Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 14, Problem 5MC
Cooling system hoses should be replaced when they are.
- hard (brittle)
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Chapter 14 Solutions
Automotive Technology
Ch. 14 - What is the most efficient way to increase a...Ch. 14 - Explain why a pressure relief valve is needed in...Ch. 14 - List five problems that can be caused by engine...Ch. 14 - Describe the procedure for using air bleed valves...Ch. 14 - Describe the simple test used to determine whether...Ch. 14 - True or False? The presence of air in the cooling...Ch. 14 - True or False? Oil pressure is determined by...Ch. 14 - True or False? To eliminate the drain of engine...Ch. 14 - Which of the following is a function of the...Ch. 14 - For every pound of pressure put on engine coolant,...
Ch. 14 - Which is not a typical method of driving the water...Ch. 14 - Which of the following is not an effective way to...Ch. 14 - Cooling system hoses should be replaced when they...Ch. 14 - Which of the following is not a true statement...Ch. 14 - An engine overheats in traffic but is fine when...Ch. 14 - Technician A says that excessive engine oil...Ch. 14 - While checking for conditions that might cause...Ch. 14 - When discussing oil consumption: Technician A says...Ch. 14 - Technician A says that if the PCV valve or...Ch. 14 - While bleeding air from a cooling system:...Ch. 14 - While diagnosing an engine that overheats after...Ch. 14 - While performing a cooling system service on a...Ch. 14 - While discussing the causes of extreme engine...Ch. 14 - While diagnosing the cause of air bubbles in the...
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- Briefly describe how to check for duct leakage to the out-doors using a duct blower and a blower door.arrow_forwardTechnician A says that coolant hoses should be squeezed to check for hardening or softening. Technician B says that coolant hoses should be visually inspected for swelling and cracks. Who is correct?arrow_forwardTrue or False: Turbulence in airflow causes friction drop.arrow_forward
- What should be done to prevent excessive deposits and buildup within the cooling system? Select one: a. Replace the coolant filter often b. Flush or replace coolant every year c. Use cold tap water when mixing antifreeze and water d. Use distilled water when mixing antifreeze and waterarrow_forwardThe presents of air in the cooling systems indicates the head gasket is faulty? True or falsearrow_forwardA technician is inspecting a vehicle and finds the upper radiator hose is collapsed, and the cooling system pulled into a vacuum when cold. Technician A states that a leak in the surge tank could be the cause. Technician B states that the radiator cap is most likely defective. Who is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor Barrow_forward
- An overheating vehicle is being discussed. Technician A states that the vehicle may be overheating becuase the heater control valve is stuck closed. Technician B states that the vehicle may be overheating because the PCM in not energizing the cooling fan relay. Who is correct?arrow_forwardCoolant hoses are being discussed. Technician A states that many manufacturers recommend coolant hose replacement on a maintenance schedule. Technician B states that coolant hoses can fail prematurely due to contamination by oil. Who is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor Barrow_forwardA vehicle is having its water pump replaced. When the water pump is removed, severe corrosion is found on the water pump impeller, and inside the engine. Technician A states that the radiator cap may be overpressurizing the system. Technician B states that the vehicle may have been run with 100% water in the cooling system for some time. Who is correct? Select one: a. Technician A only b. Technician B only c. Both Technicians A and B d. Neither Technician A nor Barrow_forward
- Technician A says that the presence of oil around a fitting of an air-conditioning line may indicate an oil leak but not a refrigerant leak. Technician B says that using an electronic leak detector is the best way to find the source of a refrigerant leak. 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_forwardThe following transducer is used to measure the temperature. a. Bourdon tube b. Bellows c. Thermocouple d. Strain Gaugearrow_forward
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