The lowest thermal diffusivity is of

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3. During dehumidification process, the relative humidity
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6. In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering…
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9. The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.
10. Moisture in Freon refrigeration system causes
11. In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature
12. A good refrigerant should have
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14. In a vapour compression system, the condition of refrigerant before entering the expansion or throttle…
15. In larger industrial and commercial reciprocating compression systems, refrigerant widely used is
16. Allowable pressure on high pressure side or ammonia absorption system is of the order of
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18. The superheated vapour region, in a pressure enthalpy chart, is represented by the space
19. Choose the correct statement
20. The capillary tube, as an expansion device, is used in
21. The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed…
22. Presence of moisture in a refrigerant affects the working of
23. The formation of frost on cooling coils in a refrigerator
24. Air refrigeration cycle is used in
25. In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
26. In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water…
27. One tonne of refrigeration (1TR) means that the heat removing capacity is
28. Which of the following statement is correct?
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