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Coarse grained steels have

A. Low toughness

B. No tendency to distort

C. High density

D. Very high toughness

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  4. Corrosion rate cannot be lowered by reducing the __________ of the corroding medium.
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  15. The following thermocouple may be used for measuring temperature upto 1873°K.
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  20. Wavelength of radiation emitted by a body depends on the __________ of its surface.
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