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Metallurgical Engineering · all questions

Miscellaneous in Metallurgy
practice.

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To produce the jog from the intersection of two dislocations, the necessary condition is

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A thermally thin body is the one for which

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Explanation of free energy can be done

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An aluminium alloy rod of diameter 15 mm and length 120 mm is subjected to a tensile load of 35,000 N along its axis. The Young's modulus and Poisson's ratio for aluminium are 70 GPa and 0.33 respectively.

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A box contains 5 white balls and 3 red balls. Two balls are withdrawn from the box randomly, one after another (without replacement). The probability that the two balls withdrawn are of different colour is

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Brazing is done at

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The density and corresponding crystallinity of two poly-propylene material are given below.
Density.kg.m-3 Crystallinity,%
904 62.8
895 54.4
The density of totally amorphous polypropylene (in kg.m-3) is:

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Greater the amount of deformation

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An ability of atoms molecules and ions to diffuse inside the material under the influence of concentration gradient.

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Most of the thermosetting polymers are

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Which is the correct statement

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The heat treatment process in which heating of steel is done to a temperature just below the lower critical temperature, holding for prolonged period, followed by slow cooling is called

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In Laminar flow, the friction factor

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Burger's vector is an/a . . . . . . . . for a crystal

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The rate of energy radiated per unit area of surface per unit wavelength

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Which among the following polymers have lowest solubility?

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in gas welding maximum thickness of material which can be welded with a 30 mm diameter welding rod is

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Which of the following oxide addition results in polymerisation (e.g., network formation) in a silicate slag?

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Transmissivity is defined as

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Which property decreases on strain hardening

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