Define servo action 68 Because of servo action moreless wheel cylinder

Define servo action 68 because of servo action

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67. Define servo action._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 68. Because of servo action, (more/less) _____ wheel _________________________________________________ cylinder hydraulic pressure is needed to apply the brakes. 69. Name the three switches commonly used in brake systems. _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ ________ 70. Technician A says most modern cars use a mechanical stoplight switch. Technician B says most modern cars use a hydraulically operated stoplight switch. Who is right? (A) A only.(B) B only.(C) Both A and B.(D) Neither A nor B. 71. What switch warns the driver of a pressure loss on one side of a dual brake system? _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ 72. Where is the low-fluid warning light switch usually mounted?______________________________________________________________________________________________________________________________________________________________________________________________________________________ 73. Many brake systems use _____ to regulate the pressure to each wheel cylinder. ________ 74. The metering valve prevents the front brake from applying until the pressure reaches _____.
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Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Chapter 80 Brake System Technology 537 Name _________________________________________________________________________ ________ 75. Technician A says a metering valve is designed to equalize braking action at each wheel during light braking. Technician B says a proportioning valve is used to equalize pressure in systems with front disc and rear drum brakes. Who is right? 76. Where is the proportioning valve normally located? _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ 77. A(n) _____ valve is a single unit that functions as a _________________________________________________ brake warning light switch, a metering valve, and/or a proportioning valve. Parking Brakes 78. Parking brakes provide a(n) _____ means (cables and _________________________________________________ levers) of applying the brakes. 79. Describe the parking brake action on vehicles with disc brakes. _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ Hybrid Brakes 80. Today’s hybrid vehicles are equipped with _____ _________________________________________________ braking systems.
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