Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 51, Problem 11RQ
In the unapplied position, drum brake shoes arc held against the anchor pin by the.
- holddown springs
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In the unapplied position, drum brake shoes areheld against the anchor pin by the ___.a. holddown springsb. star wheel adjusterc. shoe holddownd. return springs
Which of the following statements about drum
brake shoes is not true?
a. Linings may be riveted or bonded to the shoes.
b. Shoe indentions hold the shoe in place
against the backing plate.
c. The shoe rim supports the shoe lining.
d. The primary/leading shoe is typically the one
that is positioned toward the front of the
vehicle.
Technician A says that flare nut or line wrenches should be sued to loosen or tighten brake line or tubing fittings
Technician B says that open-end wrenches will surround the fitting's nut and provide a positive grip on the fitting.
Who is correct?
Group of answer choices
Technician A only
Technician B only
Both Technicians A and B
Neither A nor B
Chapter 51 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 51 - Name the two methods of attaching brake lining...Ch. 51 - Explain how drum brakes create a self-multiplying...Ch. 51 - List at least five separate types of wear and...Ch. 51 - What is the job of wheel cylinder stops?Ch. 51 - Explain the operation of an integral drum brake...Ch. 51 - In a typical drum brake, which component provides...Ch. 51 - True or False? The name duo-servo drum brake is...Ch. 51 - Prob. 8RQCh. 51 - Which of the following statements about drum brake...Ch. 51 - Brake linings should be replaced when. linings are...
Ch. 51 - In the unapplied position, drum brake shoes arc...Ch. 51 - Duo-servo drum brakes are also known as what type...Ch. 51 - On most vehicles, the automatic adjuster cables or...Ch. 51 - Backing plates, struts, levers, and other metal...Ch. 51 - A buildup of brake dust and dirt between the...Ch. 51 - Technician A says that an out-of-round drum can...Ch. 51 - Technician A says that a grinding noise from a...Ch. 51 - It has been determined that chatter and brake pull...Ch. 51 - Technician A says that the discard dimension of a...Ch. 51 - After resurfacing a brake drum: Technician A...Ch. 51 - Drum linings are badly worn at their heel and toe:...Ch. 51 - When machining brake drums: Technician A tries to...Ch. 51 - While discussing what would happen if too much...Ch. 51 - Technician A checks the surface of the drum for...Ch. 51 - While discussing pull during braking: Technician A...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 2arrow_forwardWhen replacing brake pads on a vehicle: Technician A works on one wheel before beginning work on an-other. Technician B uses a minimum of 52 psi of air pressure to force the piston from the caliper housing. Who is correct?arrow_forwardWhile discussing quick take-up master cylinders: Technician A says that this design allows for increased braking power. Technician B says that this design is only used on drum brake systems. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- True or False? Disc brakes are not as likely to fade during heavy braking as are drum brakes.arrow_forwardwhich of the following statements about drum brakes equipped with star wheel automatic adjuster is correct? a) the adjustment mechanism is located on the primary shoe b)they are set to adjust when the vehicle is moving forward c)the adjustment mechanism is located at secondary shoe d)they automatically adjust when the brakes are not appliedarrow_forwardWhen checking the fifth wheel, coupling device, the Certified Inspector must check the condition and the mounting to the frame. True or False?arrow_forward
- True or False? The name duo-servo drum brake is derived from the fact that the self-energizing force is transferred from one shoe to another with the wheel rotating forward.arrow_forwardOn most vehicles, the automatic adjuster cables or levers are. installed on the secondary shoe set up to operate when the brakes are applied as the vehicle moves forward installed on the primary shoe set up to operate when the brakes are not appliedarrow_forwardWhen machining brake drums: Technician A tries to remove only enough metal to obtain a true, smooth surface. Technician B cuts the drum on the other side of the axle to the same diameter as the one that was cut first. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- True or False? Both the clutch and the brake system may share the same master cylinder.arrow_forwardTechnician A says that the discard dimension of a brake drum is the drums allowable machining dimension. Technician B says that the discard dimension is the allowable wear dimension. There must be 0.030 inch left for wear after machining. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhich of the following statements about drum brake shoes is not true? Web thickness varies only with changes in shoe size. Many shoes have indented places along the edge of the rim. The shoe rim is welded to the web. The primary/leading shoe is typically the one that is positioned toward the front of the vehicle.arrow_forward
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