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Engineering Materials

Engineering Materials
Crystal structure of a material is, generally, examined by

Optical microscope
Naked eye
Metallurgical microscope
X-ray techniques

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Engineering Materials
In compression, a prism of brittle material will break

By forming a bulge
By shearing along oblique plane
In direction perpendicular to application of load
By crushing into thousands of pieces

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Engineering Materials
Hematite iron ore contains iron about

0.3
0.7
0.55
0.45

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Engineering Materials
Which of the following steel making process is being adopted at Rourkela (in India) Steel Plant?

Electric process
Open hearth process
LD process
Bessemer process

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Engineering Materials
Permalloy is a

Polymer
Kind of stainless steel
Nickel and iron alloy having high permeability
None ferrous alloy

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

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

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