Deck 9: Parking Brakes

Question 1

The following statements about parking brakes are all true EXCEPT:

A)the parking mechanism may have internal or external moveable friction components.
B)drum parking brakes on a four-wheel disc brake system use hydraulics to apply the brakes.
C)many parking brake systems use levers with a pedal to apply the brake.
D)most drum parking brakes use one or two levers within the drum brake assembly to apply and equalize the force between the two shoes.

Answer 1

B

Question 2

If the brake pedal does not return to the released position or is  sticking or binding, what is the most likely cause ?

A)Rear brake out of adjustment
B)Dry or corroded cable
C)Excessive cable slack
D)None of the above

Answer 2

B

Question 3

A screw and nut assembly is used to:

A)apply rear disc parking brakes.
B)apply front disc parking brakes.
C)apply rear drum parking brakes.
D)apply front drum parking brakes.

Answer 3

A

Question 4

Technician A says the parking brake shown should be adjusted with the parking brake applied. Technician B says each wheel cable must be adjusted separately. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 5

Technician A says an auxiliary drum parking brake has a separate drum brake assembly on the inside of the rear disc brake hub and rotor. Technician B says auxiliary drum parking brakes are often used with rear standard drum brakes. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 6

Technician A says most parking brake systems use a cable to connect the parking brake lever or pedal to the braking assemblies. Technician B says the cable assemblies are nonadjustable and must be replaced when the brake no longer works. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 7

Parking brake systems:

A)apply kinetic energy and friction to stop and hold the vehicle.
B)use static energy and friction to apply the brakes.
C)are applied by hydraulics acting on parking brake pistons.
D)none of the above.

Question 8

All of the following statements about some electric parking brakes are true EXCEPT:

A)they use a cable to apply the rear calipers.
B)they apply when the vehicle is placed in drive.
C)they are integrated with the theft deterrent system.
D)they use an auto-hold feature.

Question 9

Technician A says the tool in the following figure is being used to connect the parking brake cable into the backing plate. Technician B says the tool is being used to disconnect the parking brake cable from the backing plate. Who is correct? ​

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 10

All of the following statements about rear drum parking brakes are true EXCEPT:

A)they make use of the rear drum brake components.
B)a lever inside the drum is moved by the brake cable.
C)the lever forces the wheel cylinder pistons out to force the brake shoes against the drum.
D)the brake cable runs through a metal conduit that enters the drum assembly through the backing plate.

Question 11

What type of mechanism keeps the parking brakes levers in the applied position?

A)A cable and latch
B)A ratchet and pawl
C)A starwheel and lever
D)A link and lever assembly

Question 12

Technician A says to adjust the service brakes before adjusting the parking brake. Technician B says to clean the threads of the adjusting nut before adjusting the parking brake. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 13

Technician A says the parking brake is part of the hydraulic braking system. Technician B says the parking brake is usually operated through a cable-and-lever system. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 14

Technician A says the test depicted in the illustration is for a ground side brake warning lamp switch. Technician B says the test shown can be used to check continuity of the switch in both the ON and OFF positions. Who is correct? ​

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 15

Technician A says integral disc parking brakes use the normal disc calipers as parking brakes to hold the vehicle while it is parked. Technician B says auxiliary drum parking brakes are contained inside the rotor of some rear disc brakes. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 16

The following illustration shows a:

A)ball-and-ramp rear disc parking brake.
B)screw-and-nut rear disc parking brake.
C)front disc parking brake.
D)rear disc self-adjuster.

Question 17

Technician A says that to remove a parking brake control mechanism, the parking brake should be fully applied before raising the vehicle. Technician B says that to remove parking brake control components, relieve parking brake cable tension by backing off the adjusting nut from the brake cable equalizer. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 18

Technician A says the caliper in the following figure has an integral parking brake. Technician B says the caliper in the following figure is used on the front axles. Who is correct? ​

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 19

Technician A says the parking brake should hold the vehicle on a 30 percent grade in both the forward and reverse directions. Technician B says the parking brake must be able to stop a vehicle moving 5 mph within 100 feet. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 20

Technician A says parking brake cables may be coated with nylon or plastic for protection against corrosion. Technician B says most control cables and rear brakes are partially covered with a flexible metal conduit or housing. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 21

Technician A says an over adjusted starwheel may cause the parking brake to release. Technician B says a misadjusted brake shoe adjuster may prevent the parking brake from applying sufficiently to hold the vehicle. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 22

Describe the steps involved in diagnosing a potential parking brake problem on manually applied systems.

Question 23

List some advantages to the electric parking brake system.

Question 24

Describe the two most common kinds of caliper-actuated parking brakes.

Question 25

Explain the typical procedure for freeing seized cables.

