Air brakes written test (sgi) UPDATED
ACTUAL Questions and CORRECT
Answers
Most break lines operate best around _________ and should not exceed _______ - CORRECT
ANSWER - 120°/ 250°
When two surfaces are in contact with each other what does the friction do? - CORRECT
ANSWER - Resists movment
If you double your speed your stopping distance will - CORRECT ANSWER - Quadruple
What is not a factor in determining stopping distance? - CORRECT ANSWER - Engine
speed
The supply reservoir is also known as? - CORRECT ANSWER - The wet reservoir
If a safety valve blows off excess pressure, this indicates an issue with what? - CORRECT
ANSWER - The governor
The purpose of brakes on a vehicle is to what? - CORRECT ANSWER - Concert heat to
motion (stop)
To operate an air break equipped vehicle in Sk what must be present on your license ? -
CORRECT ANSWER -A
At what system air pressure (maximum) must a governor stop a compressor pumping air -
CORRECT ANSWER - 145psi
, The function of the compressor is to - CORRECT ANSWER - Build up and maintain air
pressure
Between the driver recognizing a hazard to apply the break peddle, how much time would have
gone by? - CORRECT ANSWER - .75 of a second
When a governor has stopped a compressor pumping air, it should resume before the pressure
drops below? - CORRECT ANSWER - 100psi
When the foot operated valve is released what happens to the air in the service breaks? -
CORRECT ANSWER - It is released to the exhaust port
How many principal components does a basic air break system have - CORRECT
ANSWER -5
When air is supplied to the service brake chamber what does the push rod do? - CORRECT
ANSWER - Moves the slack adjuster
The safety valve on a supply reservoir is usually presented at? - CORRECT ANSWER -
150psi
all reservoirs in an air break system must be drained at least - CORRECT ANSWER -
Daily
what function does the one way check valve preform? - CORRECT ANSWER - stops air
bleeding from the service reservoir to the supply reservoir
in a properly working air break system, from applying the pedal to the air working on the breaks
approx. how much time will elapse - CORRECT ANSWER - 0.4 of a second
ACTUAL Questions and CORRECT
Answers
Most break lines operate best around _________ and should not exceed _______ - CORRECT
ANSWER - 120°/ 250°
When two surfaces are in contact with each other what does the friction do? - CORRECT
ANSWER - Resists movment
If you double your speed your stopping distance will - CORRECT ANSWER - Quadruple
What is not a factor in determining stopping distance? - CORRECT ANSWER - Engine
speed
The supply reservoir is also known as? - CORRECT ANSWER - The wet reservoir
If a safety valve blows off excess pressure, this indicates an issue with what? - CORRECT
ANSWER - The governor
The purpose of brakes on a vehicle is to what? - CORRECT ANSWER - Concert heat to
motion (stop)
To operate an air break equipped vehicle in Sk what must be present on your license ? -
CORRECT ANSWER -A
At what system air pressure (maximum) must a governor stop a compressor pumping air -
CORRECT ANSWER - 145psi
, The function of the compressor is to - CORRECT ANSWER - Build up and maintain air
pressure
Between the driver recognizing a hazard to apply the break peddle, how much time would have
gone by? - CORRECT ANSWER - .75 of a second
When a governor has stopped a compressor pumping air, it should resume before the pressure
drops below? - CORRECT ANSWER - 100psi
When the foot operated valve is released what happens to the air in the service breaks? -
CORRECT ANSWER - It is released to the exhaust port
How many principal components does a basic air break system have - CORRECT
ANSWER -5
When air is supplied to the service brake chamber what does the push rod do? - CORRECT
ANSWER - Moves the slack adjuster
The safety valve on a supply reservoir is usually presented at? - CORRECT ANSWER -
150psi
all reservoirs in an air break system must be drained at least - CORRECT ANSWER -
Daily
what function does the one way check valve preform? - CORRECT ANSWER - stops air
bleeding from the service reservoir to the supply reservoir
in a properly working air break system, from applying the pedal to the air working on the breaks
approx. how much time will elapse - CORRECT ANSWER - 0.4 of a second
