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 'Lecturer in Tool and Die Engineering (Polytechnic Colleges) - Technical Education ' And exam conducted in the year 2021. And Question paper code was '005/2021'. 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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Addition of magnesium to cast iron increases its
(A) Ductility and strength (B)
(C) Creep strength (D)
Chills are used in moulds to
(A) Achieve directional solidification (8)
(6) reducing freezing time (D)
Hot chamber process is suitable to cast
(A) Iron (8)
(C) Plastic (60)
The process used to reduce hardness of steel is
(A) Baking (B)
(C) Tempering (D)
In MS the percentage of carbon is ranging from
(A) 0.05-0.30 (B)
(C) 0.35 - 0.50 (D)
The 18 : 4: 1 tool steel is
(^) Martensite (8)
(0) Austenite (D)
Deoxidising agent for steel is
(A) Chromium (B)
(C) Manganese (D)
Copper is added in steel for improving
(A) _ hardness (B)
(0) 101 hardness (D)
Toughness of a material is measured by means of
Hardness
Fatigue strength
reduce blow holes
smooth metal flow
Nickel
Tin
Annealing
Quenching
0.20 - 0.35
0.45 - 0.60
HSS
Bainite
Nickel
Tungsten
atmospheric corrosion
ductility
Rock well test
Vickers test
Pearlitic
Austenitic
Stephen
Johsons
that of oxidising flame
higher
(A) Joniney quench test (B)
(C) Impact testing (D)
From the following identify the extreme hardened steel.
(൧) Martensitic (8)
(0) Ladeburitic (D)
VT"=Cis tool life equation
(^) Taylor (B)
(C) Chapman (D)
The temperature of carburising flame in gas welding is
(^) lower (B)
(C) equal (D)
005/2021 091111
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