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Engineering Materials

Engineering Materials
Steel with __________ carbon is known as hypo-eutectoid steel.

0.008
None of these
Above 0.8%
Below 0.8%

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

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

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Engineering Materials
A material is said to be allotropic, if it has

Fixed structure at all temperatures
Different crystal structures at different temperatures
Any one of the above
Atoms distributed in random pattern

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Engineering Materials
In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled

Slowly in the furnace
Suddenly in a suitable cooling medium
Any one of these
In still air

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Engineering Materials
Connecting rod is, usually, made from

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

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Engineering Materials
For the allotropic forms of iron, the points of arrest are

Constant for all metals
The points where there is no further flow of metal
The points of discontinuity
The points where no further change occurs

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