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 (Welding)' And exam conducted in the year 2022. And Question paper code was '111/2022'. 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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Why an oxidizing flame is most suitable to weld brass and bronze?
(4) Brass and bronze are having higher melting points
(2) To retain the colour of brass and bronze
(0) It avoids evaporation of zinc
(D) To speed up the welding
What is the preheating temperature of cast iron welding?
(A) 150°C to 300°C
(C) 300°C to 350°C
1 kg of calcium carbide generate
(^) 157 liter
(C) 375 liter
(B) 170°C to 310°C
(D) 200°C to 310°C
liter of acetylene gas :
(B) 247 liter
(D) 447 liter
What is the storage medium used to store acetylene gas in the cylinder at high pressure?
(A) Water
(C) Kerosene
(B) Acetone
(D) Petroleum
Which one of the following gases is supporter of combustion?
(A) Oxygen
(C) Nitrogen
(B) Acetylene
(0) 0೦%
Which stage of regulator is needed for frequent torch adjustment?
(^) Single stage
(C) COs: gas regulator
(B) Double stage
(D) Hydrogen gas regulator
Which type of blow pipe can be used in both low pressure and high pressure?
(^) High pressure blow pipe
(2) Low pressure blow pipe
(C) Non injector blow pipe
(D) Equal pressure of blow pipe
In gas welding the angle of torch to the work in rightward welding technique is :
(A) 30° — 40°
(0 507-607
111/2022
(B) 40-50
(D) 60-70