Kerala PSC Previous Years Question Paper & Answer
Page:12
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'JUNIOR INSTRUCTOR TOOL & DIE MAKER INDUSTRIAL TRAINING English ' And exam conducted in the year 2019. And Question paper code was '051/2019'. 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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Nesting gauges are used whenever 3
(മ) Progressive tool is used (B) Compound tool is used
(~) Stock strip is fed into the tool (D) Unit stock is fed into the tool
While bending, the neutral plane lies approximately at a distance of
(ಹಿ) 03t to 0.5t from the inner surface
(B) 0.3t to 0.5t from the outer surface
(ಲ) 0.5t to 0.6t from the inner surface
(D) 0.4t from the outer surface
All bends are distorted like forming. This distortion is called
(മ) Elastic deformation (3) Plastic deformation
(C) Shearing (D) Planishing
If the blank diameter is ‘D’ and cup or shell diameter is ‘d’, then coefficient of drawing
K= ध
(ಹ) D-d © 2-2 © 6/2 (D) 2/4
The clearance between the walls of the drawing punch and the die should be
(A) Same as the thickness of the metal
(8 Less than the thickness of the metal
(ಲ) Greater than the thickness of the metal
(D) Double the thickness of the metal
A smaller bend radius results
(മ) No spring back (8) Heavier spring back
(C) Weaker spring back (D) No change in spring back
Why metal rupture or bottom break off in drawing ?
(മ) Blank holding pressure is too high
(8) Blank holding pressure is too weak
(C) Clearance is more
(D) Wrong blank dimension
051/2019 12 A
