Q. The red flame during the operation of a bessemer converter indicates that the

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Q. Phosphor bronze has

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Q. In the austempering process of heat treatment, austenite changes into

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Q. Iron-carbon alloys containing 4.3% carbon are known as hypo-eutectic cast irons.

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Q. The approximate height of a blast furnace is

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Q. A steel alloy containing 36% nickel is called

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Q. The addition of manganese to aluminium improves corrosion resistance.

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Q. The temperature point at which the change ends on heating the steel is called

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Q. Admirality gun metal contains

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Q. The percentage of phosphorus is phosphor bronze is

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Q. In high speed steels, vanadium adds to the property of red hardness and tungsten and chromium add to high wear resistance.

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Q. For the pipe fitting like elbow, tee, union etc., which of the following is preferred?

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Q. Chilled cast iron is produced

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Q. Which of the following material has maximum malleability?

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Q. Nichrome contains more iron than Inconel.

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Q. Hardness of steel is increased by adding sulphur, lead and phosphorus.

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Q. German silver contains

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Q. The machine tool guide ways are usually hardened by

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Q. In a unit cell of a body centred cubic space lattice, there are __________ atoms.

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Q. Cast iron has

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