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If n=2 (rpm of bull wheel), l=2.5 mm (length of cutting stroke) and cutting speed=0.5 mm/minute, find the value of m (ratio of return time to cutting time).
Correct Answer: A — 9
Explanation:
C.S. = nl (1+m) / 100. Here, n=2, l=2.5, cs=0.5 and m can be found by putting these values in the above equation.