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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How much gap is maintained between the grinding wheel and the work rest on a
pedestal grinder ?
A) 4to5mm B) 3to4mm
C) 2to3mm D) 1 to2mm
What is the angle of electrode while welding in vertical position ?
A) 60° to 70° B) 70° to 80°
C) 80° to 90° D) 90° to 100°
Which element is present in contact electrode in large proportion ?
A) Carbon B) Silicon C) Manganese D) Iron
What is the fusion zone ?
A) Fused depth B) Lack of fusion
C) Edge of the joint D) Surface of the joint
What is polarity ?
A
B
Circuit of current
Direction of current
9
)
)
) Open Circuit of current
D) Opposite Direction of current
Which type of arc produce humming sound ?
A) Long arc length B) Short arc length
C) Normal arc length D) Too long arc length
How do you name the depression formed at the end of the weld ?
A) Crack B) Crater
C) Pin hole D) Blow hole
What is the pre heating temperature of cast iron ?
A) 200 to 310°C B) 250 to 350°C
C) 300 to 350°C D) 350 to 450°C