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GATE ME 2022: Refrigeration & Air conditioning

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Question 1

The chemical name of Freon 22 is

Question 2

The specific humidity of moist air is 0.0107 kg/kg of dry air . The total atmospheric pressure is 98.75 kPa. The saturation temperature (in °C) is______.(use linear interpolation if needed)

Question 3

Choose the correct statement about the effect of changing various operating conditions of a vapour compression refrigeration cycle:

Question 4

A vapour absorption refrigeration system works with generator, ambient and evaporator temperature as 360 k, 310 k and 260 k respectively. If the evaporator temperature falls to 240 k what should be the generator temperature in order to operate the system with same COP in Kelvin?

Question 5

Air at 20 °C dry bulb temperature and 40% relative humidity is heated up to 40 °C using heater, whose surface temperature is maintained uniformly at 45 °C. The bypass factor of the heater is

Question 6

The wet bulb depression is zero, when relative humidity is equal to

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ESE & GATE ME Thermodynamics

Jun 7ESE & GATE ME