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 55, Problem 3ASRQ
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
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Chapter 55 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 55 - What should you do if you suspect that an...Ch. 55 - Explain how dye can be used to find leaks in the...Ch. 55 - What is the purpose of the thermostatic switch in...Ch. 55 - Why should the probe of an electronic leak...Ch. 55 - How will air trapped in the A7C system affect...Ch. 55 - Which of the following statements best defines the...Ch. 55 - Which of the following statements is not true...Ch. 55 - To charge an air-conditioning system while it is...Ch. 55 - All of the following are true statements about...Ch. 55 - A very important part of a performance test on an...
Ch. 55 - While conducting a pressure test on an A/C system,...Ch. 55 - The high-side pressure on a system with a cycling...Ch. 55 - When checking an A/C system, the evaporators inlet...Ch. 55 - All of these are good reasons for replacing an...Ch. 55 - In an AZC system, if the low-side pressure is...Ch. 55 - Technician A says that evacuating (pumping down)...Ch. 55 - Technician A says that some refrigerant leaks can...Ch. 55 - Technician A says that the presence of oil around...Ch. 55 - Technician A says that a faulty accumulator will...Ch. 55 - Technician A says that air in the system can cause...Ch. 55 - Technician A feels up and down the face or along...Ch. 55 - Technician A says that a manifold gauge set can be...Ch. 55 - While discussing an inoperative blend air door:...Ch. 55 - Two technicians were discussing how comparing the...Ch. 55 - While conducting an A/C system performance test:...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Why should the probe of an electronic leak detector be placed below the area being checked?arrow_forwardWhile discussing a pressure test: Technician A says that a pressure drop of more than 15 psi during a shift indicates a possible leak. Technician B says that any pressure drop between shifts indicates a problem. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that evacuating (pumping down) an air-conditioning system removes air and moisture from the system. Technician B says that evacuating (pumping down) an air-conditioning system removes dirt particles from the system. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- True or False? A compression gauge will show the amount of air leaking through a cylinder as a percentage.arrow_forwardThe following transducer is used to measure the temperature. a. Bourdon tube b. Bellows c. Thermocouple d. Strain Gaugearrow_forwardWhat is the function of the following temperature measuring instruments Thermometers Bulb and Capillary Sensor Sealed Bellowsarrow_forward
- When performing a coolant pressure test, Technician A says to pressurize the system to the pressure shown on the radiator cap. Technician B says that the coolant should be drained before performing the test. Who is correct? Select one: a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_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_forwardWhile looking at the results of an oil pressure test: Technician A says that higher than normal readings can be caused by using oil that is too thin. Technician B says that higher than normal readings can be expected on a cold engine. Who is correct? Technician A Technician Both A and B Neither A nor Barrow_forward
- While discussing the results of an oil pressure test: Technician A says that when the fluid pressures are high, internal leaks, a clogged filter, low oil pump out put, or a faulty pressure regulator valve are indicated. Technician B says that if the fluid pressure increased at the wrong time, an internal leak at the servo or clutch seal is indicated. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardTrue or False? Oil pressure is determined by whether the pump is a gear type or rotor type and by oil clearances, the pumps pressure regulator valve, and oil viscosity.arrow_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_forward
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