Kerala PSC Previous Years Question Paper & Answer
Page:9
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Refrigeration Mechanic (HER)' And exam conducted in the year 2020. And Question paper code was '014/2020/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
De-Lead
Correct Answer:- Option-C
Question66:-The unit of thermal diffusivity is
۴ھ
जाती
பொய்ச்
Demi
Correct Answer:- Option-C
‘Question67:-Dust and other impurities in air are removed by
Achir washer
B:-Centrifugal device
CeAdhesive impregnated filter
D-Any of the above
Correct Answer:- Option-D
Question68:-The ್ಪ್ evaporator compared to flooded evaporator ina similar plant
Acts same
8:15 more
Cols less
وليه Unpredictable
Correct Answer:- Option-C
Question69:-An air washer is used in a refrigeration system for
‘AcCleaning
B:-Cooling
C:Humidification
D-All of the above
Correct Answer:- Option-D
Question70:-f suction pressure decrease, then COP
‘Ac Decreases
Bs-Increases
೦೫85 no change
D:-First increases and then decreases
Correct Answer:- Option-é
Question71:-Cooling towers are installed in places where
‘AcWater is available in plenty
B:-Water is scarce
C=For big plants
D:-For small plants
Correct Answer:- Option ®
Question72::When two refrigerants are mixed in the proper proportions, the mixture forms a third refrigerant called
‘Ac Synthetic refrigerant
B:-Low pressure refrigerant
C:Azeotropic refrigerant
D:-Auxiliary refrigerant
Correct Answer:- Option-C
Question73:-Air refrigerators works on
AcCarnot cycle
B:-Strling cycle
CeReversed Joule cycle
D:-Atkinson cycle