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