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 'Junior Instructor (Welder) - Industrial Training ' And exam conducted in the year 2021. And Question paper code was '070/2021'. 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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070/21
In GTAW process, aluminium is welded by
A) Rectifier set B) AC power source
C) DC power source D) Engine driven set
Nickel and titanium is only welded for
A) GTAW B) FCAW
0) GMAW D) MMAW
What is the use of backing strips and backing bars while welding the product ?
A) To support the job
B) To strengthen the job
C) To minimize the defects
D) To minimize the distortion and contraction
What is the thermit reaction time ?
A) 4 - 6 seconds 8) 7- 10 seconds
©) 14 - 20 seconds 0) 25 - 30 seconds
Thermit for welding electric connections consist of
A) Nitrogen and Steel
B) Helium and Copper
C) Hydrogen and Tungsten
D) Copper oxide and Aluminium
In which part of the electro slag, unit is used to deliver the electrode wire through the
guide tube to the molten flux ?
A) Wire feeder B) Control panel
C) Electrode guide tube D) Water cooled copper shoes
The temperature of molten slag pool in electro slag welding is
A) 1400°C B) 1650°C
C) 1800°C D) 2100°C
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