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রেফ্রিজারেশন এন্ড এয়ারকন্ডিশনিং MCQ
42. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device-
electrically operated throttling valve
manually operated valve
thermostatic valve
capillary tube
46. In refrigerator, liquid receiver is required between condenser and flow controlling device, if quantity of refrigerant for system is-
less than 2kg
more than or equal to 3.65kg
more than 10kg
there is no such consideration
49. Highest temperature refrigeration cycle should be encountered In near critical temperature of refrigerant--
above critical temperature
at critical temperature
much below critical temperature
none
56. One of the purposes of subcooling the liquid refrigerant is to-
reduce compressor overheating
reduce compressor discharge temperature
increase cooling effect
ensure that only liquid and not the vapour enters the expansion (throttling) valve