If the longitudinal feed in centreless grinding is expressed by Vf =

1.	If the longitudinal feed in centreless grinding is expressed by Vf = DN sin , D stands for
A.	Diameter of blank
B.	Diameter of finished workpiece
C.	Diameter of control wheel
D.	Diameter of grinding wheel
Answer» D. Diameter of grinding wheel

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If the longitudinal feed in centreless grinding is expressed by Vf = DN sin , D stands for

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