206 Auto Brakes
Brake pad linings are made from various heat resistant
materials. They are bonded or riveted to the steel shoe. The
shoe is a backing plate for the lining and a rigid meeting
place for the apply piston(s).
To reduce brake noise, shoes are sometimes equipped
with special insulators. Some brake shoes also incorpo-
rate warning devices to alert the driver that brake work is
necessary.
Review Questions—Chapter 12
Please do not write in this text. Write your answers on
a separate sheet of paper
1. A ventilated rotor has internal ______ to remove heat.
2. Solid rotors are cooled by air passing over the ______
surfaces of the rotor.
3. Rotors are attached to the wheel ______, which is
attached to the spindle through ______.
4. On some vehicles, an extra ______ holds the caliper
to the spindle.
5. Removing brake drag improves ______.
6. A caliper which moves in relation to the spindle
mounting is called a ______ caliper.
7. All modern fixed calipers have ______ pistons, ______
on each side.
8. All rear disc brake calipers are equipped with a
______ brake.
9. What two parts make up a disc brake pad?
10. The two disc brake pad parts in Question 9 are
attached to each other by what two methods?
ASE Certification-Type Questions
1. Technician A says that all rotors are cast as an integral
part of the hub. Technician B says that all rotors spin
with the wheel. Who is right?
(A) A only.
(B) B only.
(C) Both A & B.
(D) Neither A nor B.
2. On a ventilated rotor, the fins are used for ______.
(A) cooling
(B) increasing airflow
(C) cleaning
(D) Both A & B.
3. Technician A says that every floating caliper has at
least one piston. Technician B says that every piston
has a dust boot. Who is right?
(A) A only.
(B) B only.
(C) Both A & B.
(D) Neither A nor B.
4. Splash shields are installed on the ______ side of the
rotor.
(A) inboard
(B) outboard
(C) inboard and outboard
(D) None of the above.
5. Most disc brake calipers are made of ______.
(A) aluminum
(B) cast iron
(C) steel
(D) Both A & B.
6. Technician A says that a floating caliper has one or
two pistons. Technician B says that a fixed caliper has
one or two pistons. Who is right?
(A) A only.
(B) B only.
(C) Both A & B.
(D) Neither A nor B.
7. The piston is forced outward in the cylinder bore by
______.
(A) rotor movement
(B) seal twisting
(C) hydraulic pressure
(D) servo action
8. Four-piston calipers are usually constructed in ______
sections.
(A) two
(B) three
(C) four
(D) None of the above.
9. Technician A says that on some disc brakes, the lin-
ings are constantly touching the rotor. Technician B
says that piston adjustment is automatic on all disc
brakes. Who is right?
(A) A only.
(B) B only.
(C) Both A & B.
(D) Neither A nor B.
10. Guide pins are used on ______ disc brake calipers.
(A) single piston floating
(B) dual piston floating
(C) four piston fixed
(D) Both A & B.