EXAM COMPLETE QUESTIONS AND ANSWERS | 100% RATED CORRECT |
100% VERFIED | ALREADY GRADED A+
1. A spongy brake peal may be caused by:
a. ABS Diagnostic Trouble Code set
b. Frozen caliper piston
c. Defective metering valve
d. Air in hydraulic system: d. Air in hydraulic system
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.
2. 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:
a. Excessive tire pressure
b. Four-wheel alignment
c. Seized caliper piston on the other side
d. Steering gear problem: 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?
a. A only
b. B only
c. Both and B
d. Neither A nor B: d. 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.
4. A power assist brake booster push rod that is too short will cause which of the following?
a. Excessive brake drag
b. Brake system in the inoperative
c. Excessive brake pedal travel
d. Brake light is illuminated: c. Excessive brake pedal travel
A short push rod length will have to travel farther for contact and result in excessive pedal travel.
5. 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:
a. Rear drum brakes out of adjustment
b. Low brake fluid level
c. One brake system has failed
d. Master cylinder push rod too long: b. 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.
6. 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?
a. A only
b. B only
c. Both A and B
d. Neither A nor B: c. Both A and B Both technicians are correct.
7. 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?
a. A only
b. B only
, c. Both A and B
d. Neither A nor B: a. A only
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.
8. 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?
a. A only
b. B only
c. Both A and B
d. Neither A nor B: c. Both A and B Both technicians are correct.
9. A master cylinder has been replaced. In an overall bleeding sequence, which part should be bled
first?
a. Wheel cylinders
b. Brake calipers
c. Master cylinder
d. Combination valve: c. Master cylinder
The master cylinder is always bled first and the wheels in order from the one farthest from the master
cylinder.