‘A-Ammonia is absorbed in hydrogen
B:-Ammonia is absorbed in water
C-Ammonia evaporates in hydrogen
D-Hydrogen is absorbed in ammonia
Correct Answer:- Option-C
Question25:-One tonne of refrigeration is equal to
‘A210 Kymin
2:35 ۷
3.50
D-All the above
Correct Answer:- Option-D
Question26:-On psychrometric chart, dry bulb temperature lines are
‘Ac Horizontal
B:Vertical
c-Curved
പിഡി
Correct Answer:- Option ®
Question27:-The comfort conditions in air conditioning system are defined by
‏"22س‎ dry bulb temperature and 60% relative humility
B:-25°C dry bulb temperature and 100% relative humidity
C:-20°C dry bulb temperature and 75% relative humidity
25°C dry bulb temperature and 40% relative humility
Correct Answer:- Option-é
Question28:-Condensing temperature in a refrigerator is the temperature
‘A Of cooling medium
B:-Of freezing zone
Of evaporator
D-At which a refrigerant becomes liquid
Correct Answer:- Option-D
‘Question29:-The function of brine agitator in ice plant is to
‘Acincrease refrigeration effect
Bs-Increase COP
C-Obtain uniform temperature of brine
D-All of the above
Correct Answer:- Option-C
Question30:-A sling psychrometer is used to measure
‘AcNolume
B:-Humidity
C-Pressure
D:Velocity
Correct Answer:- Option ®
Question31:-A product of decomposition of oll resulting from impurities or moisture is
AcSludge
B:-Foam
7
D-None of these
Correct Answer:- Option-é
Question32:-Out of the following compressors which one has ೧೦ moving parts ?
‘Ac Reciprocating

B:Rotary