Manufacturing And Production Technology
Which of the following statement is correct regarding grinding of high carbon steel?

All of these
Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
Aluminium oxide wheels are employed.
The grinding wheel has to be of open structure.

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Manufacturing And Production Technology
The primary purpose of a sprue in a casting mould is to

Act as a reservoir for molten metal
Feed molten metal from the pouring basin to the gate
Help feed the casting until all solidification takes place
Feed the casting at a rate consistent with the rate of solidification

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Manufacturing And Production Technology
The grooving is an operation of

Enlarging the end of a hole cylindrically
Beveling the extreme end of a workpiece
Embossing a diamond shaped pattern on the surface of a workpiece
Reducing the diameter of a workpiece over a very narrow surface

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