14) One ton of refrigeration is equal to the refrigeration effect corresponding to melting of one ton of ice

in 12 hours

in 1 hour

in 24 hours

in 1 minutes

Answer is:

in 24 hours

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.

Self-actuated expansion valve

Capillary tube

Thermostatic device

Float valve

Answer is:

Float valve

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

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

For more MCQ's Click Here

14) One ton of refrigeration is equal to the refrigeration effect corresponding to melting of one ton of ice

in 24 hours

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

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

Float valve

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

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