T4 ASE BRAKES (MEDIUM/HEAVY
DUTY BRAKES) EXAM
The brake pedal on a vehicle with power-assisted disc/drum brakes moves
slowly to the floor during braking. Which could be the cause? - A Leaking Master Cylinder Primary Cup
On a vehicle with disc/drum brakes, the front brakes grab quickly when light
pedal pressure is applied. This could be caused by a bad: - Metering Valve
On a vehicle with single piston, floating caliper disc brakes, the disc brake pad
between the caliper piston and the rotor is badly worn. The other brake pad is
only slightly worn.
Technician A says that too much rotor runout could be the cause.
Technician B says that a frozen caliper piston could be the cause.
Who is right? - Neither A nor B
When the brakes are applied, a vibration comes from the front of a vehicle with
a disc/drum system. Which could be the cause - Excessive Rotor Runout
A front disc brake rotor is slightly below minimum thickness specification after
machining. The technician should: - Replace The Rotor
A hydraulic brake line is leaking. Which is the correct repair? - Replace the leaking line double flared
steel tubing
The drag on a vehicle's drum brakes increases after each application until
they lockup. Bleeding the system restores normal operation for a short time;
, then drag increases until the brakes lockup again. Which could be the
cause? - A Blocked Compensating Port
With the brakes applied, the pedal moves down slightly when the engine is
started on a vehicle with power brakes.
Technician A says that the cause could be a leaking power brake booster
diaphragm.
Technician B says that the cause could be a stuck closed check valve on the
power brake booster manifold.
Who is right? - Neither A nor B
What are the major components of the brake system? - disc brakes
brake pads
calipers
rotors
drum brakes
drums
shoes
drum hardware
wheel cylinders
master cylinder
pressure differential valve
proportioning valve
brake fluid
brake hoses and lines
anti-lock brake system (ABS)
What are disc brakes? - brakes that use a pair of friction pads to squeeze against a flat disc or rotor
when the brakes are applied
DUTY BRAKES) EXAM
The brake pedal on a vehicle with power-assisted disc/drum brakes moves
slowly to the floor during braking. Which could be the cause? - A Leaking Master Cylinder Primary Cup
On a vehicle with disc/drum brakes, the front brakes grab quickly when light
pedal pressure is applied. This could be caused by a bad: - Metering Valve
On a vehicle with single piston, floating caliper disc brakes, the disc brake pad
between the caliper piston and the rotor is badly worn. The other brake pad is
only slightly worn.
Technician A says that too much rotor runout could be the cause.
Technician B says that a frozen caliper piston could be the cause.
Who is right? - Neither A nor B
When the brakes are applied, a vibration comes from the front of a vehicle with
a disc/drum system. Which could be the cause - Excessive Rotor Runout
A front disc brake rotor is slightly below minimum thickness specification after
machining. The technician should: - Replace The Rotor
A hydraulic brake line is leaking. Which is the correct repair? - Replace the leaking line double flared
steel tubing
The drag on a vehicle's drum brakes increases after each application until
they lockup. Bleeding the system restores normal operation for a short time;
, then drag increases until the brakes lockup again. Which could be the
cause? - A Blocked Compensating Port
With the brakes applied, the pedal moves down slightly when the engine is
started on a vehicle with power brakes.
Technician A says that the cause could be a leaking power brake booster
diaphragm.
Technician B says that the cause could be a stuck closed check valve on the
power brake booster manifold.
Who is right? - Neither A nor B
What are the major components of the brake system? - disc brakes
brake pads
calipers
rotors
drum brakes
drums
shoes
drum hardware
wheel cylinders
master cylinder
pressure differential valve
proportioning valve
brake fluid
brake hoses and lines
anti-lock brake system (ABS)
What are disc brakes? - brakes that use a pair of friction pads to squeeze against a flat disc or rotor
when the brakes are applied
