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 'AC Plant Operator' And exam conducted in the year 2023. And Question paper code was '148/2023/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.
D:-Centrifugal
Correct Answer:- Option-D
Question35:-The ratio of absolute discharge pressure to absolute suction pressure is
known as?
A:Volumetric efficiency
B:-Mechanical efficiency
C:-Compression ratio
D:-Efficiency ratio
Correct Answer:- Option-C
Question36:-Which valves are used to perform pump down operation in a domestic
air conditioning system?
A:-Check valves
B:-Service valves
C:-Solenoid valves
D:-Gate valves
Correct Answer:- Option-B
Question37:-The capacity of a condenser is expressed in
A:-kcal/kg
B:-kg/kcal
C:-kcal/kg°c
D:-kcal/hr
Correct Answer:- Option-D
Question38:-What is the reason for scale formation in shell and tube condenser?
A:-Fouling in the condenser
B:-Algae in the water
C:-Power failure
D:-Dissolved chemical and salts in the water
Correct Answer:- Option-D
Question39:-The type of heat removal takes place when changes the refrigerant
vapour to liquid in water cooled condenser?
A:-Latent heat of fusion
B:-Latent heat of vaporization
C:-Latent heat of condensation
D:-Sensible heat of fusion
Correct Answer:- Option-C
Question40:-The term indicates the difference in temperatures of inlet and outlet of
cooling tower water is known as