Q. The heat treatment process used for softening hardened steel is

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Q. The dieing down of a white flame during the operation of a bessemer converter indicates that the air is burning out silicon and manganese.

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Q. The electric process of steel making is especially adopted to

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Q. Specify the sequence correctly

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Q. Thermoplastic materials are those materials which

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Q. Which of the following material has maximum ductility?

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Q. An eutectoid steel consists of

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Q. Shock resisting steels should have

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Q. Haematite iron ore contains iron about

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Q. The material in which the atoms are arranged regularly in some directions but not in others, is called

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Q. The steel produced by bessemer or open hearth process is __________ to that produced by L-D process.

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Q. Crystal structure of a material is, generally, examined by

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Q. Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

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Q. Nodular cast iron is produced by adding __________ to the molten cast iron.

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Q. Free carbon in iron makes the metal

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Q. The cupola is used to manufacture

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Q. The type of space lattice found in gamma-iron is

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Q. The property of a material due to which it breaks with little permanent distortion, is called

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Q. The ability of a material to absorb energy in the plastic range is called

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Q. Brass is an alloy of

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