After passing through the condenser
Before passing through the condenser
After passing through the expansion or throttle valve
Before entering the compressor
D. Before entering the compressor
High, of the order of 25°
As low as possible (3 to 11°C)
Zero
Any value
Kinetic theory of gases
Newton's law of gases
Dalton's law of partial pressures
Avogadro's hypothesis
Same
More
Less
More or less depending on ambient conditions
More
Less
Equally
Unpredictable
Compression
Direct
Indirect
Absorption
20°C DBT and 50% RH
26°C DBT and 50% RH
20°C DBT and 60% RH
26°C DBT and 60% RH
T₁ / (T₂ - T₁)
(T₂ - T₁)/T₁
(T₁ - T₂)/T₁
T₂/ (T₂ - T₁)
Same as
Lower than
Higher than
None of these
Humidity ratio
Relative humidity
Absolute humidity
Degree of saturation
Of cooling medium
Of freezing zone
Of evaporator
At which refrigerant gas becomes liquid
Which lies between the dry bulb and wet bulb temperatures of the incoming stream
Which lies between the wet bulb and dew point temperatures of the incoming stream
Which is lower than the dew point temperature of the incoming stream
Of adiabatic saturation of incoming stream
Vapour compression cycle
Vapour absorption cycle
Air refrigeration cycle
None of these
Relative humidity remains constant
Wet bulb temperature increases
Specific humidity increases
Partial pressure of vapour remains constant
Water
Ammonia
Freon
Aqua-ammonia
Pressure lines
Temperature lines
Total heat lines
Entropy lines
A gas will never liquefy
A gas will immediately liquefy
Water will evaporate
Water will never evaporate
Wet bulb temperature
Relative humidity
Dry bulb temperature
Specific humidity
Results in loss of heat due to poor heat transfer
Increases heat transfer rate
Is immaterial
Can be avoided by proper design
Compressor
Condenser
Expansion valve
Evaporator
Same as
Lower than
Higher than
None of these
Decreases
Increases
Remain same
Depends on other factors
Vertical and uniformly spaced
Horizontal and uniformly spaced
Horizontal and non-uniformly spaced
Curved lines
Expansion valve to the evaporator
Evaporator to the thermostat
Condenser to the expansion valve
Condenser to the evaporator
Sub-cooling or under-cooling
Super-cooling
Normal cooling
None of these
Water and hydrogen
Ammonia and hydrogen
Ammonia, water and hydrogen
None of these
Rankine
Carnot
Reversed Rankine
Reversed Carnot
Vapour compression
Vapour absorption
Carnot cycle
Electrolux refrigerator
Humidification
Dehumidification
Heating and humidification
Cooling and dehumidification
Automatic expansion valve
High side float valve
Thermostatic expansion valve
Low side float valve
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