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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What is the melting point of tungsten ?
A) 3410°C B) 2000°C
C) 5404°C D) 1404°C
What is the bore diameter of ceramic nozzle to avoid porosity while doing TIG welding ?
A) small sized B) large sized
C) correct sized D) too small sized
What is the function of a little hydrogen added to argon for welding of stainless steel
in GTAW process ?
>
improves heat
ಥ್ರ
improves heat transfer
9
improves good welding
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)
)
)
) improves metal property
What is the defect caused by high current in TIG welding ?
A) crack B) porosity
C) undercut D) lack of penetration
Which gas is used as inert gas in GTAW for increased speed ?
A) oxygen B) helium
C) acetylene D) hydrogen
What is the reason for arc wanders while in AC TIG welding ?
A) improper tungsten size
B) improper shielding gas
C) improper cup size
D) touching tungsten to weld puddle
What is the name of the part of TIG torch for holding tungsten electrode ?
A) collet B) ceramic nozzle
C) adaptor D) electrode cap
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