SOS brake & braking system Exam|100% Verified PASS!!!
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Module
HEAVY TRUCK BRAKES
Institution
HEAVY TRUCK BRAKES
SOS brake & braking system Exam|100% Verified PASS!!!
In a single anchor bendix drum type rear brake
the secondary lining is longer than the primary
Compared to the secondary shoe lining areas of drum brakes, the primary shoe lining area is:
smaller and goes toward the front of the car
...
SOS brake & braking system Exam|100%
Verified PASS!!!
In a single anchor bendix drum type rear brake
the secondary lining is longer than the primary
Compared to the secondary shoe lining areas of drum brakes, the primary shoe lining area is:
smaller and goes toward the front of the car
During a brake overhaul, you notice that the brake fluid seems to be very dirty and dark in color. What
should you do?
flush the system before the new parts are installed
In order to bleed the system on a vehicle equipped with power brakes:
None of the above
Which of the following could be a symptom of over-torqued lug nuts?
A brake pedal pulsation during braking.
Which of the following describes the proper sequence to bleed brake lines on most rear wheel drive
vehicles:
RR, LR, RF, LF
In disc brake caliper assemblies, the "square cut seal" is usually located:
In the caliper piston bore
When performing a caliper overhaul, what would you use to remove the pistons from the calipers?
Compressed air
Sliding caliper disc brake pads are kept in adjustment by the
Square cut piston seal
A cracked or torn vacuum diaphragm in a power booster would likely cause:
Hard pedal with very high effort required
When the brakes are applied on a car with disc-drum brakes, a vibration or pulsating movement is
felt. What can cause this problem?
A rotor thickness variation
While test driving a car, the mechanic finds that the right front brake "grabs". The most likely cause of
this problem is:
Brake fluid or grease on the brake linings.
, During a road test, you find that when normal breaking pressure is applied the pedal slowly goes to
the floor. What is the likely cause of this problem?
A leaking master cylinder primary piston seal.
A rattle is a single piston disc brake assembly which goes away when the brakes are applied is most
likely a result of:
Loose pads in the caliper
Which of the following would most likely cause dragging brakes?
A defective vehicle load sensor
With the car standing still, you can hear a squeaking noise when applying the brake pedal slowly.
What could cause this noise?
Dry backing plate contact surfaces.
There is a scraping sound coming from one rear brake. The sound stops when the brakes are applied.
What is the likely cause of the problem?
A broken shoe hold-down spring or pin
If a drum brake self-adjuster seizes up, the likely result will be:
A low pedal
Which of the following can be used to check for rotor thickness variation?
Dial indicator
On a vehicle with a disc/drum brake system, the rear wheels lock up under hard braking. The most
likely cause is:
A defective proportioning valve
After putting a bearing race in a hub, you notice that the new race is loose and can spin in the hub.
What should you do?
Replace the hub
When adjusting disc-drum brakes, you should:
Adjust the rear brakes after releasing the parking brakes
What type of rotor surface provides the best braking with new pads?
A smooth, flat surface
Which of the following is a quick way to determine whether the master cylinder is bad? There are no
external leaks in the system.
Pump up the brake pedal, then hold it firm. If the pedal slowly drops to the floor, the master cylinder
is bad.
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