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Engineering Materials

Engineering Materials
Which of the following alloys does not have copper as one of the constituents?

Monel metal
Constantan
Delta metal
Nichrome

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Engineering Materials
The tensile strength of wrought iron is maximum

Uniform in all directions
Perpendicular to lines of slag distribution
None of these
Along the lines of slag distribution

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Hot tempering
Creep
Fatigue
Hot hardness

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

Line defect
Point defect
Volumetric defect
Plane defect

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Engineering Materials
The percentage of carbon in grey iron castings usually varies between

0.5 to 1%
5 to 7%
0.012
2.5 to 4.5%

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

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

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