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 - Apex Societies of Co-operative Sector in Kerala/ MATSYAFED ' And exam conducted in the year 2022. And Question paper code was '039/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. 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.
94. The axial flow fans are particularly suitable for handling :
(A) small volumes of air at relatively low pressures
(B) small volumes of air at relatively high pressures
(C) large volumes of air at relatively low pressures
(0) large volumes of air at relatively high pressures
95. Which control terminals are shorted before pump down operation in split package AC?
(^) Selector switch (B) Low pressure switch
(C) Dual pressure switch (D) High pressure switch
96. Which is scheduled for yearly maintenance in package AC?
(ಹ) Clean the cooling tower (8) ‘ighten the pump gland nut
(C) Tighten the blower belt (D) Wash the air filter
97. Which device is used to measure the density of brine solution?
(A) Thermometer (B) Hydrometer
(0) Lactometer (D) Hygrometer
98. What is the function of magnetic clutch in an automobile air conditioner?
(A) Start and stop the compressor electro magnetically
(B) Start and stop the evaporator blower
(C) Check Rpm of engine shaft
(D) Check Rpm of compressor shaft
99. Which process decreases the dry bulb temperature of air at constant specific humidity?
(^) Sensible heating of air (B) Humidification of air
(0) Dehumidification of air (D) Sensible cooling of air
100. What is the reason for short cycling of LP control switch in AC plant?
(^) Excess of refrigerant (B) Excess of water flow
(C) Shortage of refrigerant (D) Shortage of water flow
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