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Stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. Overall average speed of operation is
  • a)
    3.75 m/min
  • b)
    5.0 m/min
  • c)
    7.5 m/min
  • d)
    15.0 m/min
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Stroke of a shaping machine is 250 mm. It makes 30 double strokes per ...
Given data:
Stroke of a shaping machine = 250 mm
Number of double strokes per minute = 30

To find: Overall average speed of operation

Formula used:
Overall average speed of operation = (length of stroke x number of double strokes per minute) / 1000

Calculation:
Substituting the given values in the formula, we get
Overall average speed of operation = (250 x 30) / 1000
= 7.5 m/min

Therefore, the correct answer is option C, i.e., 7.5 m/min.

Explanation:
The overall average speed of operation of a shaping machine is the distance traveled by the tool in one minute. As the machine makes 30 double strokes per minute, the tool travels a distance of 250 mm x 30 = 7500 mm or 7.5 m in one minute. Hence, the overall average speed of operation is 7.5 m/min.
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Community Answer
Stroke of a shaping machine is 250 mm. It makes 30 double strokes per ...
Velocity =2*0.25*30=15m/min
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Stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. Overall average speed of operation isa)3.75 m/minb)5.0 m/minc)7.5 m/mind)15.0 m/minCorrect answer is option 'C'. Can you explain this answer?
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