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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Which type of electrode produces a short arc length?
(A) Heavy coated electrodes (B) Light-coated electrodes
(C) Medium coated electrodes (D) Super heavy coated electrodes
What is the conversion function of a rectifier?
(A) AC to AC (B) DCtoDC
(© ACtoDC (0) DCtoAc
Which is used for arc welding if there is no electric power supply?
(^) Rectifier set (B) Welding Transformer set
(C) Motor generator set (D) Engine generator set
Which type of arc produces a humming sound?
(ಹ) Long arc length (B) Short arc length
(C) Too short arc length (0) Too long arc length
The amount of time during which the transformer will be used for welding under normal
loading conditions is known as :
(A) Hold time (B) Operating time
(C) Weld time (D) Duty cycle
What is the purpose of fixing run-on, run-off plates in arc welding?
(A) Control are blow (B) Control porosity
(C) Control distortion (D) Control defects
What happens if the root gap is lesser than one-sixth of plate thickness?
(A) More chances of distortion
(B) More penetration will result
(C) Likely defects like blowhole, porosity
(D) Base metal not fused till the bottom of joint
What is the indication of the wrong polarity in DC welding?
(A) Electrode becomes red hot
(2) Electrode will freeze with the job
(C) Excess spatters and poor penetration
(0) It will produce the edge of plates melted off
9 111/2022
[P.T.0.]