EXAMIANS
Presence of small quantity of sulphur in low carbon steel improves its
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The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
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Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.
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Deformation band is absent in materials having __________ lattice crystal structure.
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__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.
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Toughness of a material is measured by the
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A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.
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A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
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'Flare tower' used in industry is meant for
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Dies for wire drawing are generally made of
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