Usmc air brakes Exam Questions With Complete Solutions
3 parts of the air brake system Correct Answers Service,
parking, and emergency brake
Air compressor Correct Answers The air compressor pumps air
into the air storage tanks reservoirs. The air compressor is
connected to the engine through gears or a v-belt
Air compressor governor Correct Answers The governor
controls when the air compressor will pump air into the air
storage tanks. When air tank pressure rises to the cut out level
around 125lbs PSI, the governor stops the compressor from
pumping air. When the tank pressure falls to the cut in pressure
(100 psi) the governor allows the compressor to start pumpinle
again
Air storage tank Correct Answers Air storage tanks are used to
hold compressed air.
Air tank drains Correct Answers Each tank is equipped with a
drain valve, to drain water to prevent freezing.
Alcohol evaporator Correct Answers This helps to reduce the
risk of ice in air brake valves and other parts during cold
weather.
All truck tractora with air brakes on or after march 1st_______-
________ are required to be with anti lock brakes Correct
Answers 1997-1998
, Another type of warning is the "wig wag". This type of device
drops a mechanical arm into your view when the pressure in the
system drops below ____ psi Correct Answers 60 psi
Application pressure gauge Correct Answers This gauge shows
how much air pressure you are applying to the brakes. (this
gauge is not on all vehicles)
Are front wheel brakes best in all conditions? Correct Answers
Yes
Are front wheel brakes best in all conditions? Correct Answers
Yes, front wheeled brakes are good under all conditions
Before draining a vehicle with a dual air system should you
allow time for the air compressor to build up? How much?
Correct Answers Yes, 3 mins or a minimum of 100 psi
Brake pedal Correct Answers Pushing the pedal down harder
applies more air pressure. Letting up on the brake pedal reduces
the air pressure and releases the brakes
Describe the dual air brake system? Correct Answers Primary
and secondary with own air tanks, hoses, lines
Disc brakes Correct Answers The pressure of the brake
chamber on the slack adjuster turns the power screw. The power
screw clamps the disc or rotor between the brake lining pads of a
culiper, similar to a large c-clamp.
3 parts of the air brake system Correct Answers Service,
parking, and emergency brake
Air compressor Correct Answers The air compressor pumps air
into the air storage tanks reservoirs. The air compressor is
connected to the engine through gears or a v-belt
Air compressor governor Correct Answers The governor
controls when the air compressor will pump air into the air
storage tanks. When air tank pressure rises to the cut out level
around 125lbs PSI, the governor stops the compressor from
pumping air. When the tank pressure falls to the cut in pressure
(100 psi) the governor allows the compressor to start pumpinle
again
Air storage tank Correct Answers Air storage tanks are used to
hold compressed air.
Air tank drains Correct Answers Each tank is equipped with a
drain valve, to drain water to prevent freezing.
Alcohol evaporator Correct Answers This helps to reduce the
risk of ice in air brake valves and other parts during cold
weather.
All truck tractora with air brakes on or after march 1st_______-
________ are required to be with anti lock brakes Correct
Answers 1997-1998
, Another type of warning is the "wig wag". This type of device
drops a mechanical arm into your view when the pressure in the
system drops below ____ psi Correct Answers 60 psi
Application pressure gauge Correct Answers This gauge shows
how much air pressure you are applying to the brakes. (this
gauge is not on all vehicles)
Are front wheel brakes best in all conditions? Correct Answers
Yes
Are front wheel brakes best in all conditions? Correct Answers
Yes, front wheeled brakes are good under all conditions
Before draining a vehicle with a dual air system should you
allow time for the air compressor to build up? How much?
Correct Answers Yes, 3 mins or a minimum of 100 psi
Brake pedal Correct Answers Pushing the pedal down harder
applies more air pressure. Letting up on the brake pedal reduces
the air pressure and releases the brakes
Describe the dual air brake system? Correct Answers Primary
and secondary with own air tanks, hoses, lines
Disc brakes Correct Answers The pressure of the brake
chamber on the slack adjuster turns the power screw. The power
screw clamps the disc or rotor between the brake lining pads of a
culiper, similar to a large c-clamp.
