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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Q. Silicon percentage in iron castings to have maximum hardness should be about

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Q. Nickel as a material of construction

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Q. __________ moulding process can not be used for thermoplastic plastics.

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Q. Which of the following crystal structures characterises the ferritic stainless steel ?

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Q. 'Semi steel' is

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Q. Which of the following is a low melting point metal ?

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Q. Trough of an apron conveyor is made of

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Q. Pick out the wrong statement.

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Q. Which of the following finds the least commercial use ?

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Q. Which of the following is the most widely used insulating material for steam carray-ing pipelines ?

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Q. Dry chlorine can be handled in a vessel made of

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Q. Brine solution is stored/treated in __________ lined vessels/pipes.

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Q. Steel balls for ball bearings are generally made of __________ steel.

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Q. Beehive coke ovens are made of __________ bricks.

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Q. Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the __________ stress.

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Q. Which of the following is the hardest material ?

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