Deck 103: Parking Brake Operation, Diagnosis, and Service

Question 1

Technician A says that the parking brake cable should be adjusted at each wheel. Technician B says that the parking brake cable adjustment is usually done after adjusting the rear brakes. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 1

Technician B only

Question 2

Technician A says that the parking brake hand lever can turn on the red brake warning lamp. Technician B says that a foot-operated parking brake can turn on the red brake warning lamp. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 2

Both technicians A and B

Question 3

Technician A says that if the parking brake cable is adjusted too tight, the rear brakes may drag and overheat. Technician B says that the parking brake is adjusted properly if the cable is tight when in the released position. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 3

Technician A only

Question 4

On most drum brake systems, the parking brake lever and strut transfer the pulling force of the parking brake cable against the ________.

A)Secondary shoe
B)Primary shoe

Question 5

On most vehicles, the anti-rattle spring (strut spring) should be installed on the parking brake strut toward the ________ of the vehicle.

A)Front
B)Rear

Question 6

In a typical integral rear disc brake caliper, the parking brake cable moves the ________.

A)Auxiliary piston
B)Caliper
C)Rotor
D)Actuator screw

Question 7

The rear brakes should be inspected, and adjusted if necessary, if the parking brake requires more than ________.

A)20 clicks
B)10 clicks
C)5 clicks
D)15 clicks

Question 8

A rear drum brake is being inspected. The primary shoe is not contacting the anchor pin at the top.
Technician A says that this is normal. Technician B says that the parking brake cable may be adjusted too tight or is stuck. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 9

Technician A says that a hose clamp can be used to compress the retainer fingers of a parking brake cable in order to remove it from the backing plate. Technician B says a box-end wrench can be used instead of a hose clamp. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 10

Technician A says that an electric parking brake (EPB) uses an electric motor to pull on the parking brake cable. Technician B says that some electric parking brake systems use a computer controlled motor attached to the caliper. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 11

Technician A says that the parking brake cable adjustment should be performed before adjusting the rear brakes. Technician B says that the parking brake cable should allow for about 15 "clicks" before the parking brake holds. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 12

Excess slack in the parking brake cables can be eliminated in most cases by an adjustment at the ________.

A)Star wheel adjusters
B)Operating lever
C)Link
D)Equalizer

Question 13

Two technicians are discussing parking brake systems that mechanically actuate the rear disc brakes.
Technician A says that the calipers are self-adjusting. Technician B says that the actuating cables are adjustable at the equalizer. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 14

The parking brake warning light is independent of all other systems.

Question 15

Federal regulations require the parking brake to hold the vehicle in position on a 20 percent grade.

Question 16

On caliper-actuated disc parking brakes, adjustment is automatic.

Question 17

Technician A says that the parking brake is controlled by a lever. Technician B says that a pedal may be used to apply the parking brake. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 18

Automatic parking brake releases ________.

A)Use an electric solenoid
B)Use a vacuum servo
C)Either A or B
D)Neither A nor B

Question 19

Technician A says that a parking brake equalizer may consist of a cable guide attached to a threaded rod. Technician B says that a brake equalizer balances the force from the parking brake control. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 20

A common parking brake cable adjuster uses ________.

A)A lock washer
B)An eccentric anchor
C)A stacked washer
D)Two jam nuts

Question 21

Rear-disc auxiliary drum parking brakes ________.

A)Use a dual-servo friction assembly
B)May be adjusted through an opening in the drum
C)Both A and B
D)Neither A nor B

Question 22

A vacuum parking brake release operates when the transmission is placed into park.

Question 23

The parking brake performance test must be performed with the vehicle facing ________.

A)Uphill
B)Downhill
C)Both A and B
D)Neither A nor B

Question 24

Technician A says that a vehicle can fail a parking brake performance test if the linings are contaminated. Technician B says that worn-out base brakes will NOT affect parking brake performance. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 25

Identify the equalizer in this illustration.

A)A
B)B
C)C
D)D