The （） of the semi-built method of the construction cra

单项选择题

The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web.

A.advantages
B.disadvantages
C.power advantages
D.power disadvantages

相关考题

单项选择题 Today, crankshafts for large 2-stroke crosshead engines are of the （）type.

单项选择题 The crankpins and journals were machined and matching holes bored in the webs, which were slightly （） in diameter.

单项选择题 The crankshafts on the large modern 2-stroke crosshead engines are （）big （）makes as a single unit and so are constructed by joining together individual forgings.

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船舶电气与船舶安全