B:-120 to 180 PPM
(C-More than 180 PPM
0-60 to 120 PPM
Correct Answer: Option ®
Question42:-The difference between the cooling tower water inlet and outlet temperature is known as
‘Approach
B:-Blow down
മേട
1
டட ப
Question43:-Thermostatic expansion valves are generally set for a super heat of around
കടെ
B:-0 to 390
ടെ
5:16 6 86
Correct Answer: Option-C
Question44:-In which type of expansion valve has high efficiency 7
‘Capillary Tube
B:-Automatic expansion valve
C:Hand expansion valve
D:- Thermostatic expansion valve
Correct Answer:- Option-D
Question45:-The location of an expansion valve in a system is
‘AcBetween condenser and drier
B:-Between compressor and condenser
‏ممع سام هيع‎ evaporator and accumulator
D-Between liquid receiver and evaporator
Correct Answer:- Option-D
Question46:-The evaporator is also known as,
AcChilling coil
B:-Freezing coil
೦೦೦೦8೧೪ coil
०-५॥ of the above
Correct Answer:- Option-D
Question47:-The evaporator which is used in high capacity refrigeration systems is
கடம expansion evaporator
B:-Plate surface evaporator
Flooded evaporator
D-Bare tube evaporator
Correct Answer: Option-C
Question48::Which process is done first in split AC for shifting from one place to ancther ?
Ac Flushing
B:-Evacuation
C=Pump down
D:-Vacuumisation
Correct Answer: Option-C
Question49:-A compressor coupled to a motor externally is called
‘AcSealed compressor
B:-Semi sealed compressor

೦-೦೧೧ type compressor