Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 51, Problem 2ASRQ
Technician A says that a grinding noise from a drum brake when it is not applied can be caused by a bad wheel bearing. Technician B says that a grinding noise from a drum brake when it is not applied can be caused by worn brake hardware. Who is correct?
- Technician A only
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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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- The basic frictional parts of a brake system are being discussed: Technician A says that the harder the frictional parts are pushed together, the higher the friction. Technician B says that the harder the frictional parts are pushed together, the more heat is developed. 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_forwardWhile discussing how to remove the piston from a brake caliper: Technician A says that the dust boot should be removed, then a large dull screw-driver should be inserted into the piston groove to pry the piston out. Technician B says that air pressure should be injected into the bleeder screw’s bore to force the piston out of the caliper. Who is correct?arrow_forward
- 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.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_forwardTrue 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_forward
- Technician A says that fixed calipers use a piston on each side of the rotor to apply the brakes. Technician B says that sliding calipers typically use only one piston or pistons on one side of the rotor. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhich of the following is not done when performing a brake service? A. Measure the rotor for out of round B. Measure the pad thickness C. Clean and lubricate moving parts D. Inspect the calipers for any leaks or damagearrow_forwardCan someone assist me in filling out this brake systems matching sheet please?arrow_forward
- A drum brake is being inspected, and is found to be out-of-round. Technician A says the drum must be discarded. Technician B says you can machine it back into roundness, so long as its diameter isn't too wide. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or Barrow_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_forwardTechnician A says that an out-of-round drum can cause a pulsating brake pedal. Technician B says that an out-of-round drum can cause the brakes to grab. Who is correct?arrow_forward
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