B:-Vertical
C:-Straight inclined sloping downward to the right
D:-Curved
Correct Answer:- Option-C
Question39:-Tachometer is used to measure
A:-Humidity in air
B:-Velocity of air
C:-Density of air
D:-Speed of compressor
Correct Answer:- Option-D
Question40:-—252°F is equal to degree celsius.

Correct Answer:- Option-D
Question41:-An air conditioner consumes 5 Amps from 240 Volts and the PF is 0.8 its power is
A:-690 Watts
-985 Watts
C:-950 Watts
D:-960 Watts
Correct Answer:- Option-D
Question42:- Compressor has less EER.
A:-Reciprocating Compressor
-Rotary Compressor
C:-Centrifugal Compressor
D:-Screw Compressor
Correct Answer:- Option-A
Question43:-An oil separator is installed in-between
A:-Receiver and Expansion Valve
B:-Compressor and Condenser
C:-Condenser and Receiver
D:-Evaporator and Compressor
Correct Answer:- Option-B
Question44:-Piercing valve is used to
-Recover the gas
:-Pinch the charging line
C:-Release the gas out
D:-Recover the oil
Correct Answer:- Option-A
Question45:-Diameter of Capillary tube used in Refrigerator is
A:-0.055 inch
B:-0.0361 inch
C:-0.065 inch
D:-0.0255 inch
Correct Answer:- Option-B
Question46:-Automatic expansion valve controls the flow of Refrigerant to evaporator according to
A:-Pressure
B:-Temperature
C:-Pressure and Temperature
D:-None of these
Correct Answer:- Option-A
Question47:-Dry ice is used for
A:-Cooling water
B:-Cooling milk
C:-Preserving food stuffs
D:-None of these
Correct Answer:- Option-C
Question48:-Substitute of Freon-12 refrigerant is