Tag: #expansionvalve
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EK General Dec 2023 (Q7)
In a vapor compression refrigeration system, state how EACH of the following faults are indicated and how they are remedied: (a) Air in the refrigerant (2) (b) Oil in the refrigerant (2) (c) Moisture in the refrigerant (2) (d) Undercharge of the refrigerant (2) (е) Overcharge of the refrigerant (2) Reefer & A/C Dec 2023…
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EK General Oct 2022 (Q7)
With reference to a vapor compression refrigeration plant (a) Explain the purpose of EACH of the following (i) Expansion valve (2) (ii) Room thermostat (2) (iii) High pressure cut out (2) (b) Explain why EACH of the following conditions are desirable (i) Superheating at the compression suction (2) (ii) Undercooling at the condenser outlet (2)…
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EK General Jul 2022 (Q7)
(a) Sketch a diagrammatic arrangement of a fully automatic provision refrigeration system incorporating a number of cold rooms. (5) (b) Explain the sequence of events from a demand for refrigerating effect in a cold room until the room has reached its desired temperature. (5) Reefer & A/C Jul 2022 (Q7)
UKM Tuticorin 