## Kerala PSC Previous Years Question Paper & Answer

Title : Mechanic
Question Code :

Page:10

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Mechanic' And exam conducted in the year 2023. And Question paper code was '003/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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: 10 out of 11
Excerpt of Question Code: 003/2023/OL

C:-Punching
D:-Drifting
Question86:-What is the purpose of groover in sheetmetal?
A:-Releasing of seam
B:-Compress the seam
C:-Closing and locking the seam
D:-Stress relieving during seaming
Question87:-What is the maximum cutting capacity of straight snips?
A:-20 SWG
B:-19 SWG
C:-18 SWG
D:-16 SWG

Question88:-Which rivet is most suitable for riveting soft materials like leather,
plastics etc?

C:-Counter sunk rivet
D:-Bifurcated rivet
Question89:-Caulking is an operation of
A:-pressing the whole surface of the edge of the plate
B:-closing down the edges of the plates and heads of the rivet
C:-closing down the center surface of the plate
D:-pressing the plates
Question90:-The formula generally used in the shop floor, length of snap head rivet
15
A:-L=T +d (1.3 - 1.6)

B-L=T+15D
C-L=T+d
D-L=TxD

Question91:-Electrode size refers
A:-diameter of its core wire
B:-diameter of electrode
C:-length of the electrode
D:-thickness of flux coating
Question92:-Arc blow is caused by
A-electronic disturbance
B:-magnetic disturbance
C:-electric disturbance

Question93:-The welding machine which is used to convert AC Welding Supply to
DC Welding Supply

A:-engine generator set
B:-motor generator set
C:-transformer set
D:-rectifier set