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EMCC ATA146 Final Exam Questions And 100% Correct Answers
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EMCC ATA146 Final Exam Questions And 100%Correct Answers
Disc brakes require more force than drums to achieve the same braking effort - Answer
true
When replacing pads on actuating type calipers, the piston must be kept from spinning
as the c clamp pusher the piston back into the caliper bore - Answer false
A typical fixed caliper housing is designed with one caliper piston - Answer false
What prevents moisture from entering the cylinder bore? - Answer the dust boot
Tech A siphons out about 2/3 of the brake fluid from the master cylinder before starting
work on the pads or calipers. Tech B opens the caliper bleeder screws and runs a hose
to a container to catch the fluid that is expelled, while pushing the pistons back. -
Answer C
Rotors are usually made from - Answer cast iron
On what make of vehicles is the ball and ramp type parking brake actuator? - Answer
Ford
Tech A cleans brake components in denatured alcohol. Tech B cleans brake
components in clean brake fluid. Who is correct? - Answer C
Tech A replaces the pads if the linings are less than 1/8th inch. Tech B says if the pad on
one side of the caliper is worn more than the other side then the rotor has excess runout
and must be replaced - Answer A
, Which of the following technicians is correct when attempting to remove disc brake
caliper pistons? Tech A places a large dull screwdriver in the piston's dust boot broove
and pries the piston out. Tech B injects 25psi of air pressure into the fluid line
connecting bore to remove the caliper piston. - Answer C
Composite rotors are made of cast iron and - Answer steel
Tech A says a fixed rotor has an integral hub inside which the wheel bearings are
mounted. Technician B says a floating rotor is less expensive than a fixed rotor and can
be replaced easily and economically. - Answer C
Solid rotors are usually found on:
Front brakes of small compact vehicles
Rear brakes of vehicles with rear discs
Front bakes of small compact vehicles
Both1/2 - Answer both
Tapered roller bearings are being discussed. Tech A says the grease seal is installed
onth the outboard side of the bearing. Tech B says the outer cup or race is pressed into
the hub. Who is correct? Answer b
The position of a bleeder screw in relation to the cylinder bore when brake calipers are
involved. Tech A says that it is located on the bottom of the cylinder bore. Tech B says
that the fluid inlet hole is on top of the cylinder bore - Answer D
Which of the following components is used in the brake caliper to retract the piston
upon release of hydraulic pressure? - Answer Square cut O ring
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