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Engineering Materials

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

Induction hardening
Nitriding
Electroplating
Cyaniding

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Engineering Materials
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

Heat treatment
Recrystallization
Allotropic change
Precipitation

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Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Hastelloy
Duralumin
Invar
Silver metal

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Engineering Materials
Tungsten in high speed steel provides

Wear resistance
Sharp cutting edge
Toughness
Hot hardness

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Engineering Materials
Constantan an alloy used in thermocouples is an alloy of

Copper and zinc
Copper and iron
Copper and nickel
Copper and tin

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Engineering Materials
Connecting rod is, usually, made from

Low carbon steel
High speed steel
High carbon steel
Medium carbon steel

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