Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Refrigeration Mechanic UIP' And exam conducted in the year 2023. And Question paper code was '018/2023/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.
absolute pressure of a given mass of a perfect gas varies directly to its absolute
temperature ?
A:-Zeroth law
B:-Boyle's law
C:-Gay-lussac law
D:-Charle's law
Correct Answer:- Option-C
Question29:-Three TR is equivalent to __ of cooling effect.
A:-10.5 KW
B:-3.5 KJ/second
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D:-7.5 KW
Correct Answer:- Option-A
Question30:-Which refrigeration system called as expandable refrigerant
refrigeration system ?
A:-Water vapour system
B:-Liquid gas refrigeration system
C:-Dry ice refrigeration system
D:-Steam jet refrigeration system
Correct Answer:- Option-B
Question31:-What is the name of the process in which dry ice is converted into
vapour state ?
A:-Sub cooling
B:-Super heating
C:-Sublimation
D:-Quick freezing
Correct Answer:- Option-C
Question32:-Which compressor dome handles high pressure and high temperature
vapour ?
A:-Hermetic rotary compressor
B:-Semi hermetic reciprocating compressor
C:-Open type reciprocating compressor
D:-Hermetic reciprocating compressor
Correct Answer:- Option-A
Question33:-The volumetric efficiency of the compressor is defined as the ratio of
A:-Absolute discharge pressure to the absolute suction pressure
B:-Clearance volume to the piston displacement volume