressor oil. |
D | Dust and water. |
Question 13 |
A | oxygen and helium |
B | nitrogen and oxygen |
C | compressed air |
D | compressed gas |
Question 14 |
A | hydraulic brakes |
B | air tank drains |
C | brake system |
D | storage tanks |
Question 15 |
A | Something is malfunctioning, and you should have the vehicle checked by a mechanic. |
B | All of these. |
C | There is way too much air in the air compressor. |
D | The air pressure has exceeded 150 psi. |
Question 16 |
A | activating the parking brake |
B | letting up on the brake pedal |
C | activating the emergency brake |
D | pushing down on the brake pedal |
Question 17 |
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 18 |
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 19 |
A | Once a day. |
B | Once a week. |
C | Every 1,000 miles. |
D | Before every trip. |
Question 20 |
A | When pressure increases from 85 to 100 psi within 45 seconds. |
B | When pressure increases from 50 to 75 psi within three minutes. |
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 | 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 22 |
A | s-cam, shoes |
B | pressure valve, boots |
C | valve spring, shoes |
D | coil, boots |
Question 23 |
A | specialized brakes only to be used during warm weather |
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 | used for parking |
Question 24 |
A | remove oil from the air lines |
B | reduce the risk of ice in the air brake valves |
C | remove fuel from the air lines |
D | evaporate any alcohol, which can damage the brake system |
Question 25 |
A | When the air pressure is low. |
B | When the brakes are hot. |
C | When the temperature is below freezing. |
D | When the combined weight of your truckload and vehicle exceeds five tons. |
← | 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 | air tank drain. |
B | safety valve. |
C | application pressure gauge. |
D | governor. |
Question 2 |
A | Once a week. |
B | Once a day. |
C | Before every trip. |
D | Every 1,000 miles. |
Question 3 |
A | all of these. |
B | located on either end of the vehicle's axles. |
C | bolted securely to the wheels |
D | used to hold the brake shoes and linings. |
Question 4 |
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 5 |
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 6 |
A | Pump the brake pedal hard until you come to a stop. |
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 | Check your air pressure gauge and drive at highway speeds. |
Question 7 |
A | hydraulic brakes |
B | storage tanks |
C | air tank drains |
D | brake system |
Question 8 |
A | To let you know how much water is in the air tank. |
B | To let you know how much diesel fuel is in the vehicle. |
C | None of these. |
D | To let you know how much oxygen is in the air tanks. |
Question 9 |
A | prevent them from freezing during cold temperatures. |
B | drain oil and moisture from the tank. |
C | completely empty air out of the tank. |
D | prevent someone from moving the vehicle. |
Question 10 |
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 11 |
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 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 | False |
B | True |
Question 14 |
A | 125 |
B | 200 |
C | 150 |
D | 175 |
Question 15 |
A | springs that press the brakes on to stop the vehicle if the air brakes leak out |
B | specialized brakes only to be used during warm weather |
C | the spring that is attached to the brake pedal |
D | used for parking |
Question 16 |
A | wedge |
B | s-cam drum |
C | disc |
D | shoe |
Question 17 |
A | nitrogen and oxygen |
B | compressed air |
C | oxygen and helium |
D | compressed gas |
Question 18 |
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 19 |
A | Only if they are disc brakes. |
B | Only if they are drum brakes. |
C | No. |
D | Yes. |
Question 20 |
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 21 |
A | letting up on the brake pedal |
B | activating the parking brake |
C | pushing down on the brake pedal |
D | activating the emergency brake |
Question 22 |
A | one, sixty |
B | one, thirty |
C | two, sixty |
D | three, sixty |
Question 23 |
A | When the compressor shuts off between 70 to 90 psi. |
B | When pressure increases from 50 to 75 psi within three minutes. |
C | When the governor switch stops between 75 to 90 psi. |
D | When pressure increases from 85 to 100 psi within 45 seconds. |
Question 24 |
A | service brake, parking brake systems |
B | service brake, emergency brake systems |
C | disc brake, parking brake systems |
D | disc brake, emergency brake systems |
Question 25 |
A | pressure valve, boots |
B | s-cam, shoes |
C | coil, boots |
D | valve spring, shoes |
← | 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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