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 50, Problem 7RQ
Explain why a height-sensing proportioning valve is required on some vehicles.
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Chapter 50 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 50 - Explain why bleeding air out of a hydraulic system...Ch. 50 - Explain why modern hydraulic braking systems are...Ch. 50 - Describe the functions of the hydraulic system...Ch. 50 - When the brakes are applied on a moving car, the...Ch. 50 - What is the purpose of the master cylinder vent...Ch. 50 - What is the purpose of the master cylinder...Ch. 50 - Explain why a height-sensing proportioning valve...Ch. 50 - A three-function combination valve has a brake...Ch. 50 - Explain how vacuum is used to provide a power...Ch. 50 - The purpose of the master cylinder is to. generate...
Ch. 50 - Which of the following can lead to brake hose...Ch. 50 - True or False? Metering and proportioning valves...Ch. 50 - Which type of brake requires greater application...Ch. 50 - Which of the following is not a factor in...Ch. 50 - Which of the following could cause an extremely...Ch. 50 - A vehicles power brakes are grabbing: Technician A...Ch. 50 - While discussing what affects the amount of...Ch. 50 - The metering valve portion of a combination valve...Ch. 50 - While discussing quick take-up master cylinders:...Ch. 50 - While bleeding a brake system: Technician A...Ch. 50 - The basic frictional parts of a brake system are...Ch. 50 - Vehicle dynamics during braking are being...Ch. 50 - Pressure bleeding is being discussed: Technician A...Ch. 50 - Technician A says that the master cylinder should...Ch. 50 - The hydraulic system of the hydro-boost and...
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- Describe the difference between an argon cylinder valve fitting and a carbon dioxide cylinder valve fitting.arrow_forwardA cylinder leakage (leak-down) test indicates 30% leakage, and air is heard coming out of the air inlet. Technician A says that this is a normal reading for a slightly worn engine. Technician B says that one or more intake valves are defective.arrow_forwardExplain the benefit of using 4 valves per cylinder (2 Intake and 2 exhaust) instead of 2 valves per cylinder (1 intake and 1 exhaust)arrow_forward
- INTRODUCTION ABOUT VALVE SYSTEM IN INTERNAL COMBUSTION ENGINEarrow_forwardTopic: Pneumatic Systems Explain the following in at least 10 sentences: How do relief valves work?arrow_forwardTechnician A says that the purpose of a valve body is to increase oil pressures in response to increases in engine speed. Technician B says that valve bodies are normally fitted with three different types of valves, which start, stop, or use movable parts to regulate and direct the flow of fluid throughout the transmission. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- Which of the following is true about a sequence valve? Sequence valves: A. Allow a check valve to override its normal operation B. Controls the rate of air flow in a pneumatic system C. Direct air flow to a different area in a circuit when actuated by pressure level D. Open and close the intet and outlet ports in a pneumatic systemarrow_forwardBriefly describe the types of piercing valves used in the industry, and list some advantages and disadvantages of both.arrow_forwardName the two most common problems that occur with power seats.arrow_forward
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