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Engineering Materials

Engineering Materials
The hardness of steel increases if it contains

Martensite
Pearlite
Austenite
Cementite

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

Line defect
Point defect
Plane defect
Volumetric defect

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Engineering Materials
Corundum contains more than 95%

SiO2
Steel
Al2O3
MgO

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Engineering Materials
Eutectoid reaction occurs at

600°C
723°C
1493°C
1147°C

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Engineering Materials
Steel containing ferrite and pearlite is

Soft
Hard
Hard and tough
Tough

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Engineering Materials
The heat treatment process used for softening hardened steel is

Carburising
Normalizing
Tempering
Annealing

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MORE MCQ ON Engineering Materials

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