DMV Class B License Test Air Brakes Endorsement.pdf file:///C:/Users/HP/Desktop/New%20folder%20(3)/DMV%20Class
DMV Class B License Test Air Brakes
Endorsement Questions & Answers
1. Excessive use of the service breaks results in overheating, which can leadto:
a) Improper adjustment of the S-cam
b) Increased contact between the brake drums and brake linings
c) Expansion of the brake drums
Answer: c) Expansion of the brake drums
2. If air pressure does NOT build up to normal within the correct amount of
time:
a) You should be ready to use your parking brake to help stop
b) The alcohol container may be low
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,DMV Class B License Test Air Brakes Endorsement.pdf file:///C:/Users/HP/Desktop/New%20folder%20(3)/DMV%20Class
c) Your air pressure may drop too low during driving
Answer: c) Your air pressure maydrop too low during driving
3. If you must make an emergency stop, you should brake so you:
a) Use the hand brake before the brake pedal
b) Use the full power of the brakes to lock them
c) Can steer and your vehicle stays in a straight line
Answer: c) Can steer and yourvehicle stays in a straight line
4. The proper method of braking when going down long and/or steep grades,
after selecting the proper gear, is to brake until your speed is about MPHbelow
your "safe" speed, then release your brakes
a) 5
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,DMV Class B License Test Air Brakes Endorsement.pdf file:///C:/Users/HP/Desktop/New%20folder%20(3)/DMV%20Class
b) 10
c) 15
Answer: a) 5
5. Your bus or truck has a dual air brake system. If a low air pressure warning
comes on only for one system, what should you do?
a) Reduce your speed and drive to the nearest garage for repairs
3 of 26 12/10/2024, 7:43
DMV Class B License Test Air Brakes
Endorsement Questions & Answers
1. Excessive use of the service breaks results in overheating, which can leadto:
a) Improper adjustment of the S-cam
b) Increased contact between the brake drums and brake linings
c) Expansion of the brake drums
Answer: c) Expansion of the brake drums
2. If air pressure does NOT build up to normal within the correct amount of
time:
a) You should be ready to use your parking brake to help stop
b) The alcohol container may be low
1 of 26 12/10/2024, 7:43
,DMV Class B License Test Air Brakes Endorsement.pdf file:///C:/Users/HP/Desktop/New%20folder%20(3)/DMV%20Class
c) Your air pressure may drop too low during driving
Answer: c) Your air pressure maydrop too low during driving
3. If you must make an emergency stop, you should brake so you:
a) Use the hand brake before the brake pedal
b) Use the full power of the brakes to lock them
c) Can steer and your vehicle stays in a straight line
Answer: c) Can steer and yourvehicle stays in a straight line
4. The proper method of braking when going down long and/or steep grades,
after selecting the proper gear, is to brake until your speed is about MPHbelow
your "safe" speed, then release your brakes
a) 5
2 of 26 12/10/2024, 7:43
,DMV Class B License Test Air Brakes Endorsement.pdf file:///C:/Users/HP/Desktop/New%20folder%20(3)/DMV%20Class
b) 10
c) 15
Answer: a) 5
5. Your bus or truck has a dual air brake system. If a low air pressure warning
comes on only for one system, what should you do?
a) Reduce your speed and drive to the nearest garage for repairs
3 of 26 12/10/2024, 7:43
