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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Q. Which of the following statement is true about brittle fracture?

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Q. Grey cast iron has

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Q. Induction hardening is basically a

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Q. When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces

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Q. The strength is the ability of a material to resist

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