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GATE ME 2021 : Thermodynamics & Applications Quiz 7 (App update required to attempt this test)
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Question 1
Which of the following properties of refrigerant is not desirable?
Question 2
In vapour compression refrigeration system, refrigeration effect is 40 kJ/kg and COP of the system is 4. Find heat rejected in the condenser.
Question 3
In an ideal VCR cycle of used R- 134A as refrigerant used as a heat pump. The enthalpy at inlet to compressor and exit of compressor are 110kJ/kg and 235kJ/kg respectively. The enthalpy at exit of condenser is 95kJ/kg. If work input to compressor in 5kW then calculate rate of heat extraction from evaporator(kW) and COP of heat pump.
Question 4
In a Bell Coleman refrigeration cycle, air enters the compressor at atmospheric pressure and 280K with a flow rate of 2.2 m3/s. The pressure ratio is 4 and the inlet turbine temperature is 340K. The refrigeration capacity is _______TR.
Question 5
The power required per ton of refrigeration is 0.35 kW. Find the heat rejection ratio _________?
Question 6
In an absorption type refrigeration system, the heating, cooling and refrigeration takes place at 197
C, 17
C and -3
C respectively. The ideal Coefficient of Performance of the given VARS is ________
C, 17C and -3C respectively. The ideal Coefficient of Performance of the given VARS is ________- 847 attempts
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Apr 13ESE & GATE ME
