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The caliper assembly shown in the following figure is a fixed caliper. ​ The caliper assembly shown in the following figure is a fixed caliper.   ​

A) True
B) False

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Why should disc brake drag be avoided?

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Brake drag increases pad and rotor wear and creates friction that the engine has to overcome, wasting fuel. Heat buildup in brakes will warp the rotors and drum, and may overheat the wheel bearing grease.

An integral hub means that the hub and the rest of the rotor are cast as a single part.

A) True
B) False

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Rollers are held in place by the ____________________ mounted to the inner race.

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The friction material used for disc brake pads is generally harder than that used on drum brake linings.

A) True
B) False

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True

Technician A says some rear disc brakes have a small parking brake drum built into the center of the rotor. Technician B says some rear disc brakes move the caliper piston to apply the parking brake. Who is correct?


A) A only
B) B only
C) Both A and B
D) Neither A nor B

E) C) and D)
F) B) and C)

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Technician A says the seal around the piston is used to seal the hydraulic pressure behind the piston. Technician B says the seal around the piston is used to retract the piston. Who is correct?


A) A only
B) B only
C) Both A and B
D) Neither A nor B

E) A) and B)
F) B) and C)

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After installing new brake pads, the pads require _____________ during the _______ ______ before returning the vehicle to the customer.

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burnishing, test drive

Most caliper bodies have one or two large openings in the top of the casting through which the lining thickness can be inspected .

A) True
B) False

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Explain the purpose of the disc brake caliper.

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The disc brake caliper convert...

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What are disadvantages of phenolic pistons?

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They have a tendency to wear f...

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Technician A says the procedure-indicated illustration is a method of seating new pads. Technician B says the procedure shown is a method of retracting the caliper piston. Who is correct? ​ Technician A says the procedure-indicated illustration is a method of seating new pads. Technician B says the procedure shown is a method of retracting the caliper piston. Who is correct? ​   ​ A) A only B) B only C) Both A and B D) Neither A nor B


A) A only
B) B only
C) Both A and B
D) Neither A nor B

E) C) and D)
F) B) and C)

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Which brake friction material has been phased out due to health hazards?

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Vacuum enclosures and _____________ or water-based cleaning equipment are among the most popular for brake service and should always be used to clean brake assemblies and components.

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All of the following statements about hard spots in the rotor are true EXCEPT:


A) hard spots cause the rotor to expand.
B) hard spots  appear as round, shiny, bluish areas on the friction surface.
C) hard spots are difficult to machine, and may require special cutting bits for a brake lathe.
D) most car manufacturers recommend replacing a rotor with hard spots.

E) C) and D)
F) A) and D)

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New caliper piston seals should be lubricated with:


A) clean brake fluid.
B) silicone grease.
C) petroleum jelly.
D) either B or C.

E) A) and C)
F) B) and D)

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Technician A says excellent refinishing results can be achieved with an on-vehicle lathe. Technician B says one advantage of an on-vehicle lathe is that the rotor does not have to be removed from the spindle or the hub. Who is correct?


A) A only
B) B only
C) Both A and B
D) Neither A nor B

E) A) and D)
F) A) and C)

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The tool shown in the illustration is used to: ​ The tool shown in the illustration is used to: ​   A) extend the rear caliper piston. B) retract the front caliper piston. C) retract the rear caliper piston. D) extend the front caliper piston.


A) extend the rear caliper piston.
B) retract the front caliper piston.
C) retract the rear caliper piston.
D) extend the front caliper piston.

E) None of the above
F) A) and B)

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Explain the purpose of the Automotive Friction Material Edge Code.

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The friction material of a new brake pad...

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Technician A says the figure below shows a front disc brake caliper assembly used on a front-wheel drive vehicle. Technician B says the figure below shows a rear disc brake caliper assembly. Who is correct? ​ Technician A says the figure below shows a front disc brake caliper assembly used on a front-wheel drive vehicle. Technician B says the figure below shows a rear disc brake caliper assembly. Who is correct? ��​   A) A only B) B only C) Both A and B D) Neither A nor B


A) A only
B) B only
C) Both A and B
D) Neither A nor B

E) All of the above
F) A) and B)

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