ASE A5 Brakes Practice Test -Section 1- Hydraulic
System Diagnosis and Repair || A+ Practice Test:
Instant Prep, Verified Results!!
A spongy brake pedal may be caused by: correct answers Air in the hydraulic system
d - Air causes a gap in the hydraulic fluid flow because the fluid has to compress the air
before it can apply the piston. This delay causes the spongy feel. The other choices do not
affect this concern.
This question is not like the others. It has the word EXCEPT. For this question, look for the
choice that could NOT cause the described situation. Read the entire question carefully
before choosing your answer. A vehicle has a very erratic brake pulling concern while
applying the brakes. All of the following items could cause this erratic pull EXCEPT:
Excessive tire pressure b. Four-wheel alignment c. Seized caliper piston on the other side d.
Steering gear problem correct answers a. Excessive tire pressure
Excessive tire pressure is the exception because this fault will cause tire wear but not a pull.
Low or uneven tire pressure can cause a pull.
3. The brakes are being bled on an older vehicle equipped with a quick take up valve in the
master cylinder. Technician A says the quick take up valve must be depressed. Technician B
says the brakes on this vehicle cannot be bled. Who is right? correct answers Neither A nor B
- Both technicians are wrong. The brakes on quick take up systems use the same bleeding
procedure as those without this valve.
A power assist brake booster push rod that is to short will cause which of the following?
correct answers Excessive brake pedal travel
- A short push rod length will have to travel farther for contact and result in excessive pedal
travel.
This question is not like the others. It has the word EXCEPT. For this question, look for the
choice that could NOT cause the described situation. Read the entire question carefully
before choosing your answer. Excessive brake pedal travel with a firm brake pedal can be
caused by all of the following issues, EXCEPT: correct answers Low brake fluid level
A low brake fluid level will not cause excessive brake pedal travel and a firm brake pedal. All
of the others will cause excessive brake pedal travel and a firm brake pedal
The master cylinder fluid level is low on a vehicle. Technician A says the cause could be a
brake out of adjustment. Technician B says that one of the brake systems has failed. Who is
right? correct answers Both A and B
- Technician A is right because blockage of the compensation ports will not allow the fluid to
return to the master cylinder reservoir and thereby cause the brakes to remain applied and
drag. Excessive free travel cause brake lag not drag
, After the replacement of a master cylinder the brakes drag. Technician A says the
compensation ports may be blocked. Technician B says excessive pedal free play could be
the cause. Who is right? correct answers Technician A is right because blockage of the
compensation ports will not allow the fluid to return to the master cylinder reservoir and
thereby cause the brakes to remain applied and drag. Excessive free travel cause brake lag not
drag.
Technician A says a brake fluid leak at the rear of the master cylinder can leak fluid into the
master cylinder. Technician B says oil leaks can be found by adding a dye to brake fluid that
is visible under ultraviolet or black light. Who is right? correct answers Both A and B
A master cylinder has been replaced. In an overall bleeding sequence, which part should be
bled first? correct answers Master cylinder
The master cylinder is always bled first and the wheels in order from the one farthest from
the master cylinder.
Two technicians are describing master cylinder characteristics. Technician A says it is NOT
normal to see fluid movement in the reservoir when the brake pedal is depressed. Technician
B says a defective master cylinder can cause the brake pedal to slowly sink to the floor when
depressed. Who is right? correct answers B only
A defective master cylinder can cause the brake pedal to slowly sink to the floor when
depressed, if fluid is leaking internally past the seals. Technician A is wrong because it is
normal to see fluid movement in the reservoir when the brake pedal is depressed
When the brake pedal pushrod is not adjusted correctly, brake fluid may not be able to
expand back into the reservoir through which port of the master cylinder when the brakes get
hot?
a. Vent port (forward hole)
b. Replenishing port (rearward hole)
c. Inlet port
d. Either A or C correct answers Either A or C
The vent port is also called the inlet port. If the vent port is blocked for any reason, the brakes
of the vehicle may self-apply when the brake fluid heats up during normal braking. Since the
vent port is blocked, the expanded hotter brake fluid has no place to expand and instead
increases the pressure in the brake lines. The increase in pressure causes the brakes to apply.
Loosening the bleeder valves and releasing the built-up pressure is a check that the brakes are
self-applying. Then check the master cylinder to see if it is "venting."
The primary brake circuit fails due to an external leak at the rear section of dual master
cylinder. Technician A says you will notice a spongy lower- than- normal brake pedal and
reduced braking power. Technician B says the brake pedal will "grab" higher than normal.
Who is right? correct answers A only
- Brake fluid leaks cause air in the system, which lowers the brake pedal, making it spongy
and reduced braking power. Technician B is wrong because air in the system will not cause
any early brake engagement or grabbing higher than normal.
