Brass
Copper
Steel
Aluminium
B. Copper
Carnot cycle
Rankines cycle
Reversed Carnot cycle
None of the above
Suction of compressor
Delivery of compressor
High pressure side close to receiver
Low pressure side near receiver
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
Dry bulb temperature
Wet bulb temperature
Dew point temperature
Specific humidity
Kinetic theory of gases
Newton's law of gases
Dalton's law of partial pressures
Avogadro's hypothesis
Results in loss of heat due to poor heat transfer
Increases heat transfer rate
Is immaterial
Can be avoided by proper design
Freon-12
NH3
CO2
Freon-22
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
Same as
Lower than
Higher than
None of these
0.1 to 0.5 h.p. per ton of refrigeration
0.5 to 0.8 h.p. per ton of refrigeration
1 to 2 h.p. per ton of refrigeration
2 to 5 h.p. per ton of refrigeration
It permits higher speeds to be used
It permits complete evaporation in the evaporator
It results in high volumetric and mechanical efficiency
All of the above
Raise the pressure of the refrigerant
Raise the temperature of the refrigerant
Circulate the refrigerant through the refrigerating system
All of the above
Condensation of the refrigerant vapour
Evaporation of the refrigerant liquid
Compression of the refrigerant vapour
Metering of the refrigerant liquid
(td₂ - td₃)/(td₃ - td₁)
(td₃ - td₂)/(td₃ - td₁)
(td₃ - td₁)/(td₂ - td₃)
(td₃ - td₁)/(td₃ - td₂)
Same
Lower
Higher
None of these
Does not alter C.O.P.
Increases C.O.P.
Decreases C.O.P.
None of these
Reversed Carnot cycle
Reversed Otto cycle
Reversed Joule cycle
Reversed Rankine cycle
Domestic refrigerators
Commercial refrigerators
Air conditioning
Gas liquefaction
Higher in winter than in summer
Lower in winter than in summer
Same in winter and summer
Not dependent on season
Small displacements and low condensing pressures
Large displacements and high condensing pressures
Small displacements and high condensing pressures
Large displacements and low condensing pressures
Strong solution to weak solution
Weak solution to strong solution
Strong solution to ammonia vapour
Ammonia vapours to weak solution
Ericson
Stirling
Carnot
Bell Coleman
More
Less
Same
More for small capacity and less for high capacity
High pressure saturated liquid
Wet vapour
Very wet vapour
Dry vapour
Small
High
Equal
Anything
Remains constant
Increases
Decreases
None of these
B.P.F. - 1
1 - B. P.F.
1/ B.P.F.
1 + B.P.F.
Evaporator
Safety relief valve
Dehumidifier
Driers
Liquid pump
Generator
Absorber and generator
Absorber, generator and liquid pump
Wet bulb temperature
Dry bulb temperature
Dew point temperature
None of these