Kerala PSC Previous Years Question Paper & Answer

Title : Tradesman (Welding)
Question Code : A

Page:12


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.

page: 12 out of 14
Excerpt of Question Code: 111/2022



93. Which welding machine is to be used for welding aluminium by the TIG welding process?
(A) AC welding machine (B) DC welding machine
(C) AC DC transformer (D) DC transformer
94. Name the device which allows the welder to use a longer electrode extension than with a
standard nozzle in TIG welding :
(^) Electrode cap (B) Ceramic nozzle
(C) Collet (D) Gas lens
95. Which gas is used as an inert gas in GTAW for increased speed?
(A) Oxygen (B) Helium
(C) Acetylene (D) Argon
96. What is the name of the part of the TIG torch for holding the tungsten electrode?
(^) Collet (B) Adaptor
(C) Ceramic nozzle (D) Electrode cap
97. Which type of cooling system is used in heavy-duty welding operations?
(A) Air cooled (B) Oil cooled
(C) Gas cooled (D) Water cooled
98. Which type of tungsten electrode is suitable for welding SS by TIG process with DC?
(A) Pure tungsten electrode (B) Cerium tungsten electrode
(0) Thoriated tungsten electrode (D) Zirconium tungsten electrode
99. What is the defect while TIG welding if the current is too low?
(^) Crack ൯) Porosity
(6 Undercut ൯) 1,௨௦0 of fusion
100. What is the cause for poor weld bead color in TIG welding process?
(ಹ) Too much arc length
(B) Excessive heating in torch
(C) Tungsten melting into the weld puddle
(D) Contaminated or improper filler metal
111/2022 14 A

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