Q. The property of a material essential for spring materials is

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Q. A steel with carbon above 0.8% is known as hyper-eutectoid steel.

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Q. Which of the following material has nearly zero coefficient of expansion?

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Q. In normalising process, the hypo-eutectiod steel is heated from 30° C to 50° C above the upper critical temperature and then cooled in still air.

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Q. The alloying element which can replace tungsten in high speed steels is

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Q. The brown smoke during the operation of a bessemer Converter indicates that the

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Q. Martensite has needle like structure and is magnetic.

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Q. Monel metal is an alloy of

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Q. In induction hardening, the depth of hardening is controlled by controlling the voltage.

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Q. The austenite is a solid solution of carbon or iron carbide in gamma-iron.

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Q. The aluminium alloy, mainly used, for anodized utensil manufacture, is

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Q. The toughness of a material __________ when it is heated.

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Q. The coordination number of a face centred cubic space lattice is

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Q. Spheroidal grey cast iron has graphite flakes.

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Q. Bronze is an alloy of

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Q. Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

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Q. The hardness of steel depends upon the

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Q. Cartidge brass can be

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Q. Which of the following statement is correct?

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Q. Blast furnace is used to produce

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