The mass of water vapour present in __________ is called absolute humidity.
1 m3 of water
1 m3 of dry air
1 kg of wet air
1 kg of dry air
- The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.
- A refrigerant compressor is used to
- During humidification process, dry bulb temperature
- The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.
- A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking…
- Superheating in a refrigeration cycle
- One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of…
- The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature,…
- The dry bulb temperature lines, on the psychrometric chart are
- A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
- The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour…
- Rick up the incorrect statement
- In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s.…
- R-12 is generally preferred over R-22 in deep freezers since
- The evaporator changes the low pressure liquid refrigerant from the expansion valve into
- In a pressure enthalpy chart, the space to the left of the saturated liquid line represents
- During sensible cooling,
- During humidification process, __________ increases.
- The COP of a vapour compression plant in comparison to vapour absorption plant is
- In S.J. unit, one ton of refrigeration is equal to
- Reducing suction pressure in refrigeration cycle
- During dehumidification process, __________ remains constant.
- As relative humidity decreases, the dew point temperature will be ________ wet bulb temperature.
- Relative humidity is given by (where pv = Partial pressure of water vapour, pb = Barometric pressure,…
- A standard ice point temperature corresponds to the temperature of
- An infinite parallel planes with emissivities e₁ and e₂, the interchange factor for radiation…
- The higher temperature in vapour compression cycle occurs at
- The reciprocating refrigerant compressors are very suitable for
- In a saturated air-water vapour mixture, the
- The value of C.O.P in vapour compression cycle is usually