Kerala PSC Previous Years Question Paper & Answer
Page:10
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.
Correct Answer: Option-C
Question74:-Psychrometry isthe science of measuring of ೧೫೧
‘AcTemperature
Bs Pressure
CeMoisture
D:-Heat
Correct Answer:- Option-C
Question75:-Lithium bromide in vapor absorption refrigeration system is used as
Ac Refrigerant
B:-Cooling substance
CeLubricant
D:-Absorbent
Correct Answer:- Option-D
Question76:-The vertical distance, the air moves after it leaves the outlet and reaches at the end of blow is called
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B:-Draft
8
D-Charge
Correct Answer:- Option-C
Question77:-A DC shunt motor has
‘AcConstant speed
B:Variable speed
C:Variable velocity
D:-Pulsating speed
Correct Answer:- Option-é
Question78:-The ratio of supplied air to the air leaving the room is known as
‘AcEntrainment ratio
B:-Discharge ratio
cSupply ratio
D:-Velocity ratio
Correct Answer:- Option-é
Question79:-Reciprocating refrigeration compressor uses following type of valve
AcRotary valve
B:-Ring plate valve
C=Poppet valve
D-Gate valve
Correct Answer:- Option ®
Question80:-Thermal insulator provide _path to heat.
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B:-Longer
مم
D-None of the above
Correct Answer:- Option ®
Question81:-A Baudelot evaporator is used to
കിട
B:-Produce icecream
Ce-Separate cream from milk
D-Produce ice cube
Correct Answer:- Option-C
Question82:-The most suitable refrigerant for commercial ice plant is