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Which of the following is defined as the distance between the axis of the main journal and the crankpin center lines is exactly one half of the engine stroke?

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Which of the following is defined as the distance between the axis of the main journal and the crankpin center lines is exactly one half of the engine stroke?

(a) Crank length

(b) Crank web

(c) Crank-throw

(d) Crank shift

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Question is taken from Engine Components in portion Basic Engine Components of Automotive Engine Design

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Right answer is (b) Crank web

To explain: The distance between the axis of the main journal and the crankpin center lines is exactly one half of the engine stroke and is called crank-throw which determines the crankshaft turning effort.

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