Q. Duralumin has better strength than Y-alloy at high temperature.

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Q. Normalising of steel is done to

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Q. A steel containing 12 to 14% chromium and 0.12 to 0.35% carbon is called martensitic stainless steel.

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Q. When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.

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Q. Shock resistance of steel is increased by adding

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Q. In low carbon steels, __________ raises the yield point and improves the resistance to atmospheric corrosion.

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Q. A steel containing 16 to 18% chromium and about 0.12% carbon is called

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Q. The alloy, mainly used for corrosion resistance in stainless steels is

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Q. The temperature required for full annealing in hyper-eutectoid steel is

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Q. Chromium when added to steel __________ the tensile strength.

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Q. Which of the following is added in low carbon steels to prevent them from becoming porous?

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Q. A steel with carbon __________ is known as hypo-eutectoid steel.

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Q. Free cutting steels

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Q. The presence of hydrogen in steel causes

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Q. Y-alloy contains

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Q. The steel scrap added in the charge of cupola controls the grade of cast iron produced.

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Q. The main alloying elements high speed steel in order of increasing proportion are

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Q. Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

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Q. Which of the following metal is used for nuclear energy?

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Q. Tin base white metals are used where the bearings are subjected to

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