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