Bundle: Automotive Technology: A Systems Approach, 6th + LMS Integrated for MindTap Auto Trades Printed Access Card
6th Edition
ISBN: 9781305366749
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 22RQ
The boiling point of the coolant in an engines cooling system is raised by the
- thermostat
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The pressure of refrigerant at the inlet compressor is called;
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Chapter 4 Solutions
Bundle: Automotive Technology: A Systems Approach, 6th + LMS Integrated for MindTap Auto Trades Printed Access Card
Ch. 4 - Prob. 1RQCh. 4 - Explain the four strokes of the internal...Ch. 4 - In addition to the battery, what does the charging...Ch. 4 - Which of the following is not a common emission...Ch. 4 - Automatic transmissions use a instead of a clutch...Ch. 4 - Which of the following is not one of the strokes...Ch. 4 - Prob. 7RQCh. 4 - Which is not a common automotive fuel? Gasoline...Ch. 4 - What does the valve train do? It delivers fuel to...Ch. 4 - Technician A says that liquid cooling an engine...
Ch. 4 - Prob. 11RQCh. 4 - Which emission control system introduces exhaust...Ch. 4 - Prob. 13RQCh. 4 - Technician A says that a transaxle delivers torque...Ch. 4 - Which of the following is not part of the running...Ch. 4 - Which of the following statements about unibody...Ch. 4 - Which type of transmission uses pulleys to change...Ch. 4 - Prob. 18RQCh. 4 - Prob. 19RQCh. 4 - What two major engine components work together to...Ch. 4 - Technician A says that an air-conditioning system...Ch. 4 - The boiling point of the coolant in an engines...Ch. 4 - While discussing the operation of air-conditioning...Ch. 4 - Prob. 24RQCh. 4 - Which of the following is not accomplished by the...
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- Technician A says that air in the system can cause excessive pressure within the system, restricting the refrigerants ability to change its state from gas to liquid within the refrigeration cycle. Technician B says that moisture can cause freeze-up at the cap tube or expansion valve, which restricts refrigerant flow or blocks it completely. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardTechnician A says that some refrigerant leaks can also be traced to pinholes in the evaporator caused by acid, which forms when water and refrigerant mix. Technician B says that leaks are most often found at the compressor hose connections and at the various fittings and joints in the system. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardTechnician A feels up and down the face or along the return bends of the condenser for a temperature change and says that there should be a gradual change from hot to warm from the bottom to the top. Technician B says that a restriction in the condenser will be evident by a sudden change in temperature. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- While discussing an inoperative blend air door: Technician A says that to check the proper functioning of the ductwork, move the temperature control lever to see if any change at the doors occurs. If it does not, shut off the air conditioner and turn on the heater. Move the temperature control arm again to see if any change occurs. If not, check the cable and the flap door connected to the temperature control lever. Technician B says that in some cases you can reach under the dash to reconnect the cable or free a stuck flap. Who is right? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardTechnician A says that when the refrigerant is pumped out of the compressor and sent to the condenser, heat in the refrigerant is moved to the outside air by conduction and convection. Technician B says that the refrigerant leaves the bottom of the condenser as a high-pressure, high-temperature liquid. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhat special valve is used in a refrigerated air drier? A. Four-way valve B. Defrost valve C. Three-way valve D. Hot gas bypass valvearrow_forward
- Briefly describe how the scroll compressor compresses refrigerant gas.arrow_forwardWhich of the following statements about PTC heaters is not true? Some vehicles have a PTC heating element in the heater core. Some vehicles have a PTC element installed in an air duct from the blower housing to increase the air temperature in the ducts. PTC heaters are electronically controlled and work with the cooling system to provide hot coolant. PTC elements are small ceramic stones that react quickly to changes in current.arrow_forwardBriefly describe an oil-less refrigerant recovery unit.arrow_forward
- True or False: All reciprocating compressors start up fully loaded.arrow_forwardA 2 inch-diameter horizontal jet of water with a velocity of 20 ft/s relative to the ground strikes a flat plate that is attached to a car moving at a velocity of Ve. After it hits, the water splatters in all directions in the plane of the plate. Investigate the effect of the car velocity V. on the force exerted on the plate.arrow_forwardHeat Exchanger Problem Thermo Fluidarrow_forward
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