brakes certification
Correct Questions &
Solutions
on a car with disc/drum brakes, the front brakes grab quickly when light pedal pressure is applied. This
problem could be caused by a bad.. - ANSWER metering valve
the drive of a vehicle with power disc/drum brakes says that the brake pedal moves slowly to the floor
while maintaining pedal pressure at a spotlight. what could cause this problem? - ANSWER leaking
primary piston cup in master cylinder
which of the following would most likely happen if the measurements taken from the check shown
above varied from the manufacturer's specifications - ANSWER pulsating brake pedal
what is the purpose of the master cylinder residual check valve(s) on vehicles equipped with drum
brakes - ANSWER prevents air from entering the hydraulic system
a tech has just overhauled the front brakes on a vehicle with front disc and rear drum brakes. however
when he attaches a pressure bleeder to the master cylinder, he cannot get any fluid to come out of the
disc caliper bleeder screws. which of the following is most likely the cause - ANSWER metering valve
valve release button not activated
On a vehicle with single piston floating caliper front disc brakes, the brake pads on the left side of the
vehicle are almost completely worn while the right side is almost new. tech a says that too much rotor
runout could be the cause. tech b says that a binding caliper piston could be the cause. who is right. -
ANSWER tech b
, what is the purpose of the bar that is being removed from the brake assembly shown below - ANSWER
to force the shoes into the drum when the parking brakes are applied
A hydraulic brake line is leaking. Which of the following is the correct repair procedure - ANSWER
Replace the leaking line with double-flared steel tubing
the set-up shown above (runout gauge on rotor) is used to check..? - ANSWER lateral rotor runout
Which of the following problems would be caused by using a residual check valve in a disc brake master
cylinder? - ANSWER increased brake pad wear
all of the following could cause a hard brake pedal on a vehicle with power brakes EXCEPT? - ANSWER a
leak in the brake hydraulic system
tech a says that a caliper seal installed in the caliper bore is called a stroking seal. tech b says that when
the brake pedal is released, the piston in the caliper moves back in its bore due to the action of the
piston seal. who is right? - ANSWER tech b
when replacing disc brake pads, you must bottom the caliper piston in its bore to create room for the
new pads. which of the following is the proper procedure? - ANSWER connect a hose the the caliper
bleeder screw and insert the other end of the hose into a suitable container, open the bleeder screw,
then use a C-clamp or plies to slowly bottom the piston in the caliper
tech a says that all three-channel ABS systems use only 3 wheel speed sensors. tech b says that a four
channel ABS system means that fluid pressure is independently regulated to each of the wheels during
an ABS stop. who is right? - ANSWER tech b
tech a says that when a rotor is is machined, an equal amount of material must always be removed from
both sides. tech b says that the minimum thickness dimension cast into the rotor is the dimension that
the rotor can be machined to. who is right? - ANSWER neither
Correct Questions &
Solutions
on a car with disc/drum brakes, the front brakes grab quickly when light pedal pressure is applied. This
problem could be caused by a bad.. - ANSWER metering valve
the drive of a vehicle with power disc/drum brakes says that the brake pedal moves slowly to the floor
while maintaining pedal pressure at a spotlight. what could cause this problem? - ANSWER leaking
primary piston cup in master cylinder
which of the following would most likely happen if the measurements taken from the check shown
above varied from the manufacturer's specifications - ANSWER pulsating brake pedal
what is the purpose of the master cylinder residual check valve(s) on vehicles equipped with drum
brakes - ANSWER prevents air from entering the hydraulic system
a tech has just overhauled the front brakes on a vehicle with front disc and rear drum brakes. however
when he attaches a pressure bleeder to the master cylinder, he cannot get any fluid to come out of the
disc caliper bleeder screws. which of the following is most likely the cause - ANSWER metering valve
valve release button not activated
On a vehicle with single piston floating caliper front disc brakes, the brake pads on the left side of the
vehicle are almost completely worn while the right side is almost new. tech a says that too much rotor
runout could be the cause. tech b says that a binding caliper piston could be the cause. who is right. -
ANSWER tech b
, what is the purpose of the bar that is being removed from the brake assembly shown below - ANSWER
to force the shoes into the drum when the parking brakes are applied
A hydraulic brake line is leaking. Which of the following is the correct repair procedure - ANSWER
Replace the leaking line with double-flared steel tubing
the set-up shown above (runout gauge on rotor) is used to check..? - ANSWER lateral rotor runout
Which of the following problems would be caused by using a residual check valve in a disc brake master
cylinder? - ANSWER increased brake pad wear
all of the following could cause a hard brake pedal on a vehicle with power brakes EXCEPT? - ANSWER a
leak in the brake hydraulic system
tech a says that a caliper seal installed in the caliper bore is called a stroking seal. tech b says that when
the brake pedal is released, the piston in the caliper moves back in its bore due to the action of the
piston seal. who is right? - ANSWER tech b
when replacing disc brake pads, you must bottom the caliper piston in its bore to create room for the
new pads. which of the following is the proper procedure? - ANSWER connect a hose the the caliper
bleeder screw and insert the other end of the hose into a suitable container, open the bleeder screw,
then use a C-clamp or plies to slowly bottom the piston in the caliper
tech a says that all three-channel ABS systems use only 3 wheel speed sensors. tech b says that a four
channel ABS system means that fluid pressure is independently regulated to each of the wheels during
an ABS stop. who is right? - ANSWER tech b
tech a says that when a rotor is is machined, an equal amount of material must always be removed from
both sides. tech b says that the minimum thickness dimension cast into the rotor is the dimension that
the rotor can be machined to. who is right? - ANSWER neither
