The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute

Question

The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. The overall average speed of operation is

Options:

A . 3.75 m/min

B . 5 m/min

C . 7.5 m/min

D . 15 m/min

Answer: Option C

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