T4 BRAKES ASE EXAM WITH
ACTUAL QUESTIONS AND
CORRECT DETAILED WELL
EXPLAINED ANSWERS 2024
NEWEST LATEST UPDATE
GRADED A+ WITH 100%
GUARANTEED SUCCESS AFTER
DOWNLOAD (ALL YOU NEED
TO PASS YOUR EXAMS)
What is the correct way to test the inversion valve? Drain the primary tank and watch the action of
the parking brakes
Nilon airlines must be cut at a 90ﾟ angle to seal properly True
What should be used to clean ABS electrical connectors? Alcohol
All fittings and airlines on a truck should be stamped with? DOT
Air leak test are performed with soapy water: true
The legal minimum standard for trailer ABS is 2S/1M. The ABS electrical feed is usually through the blue
auxiliary circuit in a seven wire trailer cord. True
How do you bench test the heater on an air drier? with an ohm meter
, Brake lights on a truck are activated at approximately: 6PSI
What is used to check the operation of a double check valve? A pressure Gauge
Maximum s cam axial clearance: .060inches
A broken backing plate could cause even breaking and cause a pull.. True
Super singles can cause excessive vibrations to transfer to the S cam brackets damaging them.
The S cam has rolled over. What is the cause? worn brake drum
True or False?
ATC uses the ABS hardware to prevent spinning conditions in the drive wheels. True
A auto slack adjuster will not stay adjusted. Tech A says the problem may be incorrectly installed slack
adjuster. Tech B says the problem may be mismatched brake chambers. Whos correct? Tech A. Slack
adjusters must be installed to OEM specs
Tech A says the roller should be lubricated on the shoulder where it contacts the shoe. Tech B says the
roller should be lubed where it contacts the face of the S cam. Whos correct? Tech A. The roller
rotates in the shoe
Metal brake linings should be replaced with? Steel. Replacement lines are always made of steel
An air disc brake will not apply. Air is supply to the brake chamber. Tech A says the caliper slides may be
frozen. Tech B says the adjuster mechanism may be frozen. Whos correct? Tech A.
Maximum S cam radial clearance? 0.030 inches
The driver reports loose steering on the driver report sheet. A technician finds a loose Wheel bearing.
On further inspection the problem is identified as a bearing race that fits loose in the hub. What should
the technician do? Replace the hub
The parking brakes on a truck equipped with air brakes are slow to apply. which the following is the
most likely problem?
There is an air leak from the service relay when the parking brakes are released. Technician A says the
service relay may be faulty. Technician B says the parking brake chamber may be faulty. Who is correct?
Tech B. The parking brake chamber is allowing air to escape thru the center seal and it is flowing
back into the service relay valve
True False? Parking brake chambers should be caged in the released position True
What signals the air dryer to purge? The governor
An air disc brake rotor is being measured for thickness variation. Technician a says two dial indicators
can be used. Technician B says and outside micrometer can be used. Who is correct? Both Techs
True False? A ruptured diaphragm will prevent brake operation it will not cause draggingTrue
is a ratchet wrench the correct tool to cage brake chamber? Yes
ACTUAL QUESTIONS AND
CORRECT DETAILED WELL
EXPLAINED ANSWERS 2024
NEWEST LATEST UPDATE
GRADED A+ WITH 100%
GUARANTEED SUCCESS AFTER
DOWNLOAD (ALL YOU NEED
TO PASS YOUR EXAMS)
What is the correct way to test the inversion valve? Drain the primary tank and watch the action of
the parking brakes
Nilon airlines must be cut at a 90ﾟ angle to seal properly True
What should be used to clean ABS electrical connectors? Alcohol
All fittings and airlines on a truck should be stamped with? DOT
Air leak test are performed with soapy water: true
The legal minimum standard for trailer ABS is 2S/1M. The ABS electrical feed is usually through the blue
auxiliary circuit in a seven wire trailer cord. True
How do you bench test the heater on an air drier? with an ohm meter
, Brake lights on a truck are activated at approximately: 6PSI
What is used to check the operation of a double check valve? A pressure Gauge
Maximum s cam axial clearance: .060inches
A broken backing plate could cause even breaking and cause a pull.. True
Super singles can cause excessive vibrations to transfer to the S cam brackets damaging them.
The S cam has rolled over. What is the cause? worn brake drum
True or False?
ATC uses the ABS hardware to prevent spinning conditions in the drive wheels. True
A auto slack adjuster will not stay adjusted. Tech A says the problem may be incorrectly installed slack
adjuster. Tech B says the problem may be mismatched brake chambers. Whos correct? Tech A. Slack
adjusters must be installed to OEM specs
Tech A says the roller should be lubricated on the shoulder where it contacts the shoe. Tech B says the
roller should be lubed where it contacts the face of the S cam. Whos correct? Tech A. The roller
rotates in the shoe
Metal brake linings should be replaced with? Steel. Replacement lines are always made of steel
An air disc brake will not apply. Air is supply to the brake chamber. Tech A says the caliper slides may be
frozen. Tech B says the adjuster mechanism may be frozen. Whos correct? Tech A.
Maximum S cam radial clearance? 0.030 inches
The driver reports loose steering on the driver report sheet. A technician finds a loose Wheel bearing.
On further inspection the problem is identified as a bearing race that fits loose in the hub. What should
the technician do? Replace the hub
The parking brakes on a truck equipped with air brakes are slow to apply. which the following is the
most likely problem?
There is an air leak from the service relay when the parking brakes are released. Technician A says the
service relay may be faulty. Technician B says the parking brake chamber may be faulty. Who is correct?
Tech B. The parking brake chamber is allowing air to escape thru the center seal and it is flowing
back into the service relay valve
True False? Parking brake chambers should be caged in the released position True
What signals the air dryer to purge? The governor
An air disc brake rotor is being measured for thickness variation. Technician a says two dial indicators
can be used. Technician B says and outside micrometer can be used. Who is correct? Both Techs
True False? A ruptured diaphragm will prevent brake operation it will not cause draggingTrue
is a ratchet wrench the correct tool to cage brake chamber? Yes