System Diagnosis and Repair || A+ Practice Test:
Instant Prep, Verified Results!!
A spongy brake pedal may be caused by: correct answers Air in the hydraulic system
d - Air causes a gap in the hydraulic fluid flow because the fluid has to compress the air
before it can apply the piston. This delay causes the spongy feel. The other choices do not
affect this concern.
This question is not like the others. It has the word EXCEPT. For this question, look for the
choice that could NOT cause the described situation. Read the entire question carefully
before choosing your answer. A vehicle has a very erratic brake pulling concern while
applying the brakes. All of the following items could cause this erratic pull EXCEPT:
Excessive tire pressure b. Four-wheel alignment c. Seized caliper piston on the other side d.
Steering gear problem correct answers a. Excessive tire pressure
Excessive tire pressure is the exception because this fault will cause tire wear but not a pull.
Low or uneven tire pressure can cause a pull.
3. The brakes are being bled on an older vehicle equipped with a quick take up valve in the
master cylinder. Technician A says the quick take up valve must be depressed. Technician B
says the brakes on this vehicle cannot be bled. Who is right? correct answers Neither A nor B
- Both technicians are wrong. The brakes on quick take up systems use the same bleeding
procedure as those without this valve.
A power assist brake booster push rod that is to short will cause which of the following?
correct answers Excessive brake pedal travel
- A short push rod length will have to travel farther for contact and result in excessive pedal
travel.
This question is not like the others. It has the word EXCEPT. For this question, look for the
choice that could NOT cause the described situation. Read the entire question carefully
before choosing your answer. Excessive brake pedal travel with a firm brake pedal can be
caused by all of the following issues, EXCEPT: correct answers Low brake fluid level
A low brake fluid level will not cause excessive brake pedal travel and a firm brake pedal. All
of the others will cause excessive brake pedal travel and a firm brake pedal
The master cylinder fluid level is low on a vehicle. Technician A says the cause could be a
brake out of adjustment. Technician B says that one of the brake systems has failed. Who is
right? correct answers Both A and B
- Technician A is right because blockage of the compensation ports will not allow the fluid to
return to the master cylinder reservoir and thereby cause the brakes to remain applied and
drag. Excessive free travel cause brake lag not drag
, After the replacement of a master cylinder the brakes drag. Technician A says the
compensation ports may be blocked. Technician B says excessive pedal free play could be
the cause. Who is right? correct answers Technician A is right because blockage of the
compensation ports will not allow the fluid to return to the master cylinder reservoir and
thereby cause the brakes to remain applied and drag. Excessive free travel cause brake lag not
drag.
Technician A says a brake fluid leak at the rear of the master cylinder can leak fluid into the
master cylinder. Technician B says oil leaks can be found by adding a dye to brake fluid that
is visible under ultraviolet or black light. Who is right? correct answers Both A and B
A master cylinder has been replaced. In an overall bleeding sequence, which part should be
bled first? correct answers Master cylinder
The master cylinder is always bled first and the wheels in order from the one farthest from
the master cylinder.
Two technicians are describing master cylinder characteristics. Technician A says it is NOT
normal to see fluid movement in the reservoir when the brake pedal is depressed. Technician
B says a defective master cylinder can cause the brake pedal to slowly sink to the floor when
depressed. Who is right? correct answers B only
A defective master cylinder can cause the brake pedal to slowly sink to the floor when
depressed, if fluid is leaking internally past the seals. Technician A is wrong because it is
normal to see fluid movement in the reservoir when the brake pedal is depressed
When the brake pedal pushrod is not adjusted correctly, brake fluid may not be able to
expand back into the reservoir through which port of the master cylinder when the brakes get
hot?
a. Vent port (forward hole)
b. Replenishing port (rearward hole)
c. Inlet port
d. Either A or C correct answers Either A or C
The vent port is also called the inlet port. If the vent port is blocked for any reason, the brakes
of the vehicle may self-apply when the brake fluid heats up during normal braking. Since the
vent port is blocked, the expanded hotter brake fluid has no place to expand and instead
increases the pressure in the brake lines. The increase in pressure causes the brakes to apply.
Loosening the bleeder valves and releasing the built-up pressure is a check that the brakes are
self-applying. Then check the master cylinder to see if it is "venting."
The primary brake circuit fails due to an external leak at the rear section of dual master
cylinder. Technician A says you will notice a spongy lower- than- normal brake pedal and
reduced braking power. Technician B says the brake pedal will "grab" higher than normal.
Who is right? correct answers A only
- Brake fluid leaks cause air in the system, which lowers the brake pedal, making it spongy
and reduced braking power. Technician B is wrong because air in the system will not cause
any early brake engagement or grabbing higher than normal.
