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Engineering Materials

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

Silver metal
Duralumin
Invar
Hastelloy

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Engineering Materials
Chromium when added to steel _________ the tensile strength.

Increases
Does not effect
Decreases
None of these

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Engineering Materials
When the steel is normalized, its

All of these
Ultimate tensile strength increases
Yield point increases
Ductility decreases

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Engineering Materials
A material is known as allotropic or polymorphic if it

Has its atoms distributed in a random pattern
Has a fixed structure under all conditions
Exists in several crystal forms at different temperatures
Responds to heat treatment

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Engineering Materials
Malleability of a material can be defined as

Ability to undergo large permanent deformations in tension
Ability to recover its original form
All of these
Ability to undergo large permanent deformations in compression

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Engineering Materials
Age-hardening is related with

Duralumin
Gun metal
Stainless steel
German silver

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MORE MCQ ON Engineering Materials

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