Question

10) a grinding wheel marked with "c" is made with the abrasive ?
A)aluminium oxide
B)silicon carbide
C)diamond
D)corroundum​

Answer 1

Answer:

Aluminum oxide

Explanation:

General-purpose aluminum oxide wheels, usually gray and 95 percent pure are the most popular abrasives used. They are used for grinding most steels and other ferrous alloys. They are used for grinding most steels and other ferrous alloys.

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Answer 2

A grinding wheel marked with "c" is made with the abrasive "Silicon carbide". (option b)

• A grinding wheel is a kind of cutting tool, used for removing excess surface material, grinding, finishing, etc.
• A grinding wheel consists of millions of microscopic grains of abrasive material that are bonded together. This abrasive does the cutting.
• A specific standard marking system is used for the specification of grinding wheels.
• Its sequence is: "Abrasive type – Grain size – Grade of bond – Structure – Bond type".
• There are different abrasive types that are used. A few of them with their codes used in the above sequence are:

1. A = Aluminium oxide
2. B = Cubic boron nitride
3. C = Silicon carbide
4. D = Diamond

• Thus the correct answer will be option 'b', that is, "Silicon carbide".

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