Question:-
In the grinding wheel of A60 G7 B 23, B stands for
Option (A)
Resinoid bond
Option (B)
Rubber bond
Option(C)
Shellac bond
Option(D)
Silicate bond
Correct Option:
(A)
Question Solution:
(A/1) (60/2) (G/3) (7/4) (B/5) (23/6)
1. Abrasive type A—Aluminium oxide, C—Silicon carbide
2. Abrasive grain size, 60 – medium
3. Grade A (Soft) – to z (hard)
4. Structure 1 (Dense) to 16 (open)
5. Bound type B-Resinoid, R-Rubber, E-Shellac, S-Silicate
6. Manufacturer’s record
question-answer-faq-2963