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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Q. The nuts and bolts are made from silicon steel.

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Q. Silicon in cast iron

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Q. The process which improves the machinability of steels, but lowers the hardness and tensile strength, is

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Q. A steel with 0.8% carbon and 100% pearlite is called

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Q. 18/8 stainless steel consists of

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Q. Vanadium when added to steel

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Q. The limestone in the charge of a blast furnace decomposes to give lime and carbon dioxide. The lime thus obtained

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Q. During the operation of a bessemer converter, the white flame indicates that the silicon and managenese had burnt and carbon has started oxidising.

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Q. The casting ability of aluminium increases when __________ is added to aluminium.

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