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 'Tradesman (Fitting)' And exam conducted in the year 2022. And Question paper code was '112/2022'. 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 ore is used to extract zinc?
(^) Bauxite ൯) Calamine
(C) Galena (1) Cassiterite
Which method of surface hardening is done in a heated salt bath?
(4) Flame hardening (B) Gas carburizing
(C) Pack Carburizing (D) Liquid Carburizing
An operation of solid state welding process which is used to join two metal pieces by heating
them toa temperature and hammered together to join them?
(^) Arc welding (B) Forge welding
(C) Gas welding (D) Upsetting
What is the uses of fullers?
(4) For necking and grooving
(B)_ For hollowing
(0) For drying down
(D) For forming the head of rivets and bolts
Why lime stone serves as flux added to the ore in the blast furnace?
(4) To form molten slag (B) To supply the oxygen
(C) To burn the carbon in coke (D) To increase the melting point of ore
Which method of heat treatment is used to improve machinability and ductility in the job?
(A) Tempering (B) Hardening
(C) Annealing (D) Normalizing
What is the OCV for welding in step-down transformer which reduces the main supply
voltage (220 or 440 volts)?
(A) 40 and 100 volt (B) 50 and 100 volt
(೮) 30and 20 volt (D) 20 and 25 volt
When bottom swage and top fuller are used together then which of the following operation is
done?
(A) Drawing out ®) Hollowing
(C) Jumping (D) Bending
112/2022 10 A