Q. In cold working of metal as compared to its hot working

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Q. __________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

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Q. Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

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Q. Which of the following is a weak acid ?

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Q. Pig iron is a product of

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Q. Safety matches is produced using

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Q. Calorific value of __________ are almost same.

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Q. Which of the following pairs is not correctly matched ?

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Q. Commonly used flux for brazing is

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Q. Iron has got __________ isotopes.

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Q. Pick out the wrong statement.

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Q. Old cycle handles are coated with nickel using

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Q. CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the

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Q. Pick out the wrong conversion of absolute & kinematic viscosities.

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Q. __________ is not used as a material of construction in thermocouples.

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Q. Coarse grained steels have

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Q. Steel balls are manufactured by cold heading. After cold forming, they are subjected to

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Q. Free oxygen is removed from boiler feed water, because it

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Q. Out of the following, the materials having maximum magnetic permeability is

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Q. __________ is not a heat treatment process.

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