722. Purpose of side rake is to
A.Avoid work from rubbing against tool
B.Control chip flow
C.Strengthen tool edge
D.Break chips

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723. Relief angles on carbide tips are usually provided between
A.3 - 5°
B.5 - 8°
C.3 - 12°
D.12 - 15°

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724. A grinding wheel gets glazed (shining cutting edges) due to
A.Wear of abrasive grains
B.Breaking up of abrasive grains
C.Wear of bond
D.Cracks of grinding wheel

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725. In grinding operation, for grinding softer materials
A.Coarser grain size is used
B.Fine grain size is used
C.Medium grain size is used
D.Any grain size may be used

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726. Maximum cutting angles are used for machining
A.Mild steel
B.Aluminium alloys
C.Free machining steels
D.Nickel alloy

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727. A work on the milling machine can be indexed by
A.Universal milling attachment
B.Chasing dial
C.Dividing head attachment
D.Manipulating vertical and horizontal movements

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728. In tool signature, nose radius is indicated
A.In the beginning
B.At the end
C.In the middle
D.Not indicated

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