Grinding MCQ with Answers

Grinding MCQ with Answers

16) What type of natural abrasives are crushed to produce abrasive grains for making the grinding wheels and lapping compound?

Answer is:

Diamond

17) What type of abrasives are used for grinding low tensile strength materials like brass, copper, grey cast iron and aluminium?

Answer is:

Green silicon carbide

18) What type of abrasives are used for grinding high tensile strength materials like carbon steels. high speed steels?

Answer is:

Aluminium oxide

19) What type of natural abrasive contains aluminium oxide and other impurities?

Answer is:

Emery

What type of natural abrasive contains aluminium oxide and other impurities?

20) What type of natural abrasives contains 95% of natural aluminium oxide and remaining impurities?

Answer is:

Corundum

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