A technician is checking the evaporator for leaks on an R-134a refrigerant system. Technician A says that it is acceptable to use shop air to pressurize the system and use an electrnic microphone to listen for leakage. Technician B says that it is acceptable to charge the system with R-134a and then insert the elctronic leak detector probe in the evaporator drain. Who is correct?

A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B


Answer: B

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Fill in the blank(s) with the appropriate word(s).

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Whose works of critical philosophy directly challenged religious views of reality by arguing Christian claims contradicted proven natural laws?

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