ASE A5 Brakes Practice Test - Section 2- Drum Brake
Diagnosis and Repair || Exam-Style Test with 100%
Correct Answers!!
A vehicle with disc/drum brakes requires excessive brake pedal effort to stop. The brake
pedal is firm when applied. While starting the engine with the brakes applied, the pedal does
not go down slightly. Technician A says excessive brake pedal freeplay could be the cause.
Technician B says air trapped in the hydraulic system could be the cause. Who is right?
correct answers Neither A nor B
- Both technicians are wrong because the problem is in the power booster. Excessive freeplay
delays application and air in the hydraulic system will cause a spongy pedal.
Which of the following conditions can cause brake pedal fade?
Seized wheel cylinder piston
b. Brake drum machined beyond its limit
c. Leakage past the master cylinder cups
d. Air in the hydraulic system correct answers Brake drum machined beyond its limit
- The greatest drawback of drum brakes is that they are susceptible to fade. Brake fade is loss
of stopping power that occurs when excessive heat reduces friction between brake shoe
linings and drum. There are four types of brake fade. Mechanical fade occurs when the brake
drum gets so hot it expands away from the brake linings. If the brake drum is machined
beyond its limit the contact surface is further from the brake shoes and they move outward to
maintain contact with the drum, causing the brake pedal to drop toward the floor as additional
brake fluid moves into the hydraulic system. The other 3 choices would not cause brake fade.
The rear brake linings are soaked with axle grease but still have a lot of lining left on them.
Which is the correct way to service these brakes? correct answers Repair leak and replace
brake linings
. On a car with a drum/disc system, the front brakes lock up on light pedal application. This
problem could be caused by a bad: correct answers Metering valve
The metering valve controls the pressure to the front disc brakes on a combination system
and if defective can allow too much pressure causing a lock-up. The other choices will not do
this.
Rear drum brakes are being adjusted in the above figure. Technician A says the drum is being
measured to create a measurement for adjusting the brake shoes to match. Technician B says
the drum is being measured for wear using a precision measuring tool. Who is right? correct
answers A only
a - The drum is being measured to create a measurement for adjusting the brake shoes to
match. Technician B is wrong because this is not a precision measuring device.
Drum brakes are adjusted to compensate for which of the following? correct answers . Lining
wear
Diagnosis and Repair || Exam-Style Test with 100%
Correct Answers!!
A vehicle with disc/drum brakes requires excessive brake pedal effort to stop. The brake
pedal is firm when applied. While starting the engine with the brakes applied, the pedal does
not go down slightly. Technician A says excessive brake pedal freeplay could be the cause.
Technician B says air trapped in the hydraulic system could be the cause. Who is right?
correct answers Neither A nor B
- Both technicians are wrong because the problem is in the power booster. Excessive freeplay
delays application and air in the hydraulic system will cause a spongy pedal.
Which of the following conditions can cause brake pedal fade?
Seized wheel cylinder piston
b. Brake drum machined beyond its limit
c. Leakage past the master cylinder cups
d. Air in the hydraulic system correct answers Brake drum machined beyond its limit
- The greatest drawback of drum brakes is that they are susceptible to fade. Brake fade is loss
of stopping power that occurs when excessive heat reduces friction between brake shoe
linings and drum. There are four types of brake fade. Mechanical fade occurs when the brake
drum gets so hot it expands away from the brake linings. If the brake drum is machined
beyond its limit the contact surface is further from the brake shoes and they move outward to
maintain contact with the drum, causing the brake pedal to drop toward the floor as additional
brake fluid moves into the hydraulic system. The other 3 choices would not cause brake fade.
The rear brake linings are soaked with axle grease but still have a lot of lining left on them.
Which is the correct way to service these brakes? correct answers Repair leak and replace
brake linings
. On a car with a drum/disc system, the front brakes lock up on light pedal application. This
problem could be caused by a bad: correct answers Metering valve
The metering valve controls the pressure to the front disc brakes on a combination system
and if defective can allow too much pressure causing a lock-up. The other choices will not do
this.
Rear drum brakes are being adjusted in the above figure. Technician A says the drum is being
measured to create a measurement for adjusting the brake shoes to match. Technician B says
the drum is being measured for wear using a precision measuring tool. Who is right? correct
answers A only
a - The drum is being measured to create a measurement for adjusting the brake shoes to
match. Technician B is wrong because this is not a precision measuring device.
Drum brakes are adjusted to compensate for which of the following? correct answers . Lining
wear
