Vapour compression cycle
Vapour absorption cycle
Air refrigeration cycle
None of these
B. Vapour absorption cycle
Saturated liquid
Wet vapour
Dry saturated vapour
Superheated vapour
High risibility with oil
Low boiling point
Good electrical conductor
Large latent heat
210 kJ/ min
21 kJ/ min
420 kJ/ min
840 kJ/ min
Remains constant
Increases
Decreases
None of these
Condensation of the refrigerant vapour
Evaporation of the refrigerant liquid
Compression of the refrigerant vapour
Metering of the refrigerant liquid
Low weight per tonne of refrigeration
High heat transfer rate
Low temperature at high altitudes
Higher coefficient of performance
Heat supplied by the gas burner to the heat absorbed by the evaporator
Heat absorbed by the evaporator to the heat supplied by the gas burner
Heat supplied by the gas burner minus the heat absorbed by the evaporator to the heat supplied by the gas burner
Heat absorbed by the evaporator minus the heat supplied by the gas burner to the heat absorbed by the evaporator
Vertical and uniformly spaced
Horizontal and uniformly spaced
Horizontal and non-uniformly spaced
Curved lines
(C.O.P.)P = (C.O.P.)R + 2
(C.O.P.)P = (C.O.P.)R + 1
(C.O.P)P = (C.O.P)R - 1
(C.O.P)P = (C.O.P)R
The mass of water vapour present in 1 m3 of dry air
The mass of water vapour present in 1 kg of dry air
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure.
The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure
Wet vapour region
Superheated vapour region
Sub-cooled liquid region
None of these
Halide torch
Sulphur sticks
Soap and water
All of these
To the left of saturated liquid line
To the right of saturated liquid line
Between the saturated liquid line and saturated vapour line
None of the above
One heat exchanger
Two heat exchangers
Three heat exchangers
Four heat exchangers
Isentropic compression process
Constant pressure cooling process
Isentropic expansion process
Constant pressure expansion process
(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
Pressure lines
Temperature lines
Total heat lines
Entropy lines
Water at 0°C
Ice at 4°C
Solid and dry ice
Mixture of ice and water under equilibrium conditions
More
Less
Equally
Unpredictable
High sensible heat
High total heat
High latent heat
Low latent heat
Carnot cycle
Rankines cycle
Reversed Carnot cycle
None of the above
Compression
Expansion
Condensation
Evaporation
Increased to a value above its critical temperature
Reduced to a value below its critical temperature
Equal to critical temperature
None of the above
Freon-11
Freon-22
CO2
Ammonia
Mean radiant temperature
Effective temperature
Dew point temperature
None of these
Dry bulb depression
Wet bulb depression
Dew point depression
Degree of saturation
Dry air
Moist air
Saturated air
Specific humidity
It is not affected by the moisture present in the air
Its bulb is surrounded by a wet cloth exposed to the air
The moisture present in it begins to condense
None of the above
Ammonia vapour goes into solution
Ammonia vapour is driven out of solution
Lithium bromide mixes with ammonia
Weak solution mixes with strong solution
Dehumidification
Cooling and humidification
Cooling and dehumidification
Dehumidification and pure sensible cooling