Question58:-Temperature control device used in Air Conditioner is known as
A:-Thermostatic Expansion Valve
B:-Thermostatic switch
C:-AEV.
D:-H.P.C.
Correct Answer:- Option-B
Question59:-Volumetric efficiency of a compressor is expressed in
A:-Percentage
B:-Calorie/Hr.
C:-BTU/Hr.
D:-Psig
Correct Answer:- Option-A
Question60:-Inverter Refrigerator is working under the principle of
A:-Frequency modulating
B:-Voltage modulating
C:-Current modulating
D:-None of these
Correct Answer:- Option-A
Question61:-Inverter Air Conditioner consumes வாட
A:-More
B:-Less
C:-Very high
D:-None of these
Correct Answer:- Option-B
Question62:-The term called triple point is
A:-The temperature condition of a substance at solid state
B:-The pressure condition of a substance at liquid state
C:-The pressure/temperature condition is in balance at vapour state
D:-The Pressure/Temperature condition in which a substance is ॥ balance in solid, liquid and vapour state
Correct Answer:- Option-D
Question63:-Bi-metal thermostatis a device used in
A:-Pressure circuit
B:-TEV circuit
C:-Defrosting circuit
D:-Compressor circuit
Correct Answer:- Option-C
Question64:-Many bubbles in the liquid line sight glass are a sign that the system is
A:-Properly charged
B:-Contaminated with air
C:-Under charged
D:-Over charged
Correct Answer:- Option-C
Question65:-The main parts of a Rotary Compressor are
A:-Cylinder and piston
B:-Rotor and crank shaft
C:-Roller and cylinder
D:-All of the above
Correct Answer:- Option-C
Question66:-High side float valve is used in
A:-Dry type evaporator
B:-Non-frosting evaporator
C:-Flooded type evaporator
D:-All of the above
Correct Answer:- Option-C
Question67:-Modification of R-12 to R-134a refrigerant in a refrigeration system is called
A:-Recovery
B:-Retrofit
C:-Refilling
D:-Pump down