Question:-
A Grinding wheel of 150mm diameter is rotating at 3000 r.m.p. The grinding speed is:
Option (A)
7.5p m/s
Option (B)
15p m/s
Option(C)
45p m/s
Option(D)
450p m/s
Correct Option:
(A)
Question Solution:
V = (pDN/60)
V = (p x 150 x 3000)/(60 x 1000) = 7.5 pm/s
question-answer-faq-3302