Because the top of the connecting rod swings about the pin and changes direction each time the piston reaches mid-stroke, the relative speed between bearing and pin at mid-stroke is zero, （）to a maximum as the piston approaches top or bottom dead center and then （） back to zero again as the piston approaches mid-stroke and the connecting rod changes direction. -题库考试答案搜索网

Because the top of the connecting rod swings about the pin and changes direction each time the piston reaches mid-stroke, the relative speed between bearing and pin at mid-stroke is zero, （）to a maximum as the piston approaches top or bottom dead center and then （） back to zero again as the piston approaches mid-stroke and the connecting rod changes direction.

单选题

2022-01-12 17:25

A、accelerates；decelerates
B、accelerates；accelerates
C、decelerates；decelerates
D、decelerates；accelerate

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正确答案

A

试题解析

标签：船舶电气与船舶安全

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