Ericson
Stirling
Carnot
Bell Coleman
D. Bell Coleman
Heat of compression
Work done by compressor
Enthalpy increase in compressor
All of the above
Dry bulb temperature is higher than wet bulb temperature
Dew point temperature is lower than wet bulb temperature
Dry bulb, wet bulb and dew point temperature are same
Dry bulb temperature is higher than dew point temperature
-86.6°C
-95.2°C
-107.7°C
-135.8°C
Temperature, pressure and enthalpy
Specific volume and enthalpy
Temperature and enthalpy
Temperature, pressure, specific volume and enthalpy
Ammonia
Carbon dioxide
Sulphur dioxide
R-12
Domestic refrigerators
Commercial refrigerators
Air conditioning
Gas liquefaction
25 kJ/kg
50 kJ/kg
100 kJ/kg
125 kJ/kg
Bigger
Smaller
Equal
Smaller/bigger depending on capacity
Cooled and humidified
Cooled and dehumidified
Heated and humidified
Heated and dehumidified
Absolute
Relative
Specific
None of these
A refrigerant should have low latent heat
If operating temperature of system is low, then refrigerant with low boiling point should be used
Pre-cooling and sub-cooling bf refrigerant are same
Superheat and sensible heat of a refrigerant are same
Lithium bromide used in vapour absorption cycle is non volatile
Lithium bromide plant can't operate below 0°C
A separator is used in lithium bromide plant to remove the unwanted water vapour by condensing
Concentration of solution coming out of lithium bromide generator is more in comparison to that entering the generator
Saturated liquid
Wet vapour
Dry saturated vapour
Superheated vapour
Rankine
Carnot
Reversed Rankine
Reversed Carnot
Dehumidification
Cooling and humidification
Cooling and dehumidification
Dehumidification and pure sensible cooling
0.622 Pv/ (Pb - Pv)
μ/[1 - (1 - μ) (Ps/Pb)]
[Pv (Pb - Pd)]/ [Pd (Pb - Pv)]
None of these
Humidity ratio
Relative humidity
Absolute humidity
Degree of saturation
(Theoretical C.O.P.)/ (Actual C.O.P.)
(Actual C.O.P.) /(Theoretical C.O.P.)
(Actual C.O.P.) × (Theoretical C.O.P.)
None of these
Compressor
Condenser
Evaporator
Expansion valve
Cooling
Heating
Dehumidifying
All of these
-20.5°C
-50°C
-63.3°C
-78.3°C
Same as
Lower than
Higher than
None of these
Heated and dehumidified
Heated and humidified
Cooled and humidified
Cooled and dehumidified
Equal to
Less than
Greater than
None of these
Remains constant
Increases
Decreases
None of these
Bigger cabinet should be used
Smaller cabinet should be used
Perfectly tight vapour seal should be used
Refrigerant with lower evaporation temperature should be used
In evaporator
Before expansion valve
Between compressor and condenser
Between condenser and evaporator
Decrease in fin spacing and increase in number of rows
Increase in fin spacing and increase in number of rows
Increase in fin spacing and decrease in number of rows
Decrease in fin spacing and decrease in number of rows
Same as
Lower than
Higher than
None of these
Removes heat from a low temperature body and delivers it to a high temperature body
Removes heat from a high temperature body and delivers it to a low temperature body
Rejects energy to a low temperature body
None of the above