If the low side test pressure is not know, the maximum pressure that should be used for leak testing an R-22 refrigeration system with hermetic compressor is:

A) 150 psig. B) 300 psig. C) 200 psig. D) 250 psig.


A

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Demco Products, a company that manufactures stainless steel control valves, has a fund for equip­ment replacement that contains $500,000. The company plans to spend $85,000 each year on new equipment. (a) Estimate the number of years it will take to reduce the fund to no more than $85,000 at an interest rate of 10% per year. (b) Use the NPER function to determine the exact number of years.

What will be an ideal response?

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During an airbag deployment, the vehicle event data recorder (EDR) will record all of these EXCEPT ________

A) G-forces B) Brake on/off C) Passenger voice sounds D) Vehicle speed

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A wide band oxygen sensor is capable of detecting the air-fuel mixture in the exhaust from ________ (rich) to ________ (lean)

A) 12:1; 15:1 B) 10:1; 23:1 C) 13:1; 16.7:1 D) 8:1; 18:1

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Why should a cleanup filter drier always be used after performing a system flush?

What will be an ideal response?

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