15) In a flooded evaporator _____ type of expansion device is employed.

Self-actuated expansion valve

Capillary tube

Thermostatic device

Float valve

Answer is:

Float valve

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

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16) The higher temperature in vapour compression cycle occurs at

expansion valve

compressor discharge

condenser discharge

receiver

Answer is:

compressor discharge

17) If T1 and T2 be the highest and lowest absolute temperatures encountered in a heat pump operating on a reversed Carnot cycle, then its COP is equal to

(T1-T2)/T1

(T1-T2)/T2

T2/(T1-T2)

T1/(T1-T2)

Answer is:

T1/(T1-T2)

18) The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

compression of the refrigerant vapour

condensation of the refrigerant vapour

evaporation of the refrigerant liquid

metering of the refrigerant liquid

Answer is:

evaporation of the refrigerant liquid

19) In a vapour absorption system using ammonia, water is required for

Condenser only

Separator only

Absorber, separator and condenser

Absorber only

Answer is:

Absorber, separator and condenser

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

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15) In a flooded evaporator _____ type of expansion device is employed.

Float valve

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

Related ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

16) The higher temperature in vapour compression cycle occurs at

compressor discharge

17) If T1 and T2 be the highest and lowest absolute temperatures encountered in a heat pump operating on a reversed Carnot cycle, then its COP is equal to

T1/(T1-T2)

18) The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

evaporation of the refrigerant liquid

19) In a vapour absorption system using ammonia, water is required for

Absorber, separator and condenser

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key