Brakes ch. 10

C) 6

A typical drum brake backing plate has how many shoe support pads (also called ledges)? A) 3 B)4 C)6 D)8

B) rear ( rearward facing )

Which lining do most of the braking on a dual-servo brake? A) Front ( forward facing) B) Rear ( reward facing) C) both contributor equally D) Depends on the speed of the vehicle

A) leading (forward facing )

Which lining does most of the braking on a leading-trailing brake? A) leading (forward facing) B) trailing (reward facing) C) both contribute equally D) depends on the speed of the vehicle

A) technician A only

Two technicians 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 manufacturer will have the same edge codes. Which technician is correct? A) technician A only B) technician B only C) technician C only D) neither

B) technician B only

Two technicians are discussing drum brake self-adjusters. Technician A says that a frozen starwheel 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. Which technician is correct? A) technician A only B) technician B only C) both D) neither

D. Neither Technicians

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. Which technician is correct? A) technician A B) technician B C) both technicians D) Neither Technician

D) all of the above

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) neither

C) both technician

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. Which technician is correct? A) technician A only B) technician B only C) both technician D) neither

C) both technician

Technician A says that self-adjusters used on most drum brakes work when the brakes are applied, then release while traveling in reverse. Technician B says that some adjusters can overadjust if the brake drums are hot. Which technician is correct? A) technician A only B) technician B only C) both technician D) neither

C) both technician

Technician A says that starwheel adjusters use different threads (left- and right-handed) for the left and right sides of the vehicle. Technician B says that a pawl controls the teeth of the starwheel adjuster. Which technician is correct? A) technician A only B) technician B only C) Both technician D) neither