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Exam 9: Parking Brakes

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Question 31

Multiple Choice

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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

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Question 32

Multiple Choice

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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

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Question 33

True/False

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

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

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

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

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

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

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?

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

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?

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?

The following statements about parking brakes are all true EXCEPT:

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? ​

The parking brake____________________connects the primary shoe to the secondary shoe .

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

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

Name the five major components of the parking brake system.

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

Discuss how the intermediate lever is designed to work.