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1. |
Operating pressures of the refrigerants at the evaporator in the ascending order for any application are |
A. | R11, R12, R717, R22 |
B. | R22, R717, R12, R11 |
C. | R11, R12, R22, R717 |
D. | R717, R22, R11, R12 |
Answer» B. R22, R717, R12, R11 | |