The actual feed in centreless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)

The actual feed in centreless grinders is given by (where d = Dia. of

1.	The actual feed in centreless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)
A.	πd
B.	πd n
C.	πd n sin α
D.	πd n cos α
Answer» D. πd n cos α