Question 26

Technician A says to test a typical parking brake, first gain access to the switch, which is often the hardest part of the job. Technician B says for lever-operated parking brakes, it may be necessary to remove all or part of the center console. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 27

Technician A says a stuck parking brake cable may cause a hard parking brake pedal  with little braking affect. Technician B says a parking brake that holds only one wheel may have a broken equalizer. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 28

Explain why modern brake cables are coated with nylon or plastic.

Question 29

Technician A says true electric parking brakes are being introduced today; the first is an extension of the ABS and active brake systems . Technician B says w hen parking, the driver can switch on the parking brakes, and the hydraulic modulator applies fluid pressure to at least the rear wheels . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 30

Technician A says the control lever for lever-operated brakes is installed between the two front seats. Technician B says the lever-operated parking brakes on some Chevrolet Corvettes are examples of a design in which the lever drops back to the floor after the brakes are applied . Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 31

Which of the following is a true statement of parking brakes on a drum brake system?

A)The primary shoe applies servo action to the secondary shoe during parking brake application.
B)The trailing shoe applies the most force during parking brake application.
C)The parking brake strut connects the primary shoe to the secondary shoe.
D)The parking brake is applied by levers or screws acting against service brake pistons.

Question 32

Technician A says a sticking parking brake pedal may be caused by weak shoe return springs. Technician B says the parking brake lever may stick because of a damaged brake hose. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 33

Describe the Continental Teves system.

Question 34

Discuss how the intermediate lever is designed to work.

Question 35

Name the five major components of the parking brake system.

Question 36

Electrical parking brakes are being discussed. Technician A says some systems apply a drum-in-hat type brake. Technician B says some systems apply a disc brake. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 37

If the rear brakes are to be replaced on a system with integral parking brakes, the calipers have to be "opened" with a scan tool. List the general procedure steps for a VW vehicle .

Question 38

Technician A says s ome heavy-duty trucks use a separate set of shoes or pads, such as transmission or drive shaft parking brakes, which are called independent parking brakes . Technician B says these brakes lock the drive shaft in place to keep the vehicle from rolling. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 39

Each of the following statements about parking brakes is true EXCEPT:

A)on a driveline parking brake, the expanding shoes are activated by levers and cams.
B)the shoes for the auxiliary parking brakes on a four-wheel disc should be inspected each time the pads are changed.
C)the disc parking brake pads are adjusted by the piston seal.
D)a broken return spring on a shoe may cause the parking brake to grab.

Question 40

Describe the "press to release" feature on parking brakes.

Question 41

Auxiliary drum parking brakes are contained inside the rotor of some rear disc brakes.

Question 42

Parking brake systems, such as transmission or drive shaft parking brakes, are called ____________________ parking brakes.

Question 43

Ford's floating caliper rear disc brakes are the most common example of the ball-and-ramp parking brake mechanism .

Question 44

The caliper of a rear disc parking brake is activated by a mechanism that mechanically moves the caliper piston.

Question 45

The cable that runs from the brake control mechanism to the equalizer is known as the rear cable.

Question 46

Electric parking brakes are controlled by the driver and the parking brake ___________________.

Question 47

____________________means not round or concentric .

Question 48

Electronically operated parking brakes are ____________________ when the vehicle is taken out of park .

Question 49

The switch that is operated when the parking brake is applied turns on the ____________________ light.

Question 50

Automatic brake release mechanisms have some provision for manual release if the automatic system fails.

Question 51

In the parking brake system, in order to provide a balanced braking force to each wheel, a(n)____________________ is used.

Question 52

Equalizers are used to balance the forces applied to each rear parking brake during application.

Question 53

Integral parking brakes apply the service brake shoes or pads.

Question 54

Parking brakes are also designed for stopping the vehicle in an emergency.

Question 55

Equalizer levers are used to reduce the effort of the driver applying the parking brakes.

Question 56

Most auxiliary drum parking brakes have manual star wheel adjusters similar to the adjusters on drum service brakes .

Question 57

A small amount of brake drag is normal for rear disc brakes, but heavy drag usually indicates an over-adjusted parking brake mechanism. How do you determine if the mis-adjustment is in the linkage or in the caliper self-adjusters?

Question 58

The parking brake____________________connects the primary shoe to the secondary shoe .

Question 59

Electric parking brakes may operate conventional parking cables to apply the rear disc brakes.

Question 60

General Motors' floating caliper rear disc brakes are the most common example of the screw-and-nut parking brake mechanism .

Question 61

If the rear brakes are to be replaced on a system with integral parking brakes, the calipers have to be "____________" with a scan tool .

Question 62

_________________ parking brakes use the normal disc calipers as parking brakes to hold the vehicle while it is parked .