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 'TRAINING INSTRUCTOR (WELDER)' And exam conducted in the year 2023. And Question paper code was '136/2023'. 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 filler rod to be used for gas welding aluminium ?
A) Silicon-brass
B) Silicon-manganese
C) Copper-Silver alloy
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D) Pure aluminium, 5% silicon aluminium alloy
Which material is used in manufacture gas cylinder ?
A) Forged steel B) Nickel steel
C) Stainless steel D) Solid Drawn steel
What is the purpose of cleaning of sheets before doing gas welding ?
A) To avoid overlap B) To avoid porosity
C) To avoid undercut D) To control distortion
Which type welding uses a non-ferrous filler with melting point above 450°, than
base metal ?
A) Brazing B) Soldering C) Arc welding D) Gas welding
Which metal can be cut by oxy-acetylene gas cutting process ?
A) Aluminium B) Cast iron C) Mild steel D) Stainless steel
Which is the hottest point in a oxy-acetylene flame ?
^) 2000 - 2200 © 8) 2500 - 27000 ©) 2700 - 3000 © ൧) 3000 - 32000
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hat is the use of oxidising flame ?
A
B
0
D
Suitable for cast iron welding
Suitable for brass welding
Suitable for mild steel welding
Suitable for stellite, pipe welding
What are the defects in generated acetylene gas ?
A) Oxygen, hydrogen and carbon
B)
C) Hydrogen, dust particles, ash
D) Hydrogen, lime dust, ammonia and water vapour
Carbon monoxide unburnt ash
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