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Exam 14: Disc Brake System Principles

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Question 1

Multiple Choice

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The item indicated by the letter A is used to:

A) indicate pad wear.
B) alert the driver when the brakes are applied.
C) reduce pad wear.
D) turn on the brake warning light.

E) All of the above
F) None of the above

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Question 2

Multiple Choice

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The most common brake rotors are typically made of ______.

A) aluminum
B) cast iron
C) both aluminum and cast iron
D) neither aluminum nor cast iron

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

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Question 3

True/False

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Fixed calipers are mounted directly to the steering knuckle have at least two pistons.

Which of the following statements concerning brakes is NOT correct?

Large vehicles typically use ______ rotors.

Technician A says fixed calipers are bolted directly to the steering knuckle and have multiple pistons.Technician B says floating calipers move laterally on bolts or pins.Who is correct?

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

Caliper pistons are made of all of the following EXCEPT:

Many brake pads use ____________ fibers and other materials.

Rotors are mounted to the hub and rotate with the wheel and tire.

_______ calipers are smaller, lighter, and less expensive than _______ calipers.

Many pads have a built-in wear indicating device called a _______ due to the noise it makes when it contacts the rotor.

The caliper piston seal is a _______ seal, housed in a ________ in the piston bore

The most common type of caliper used in modern cars and light trucks is the ________ caliper.

Technician A says disc brakes are more prone to fade than drum brakes.Technician B says disc brakes are less prone to making noise than drum brakes.Who is correct?

During operation, the ___________ ___________ is used to pull the piston back into its bore.

Technician A says components of a basic caliper include the caliper housing body, internal fluid passage, and piston.Technician B says components of a basic caliper include the square seal, dust boot, and bleeder screw.Who is correct?

All of the following are types of disc brake parking brakes EXCEPT:

Drum brakes do a better job of resisting brake fade than disc brakes.

The frictional energy on the rotor surface creates heat.