Civil Engineering Objective Questions { Building Construction }

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204. Softer variety of steel may be obtained by

A. Cementation process

B. crucible process

C. Bessemer process

D. Open hearth process.

205. The steel which contains fissures and cavities, manufactured by

A. Cementation process

B. Crucible process

C. Bessemer process

D. Open hearth process.

206. Cast steel is manufactured by

A. Cementation process

B. Crucible process

C. Bessemer process

D. Open hearth process.

207. Pick up the correct statement from the following :

A. In basic Bessemer process, the steel heats the converter

B. In open-hearth process, the furnace heats the steel

C. In siemens process, the impurities of pig iron are oxidised by the oxygen of the ore

D. all the above.

208. Pick up the correct statement from the following :

A. Steel produced by open hearth process is milder than that obtained by the bessemer process

B. Engineers prefer open hearth steel for structural purpose as it is more homogenous

C. Basic Bessemer process is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel

D. all the above.

209. Blister steel

A. is obtained by cementation process

B. is full of fissures and cavities

C. can not be forged

D. all the above.

210. For high grade instruments the steel preferred to, is

B. bessemer steel

D. whitworth compressed steel.

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