Q. Tempering of steel is done to make it

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Q. Concrete tank can be used to store

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Q. Zinc is highly __________ at room temperature.

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Q. Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property ?

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Q. Most common stainless steel type 316, which is highly resistant to corrosion contains

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Q. Muntz metal is a/an alloys of

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Q. Rotary kilns in cement industry are lined with____bricks.

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Q. Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.

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Q. Which of the following will have the highest melting point ?

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Q. Galvanising is generally done on

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Q. Tin coating on metals is not done by

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Q. The softest material just next to talc in the Mho's scale is

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Q. 18/8 stainless steel means, that it contains

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Q. Glass is corroded by

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Q. Iron alloyed with carbon upto 2% is called

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Q. Carbon is present in the combined form (carbide) in case of

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Q. Chilled iron castings are

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Q. A hardness depth of about 3 mm can be achieved by induction hardness in __________ seconds.

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Q. Presence of nitrogen in steel

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Q. Very high sulphur in pig iron makes

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