Mechanical Engineering :: Heat Transfer,Refrigeration and Air Conditioning
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According to Newton's law of cooling, the heat transfer from a hot body to a cold body is
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The condition of refrigerant as it leaves the compressor in a vapour compression system is
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The super-heating in a refrigeration cycle
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Thermal conductivity of a material may be defined as the
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Air refrigeration cycle is used in
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Reynolds number is the ratio of
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A.
quantity of heat flowing in one second through a slab of the material of area 1 cm2 and thickness 1 cm when its faces differ in temperature by 1° C
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B.
quantity of heat flowing in one second through one cm of material when opposite faces are maintained at a temperature difference of 1° C
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C.
heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces
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D.
all of the above
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