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.
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Which process increases the specific humidity of air at constant dry bulb temperature?
(^) Humidification of air (B) Dehumidification of air
(C) Sensible heating of air (D) Sensible cooling of air
Which instrument is used to measure the total pressure in an air duct?
(A) Anemometer ൯) Pitot tube manometer
(0) Hygrometer ൯) Velocimeter
The air which is filtered by electronic fitter, is passed from :
(^) Electrostatic field ൯) Electrodynamic field
(C) Electromagnetic field (1) Electromotive field
— is the preservation of food in sealed containers, usually after the application of
heat.
(^) Pasteurization (B) Dehydration
(C) Heat processing (D) Canning
سد type expansion valve is used in Railway air-conditioning system.
(A) Automatic (B) Thermostatic
(C) Low side float valve (D) Hand operated
What is the purpose of adding dye to the car AC system?
(A) Lubricate the engine (B) Shine the car
(C) Identify the gas leak (D) Adding performance
What is the reason for Ice accumulating in drain pan of walk-in cooler?
(A) Fan not running (B) Lack of refrigerant
(C) Plugged suction filter (D) Defective heater
Which method prevents the foul smell of drainage entering the AHU?
(^) U-trap ൯) Louvers
(C) Exhaust fan (D) Strainer
What is the other name of absolute filter?
(A) Fine filter (B) HEPA filter
(C) Bag filter (D) Course filter
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