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Chapter:

26. Which of following represents correct symbol of epoxy bond in a specification of grinding wheel?

V R P S

R

‘P’ represents for epoxy bond. Fifth place of ISO designation of grinding wheel represents type of bond.

Hint Answer

27. For practical honing conditions, cross hatch angle in degrees is generally taken in range of

20 to 40 40 to 50 50 to 60 10 to 15

20 to 40

Cross hatch angle is generally taken from 20 degrees to 40 degrees.

Hint Answer

28. Which of following represents correct symbol of rubber bond in a specification of grinding wheel?

V R B S

R

‘R’ represents for rubber bond. Fifth place of ISO designation of grinding wheel represents type of bond.

Hint Answer

29. Material removal rate of grinding process in comparison to material removal rate in facing on a la is

Small Large Same Can’t say about material removal rate

Small

Material removal rate in grinding process is very small. Hence grinding is mostly use as a finishing process. Only small portion of abrasives are involved in grinding process and hence has less material removal rate.

Hint Answer

30. Grinding wheel is specified as “A 600 K 5 B 17”. Grain size of a wheel will be

Coarse Medium Fine Very Fine

Very Fine

‘600’ represents grain size, which comes under very fine grain size. Second value in specification represents grain size.

Hint Answer

31. Grinding wheel specified as “C 8 K 5 R 17” in ISO designation. What is type of bond present in grinding wheel?

Vitrified Rubber Shellac Epoxy

Rubber

Fifth place of ISO designation of grinding wheel represents a type of bond and “R” represents rubber.

Hint Answer

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Topics

This Chapter consists of the following topics

Grinding

Surface Finishing Operations and Unconventional Machining Processes

Which of following represents correct symbol of epoxy bond in a specification of grinding wheel?

For practical honing conditions, cross hatch angle in degrees is generally taken in range of

Which of following represents correct symbol of rubber bond in a specification of grinding wheel?

Material removal rate of grinding process in comparison to material removal rate in facing on a la is

Grinding wheel is specified as “A 600 K 5 B 17”. Grain size of a wheel will be

Grinding wheel specified as “C 8 K 5 R 17” in ISO designation. What is type of bond present in grinding wheel?

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