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Engineering Materials

Engineering Materials
Which is false statement about case hardening? Case hardening is done by

Electroplating
Nitriding
Cyaniding
Induction hardening

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Engineering Materials
Corrosion resistance of steel is increased by adding

Chromium and nickel
Tungsten and sulphur
Nickel and molybdenum
Aluminium and zinc

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Engineering Materials
1841 high speed steel contains

Vanadium 18%, chromium 1% and tungsten 4%
Vanadium 1%, chromium 4% and tungsten 18%
Vanadium 4%, chromium 18% and tungsten 1%
None of these

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Engineering Materials
Dislocations in materials refer to the following type of defect

Point defect
Line defect
Plane defect
Volumetric defect

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Engineering Materials
Depth of hardness of steel is increased by addition of

Nickel
Tungsten
Vanadium
Chromium

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Engineering Materials
The hardness of steel increases if it contains

Cementite
Martensite
Austenite
Pearlite

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MORE MCQ ON Engineering Materials

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