Ch.99 brakes
A typical drum brake backing plate has how many shoe support pads (also called ledges)? a. 3 b. 4 C. 6
6
Drum brake shoes ________. a. can have riveted linings b. can have bonded linings c. can have one shoe that is longer than the other on the same wheel brake. D. All of the above
All of the Above
Which lining does most of the braking on a leading-trailing brake? A. Leading (forward facing) b. trailing (rearward facing) c. Depends on the speed of the vehicle
Leading (forward facing)
Technician A says that drum brakes can fail to slow the vehicle if driven through deep water. Technician B says that when drum brakes get hot, the brake pedal will drop because the drum expands away from the shoes. Both
Both A and B
Technician A says that the anchor pin (shoe anchor) is used to hold one end of the primary and secondary shoe return springs. Technician B says that shoe anchor prevents the brake shoes from rotating with drum when the brakes are applied. Both
Both A and B
Technician A says that the star wheel adjusters use different threads (left and right-handed) for the left and right sides of the vehicle. Technician B says that the threads and end caps of the adjusters should be lubricated with brake grease before installing. Both
Both A and B
Two technicians are discussing drum brake shoes. Technician A says that forward and rearward facing shoes are the same and can be installed in either position on any drum brake system. Technician B says that the darker color lining should always be placed toward the front of the vehicle. Neither
Neither A nor B
Which lining does most of the braking on a dual-servo brake? a. Front (forward facing) B. Rear (rearward facing =) c. Depends on the speed of the vehicle
Rear (rearward facing)
Two technician are discussing brake lining edge codes. Technician A says that the code can identify the manufacturer. Technician B says that all friction material from the same manufacture will have the same edge codes. A.Technician A only b. Technician B only
Technician A only
Two technicians are discussing drum brake self-adjusters. Technician A says that a frozen star wheel adjuster can cause the brakes to lock up due to the adjusting lever being unable to move the adjuster causing the linkage to bind. Technician B says that some brakes self-adjust when the brakes are applied rather than when released. a. Technician A only B. Technician B only
Technician B only
