Test: RAC Level - 1 - Mechanical Engineering MCQ
25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) - Test: RAC Level - 1
Which one of the following is correct relation between (COP)HP and (COP)R
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A heat pump operating based on a reversed carnot cycle between temperature T1 and T2, where T1 is higher absolute temperature and T2 is lower absolute temperature then the COP of heat pump is
A refrigerator operating based on reversed carnot cycle between T1 and T2 where T1 is high temperature and T2 is lower temperature then COP of refrigerator is
Horse power and kW required per tonne of refrigeration is expressed as
The COP of a heat pump can be increased either by decreasing TH by ΔT or by increasing TL by ΔT. The new COP of the heat pump is
The coefficient of performance of a domestic refrigerator is __________ as compared to a domestic air-conditioner.
Which one of the following sequence is correct in vapour compression cycle
In a vapour-compression refrigeration cycle, if h1 and h2 denote the enthalpies at inlet and exit of the compressor respectively, h3 is the enthalpy at the exit of the condenser and h4 is the enthalpy at the inlet of the evaporator, the COP for the cycle is
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the
In a vapour compression cycle, the refrigerant immediately after expansion valve is
An important characteristic of absorption system of refrigeration is
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5 videos|103 docs|59 tests
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5 videos|103 docs|59 tests
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