An inductive pick-up used to measure the speed of a shaft has 120-toot – McqOptions

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1.	An inductive pick-up used to measure the speed of a shaft has 120-tooth wheel. If the number of pulse produced in a second is 3000, the r.p.m. of the shaft is
A.	1200
B.	1500
C.	1800
D.	3600
Answer» C. 1800

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