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
C. Dry bulb, wet bulb and dew point temperature are same
Compression
Expansion
Condensation
Evaporation
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
0.622 Pv/ (Pb - Pv)
μ/[1 - (1 - μ) (Ps/Pb)]
[Pv (Pb - Pd)]/ [Pd (Pb - Pv)]
None of these
Equal to
Less than
Greater than
None of these
Heat dissipated to the surroundings
Heat stored in the human body
Sum of (A) and (B)
Difference of (A) and (B)
Centrifugal
Axial
Miniature sealed unit
Piston type reciprocating
The constant enthalpy lines are also constant wet bulb temperature lines.
The wet bulb and dry bulb temperature are equal at saturation condition.
The wet bulb temperature is a measure of enthalpy of moist air.
All of the above
Temperature, pressure and enthalpy
Specific volume and enthalpy
Temperature and enthalpy
Temperature, pressure, specific volume and enthalpy
Humidification
Dehumidification
Heating and humidification
Cooling and dehumidification
Same
Low
Very low
High
Wet bulb temperature
Relative humidity
Dry bulb temperature
Specific humidity
Ammonia
R-12
Sulphur dioxide
Carbon dioxide
One heat exchanger
Two heat exchangers
Three heat exchangers
Four heat exchangers
Simple air cooling system
Simple evaporative air cooling system
Bootstrap air cooling system
All of these
B.P.F. - 1
1 - B.P.F.
1/ B.P.F.
1 + B.P.F.
More
Less
Same
More/less depending on size of plant
0.1 ton
5 tons
10 tons
40 tons
Inflammable
Toxic
Non-inflammable and toxic
Nontoxic and non-inflammable
Temperature of medium being cooled must be below that of the evaporator
Refrigerant leaves the condenser as liquid
All solar thermally operated absorption systems are capable only of intermittent operation
Frost on evaporator reduces heat transfer
(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
Reversed Carnot cycle
Reversed Otto cycle
Reversed Joule cycle
Reversed Rankine cycle
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
Lack of cooling water
Water temperature being high
Dirty condenser surface
All of these
Reciprocating
Rotating
Centrifugal
Screw
Commercial refrigerators
Domestic refrigerators
Air-conditioning
Gas liquefaction
Ammonia is absorbed in hydrogen
Ammonia is absorbed in water
Ammonia evaporates in hydrogen
Hydrogen evaporates in ammonia
Same
Lower
Higher
None of these
NN = hl/k
NN = μ cp/k
NN = ρ V l /μ
NN = V²/t.cp
(e₁ + e₂)/ e₁ + e₂ - e₁e₂
1/e₁ + 1/e₂
e₁ + e₂
e₁e₂
Condenser
Evaporator
Compressor
Expansion valve