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MEO Class II – EK-General : 2021/NOV/09 – 2013/DEC/07 – 2013/OCT/07 – 2013/MAR/09 – 2012/APR/08
Question
Q9. (a) For Freon-22 vapor compression refrigeration machine, state how each of the following faults are indicated and how they are remedied:
(i) Air in the system
(ii) Moisture in the system
(iii) Undercharge
(iv) Overcharge
(b) Describe with a diagram detailing the devices incorporated into the refrigeration system to protect the machinery and equipment against malfunction.
Asked in Year/Month/Ques No.