Drum Brake Components and Service

The backing plate is a stationary support for all of the following, EXCEPT:

• The anchor pins.

• The anchor plates.

• The drum.

• The brake shoes.

Technician A says that the primary shoe always faces the front of the vehicle. Technician B says that the primary shoe performs more of the braking job. Who is right?

• Tech A

• Tech B

• Both A & B

• Neither A nor B

The brake shoe ______ holds and supports the lining.

• Table

• Web

• Rivets

• Cement

Technician A says that eccentric ground brake shoes are used on large trucks. Technician B says that eccentric ground brake shoes allow for shoe and drum flexing. Who is right?

• Tech A

• Tech B

• Both A & B

• Neither A nor B

Shoe return springs are always _____ springs.

• Coil

• Clip

• Flat Strip

• Torsion

The keystone anchor is used to allow the brake shoes to centralize against the _____.

• Drum

• Backing plate

• Wheel cylinder pistons

• Hold-down springs

Technician A says that adjusting cams are seldom used on modern brakes. Technician B says that there is one adjusting cam for each shoe. Who is right?

• Tech A

• Tech B

• Both A & B

• Neither A nor B

A floating star wheel assembly is not attached to the ______.

• Primary shoe

• Secondary Shoe

• Pivot nut

• Backing plate

All of the following are types of star wheel self- adjusters, EXCEPT:

• Cable

• Bar

• Lever

• Link

All of the following statements about brake drums are true, EXCEPT:

• Brake drums can be made of cast iron or aluminum.

• Modern brake drums are machined on their internal surface.

• Brake drums have openings in the lining to aid in cooling.

• Most brake drums have markings to indicate maximum allowable wear.