Deck 14: Disc Brake System Principles

Question 1

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

Answer 1

Floating; fixed

Question 2

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

Answer 2

True

Question 3

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

Answer 3

False

Question 4

Which of the following statements concerning brakes is NOT correct?

A)Disc brakes can handle more heat than drum brakes
B)Drum brakes resist fading better than disc brakes
C)Disc brakes automatically adjust as the pads wear
D)Disc brakes are more resistant to water fade than drum brakes

Question 5

Caliper pistons are made of all of the following EXCEPT:

A)phenolic plastic
B)steel
C)aluminum
D)cast iron

Question 6

The frictional energy on the rotor surface creates heat.

Question 7

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

Question 8

Large vehicles typically use ______ rotors.

A)solid
B)vented
C)two-piece
D)all answers are correct

Question 9

Many brake pads use ____________ fibers and other materials.

Question 10

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

Question 11

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

Question 12

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

A)fixed
B)floating
C)semi-floating
D)sliding

Question 13

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?

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

Question 14

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

A)integral
B)drum in hat
C)electrical
D)hydraulic

Question 15

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

Question 16

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

Question 17

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.

Question 18

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?

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

Question 19

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

Question 20

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?

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