253. Iron alloyed with carbon upto 2% is called
A.Cast iron
B.Steel
C.Mild steel
D.High carbon steel

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254. Pearlitic or eutectoid steels have carbon content
A.Equal to 0.83%
B.Less than 0.83%
C.More than 0.83% and upto 2%
D.More than 2%

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255. The binding material for cementite carbide tools is
A.Iron
B.Chromium
C.Nickel
D.Cobalt

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256. Hypoeutectoid steels have carbon content
A.Equal to 0.83%
B.Less than 0.83%
C.More than 0.83% and upto 2%
D.More than 2%

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257. Phosphorous and sulphur in manufacturing steel can be removed only by
A.Acid bessemer converter
B.Induction furnace
C.Basic bessemer converter
D.Neutral bessemer converter

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258. Hypereutectoid steels have carbon content
A.Equal to 0.83%
B.Less than 0.83%
C.More than 0.83% and upto 2%
D.More than 2%

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259. Cementite phase has carbon content
A.Less than 0 83%
B.More than 0.83% and less than 2%
C.More than 2%
D.More than 6.67%

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