Question

The standard specification of a grinding wheel is
$A-46-M-6-V-21$. It means a wheel of

• A. Aluminum oxide of mesh size $6$
• B. Boron carbide of mesh size $46$
• C. Aluminum oxide of mesh size $46$
• D. Silicon carbide of mesh size $6$

Answer 1

The correct option is C Aluminum oxide of mesh size $46$

Aluminum oxide of mesh size $46$