715. Which of the following machines utilise fly cutter?
A.Lathe
B.Milling machine
C.Shaper
D.Broaching

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716. The positive radial rake angle in most of the high speed milling cutters is
A.-5 to 0°
B.0 - 5°
C.5 - 10°
D.10 - 15°

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717. Pick up the correct statement for milling
A.Cutter is rotated in the opposite direction of travel of job
B.Thickness of chip is maximum at the beginning of cut
C.Cutting force is directed downwards
D.Coolant can be easily poured on the cutting edge

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718. A right hand tool is one which is used to
A.Start a cut from tailstock and cut toward the headstock
B.Start a cut from head stock and cut toward the tailstock
C.Start facing at the centre and cut outward
D.Both (A) and (C) above

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719. For turning mild steel, type of tool used is
A.Left hand type
B.Right hand type
C.Any one of the two
D.Depends on cutting angles and tool material

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720. Negative rakes are used for
A.Heavy loads
B.Harder materials
C.Carbide tools
D.All of the above

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721. The helix angle of the teeth of a heavy duty plain milling cutter is of the order of
A.-15° to 0°
B.0° to 5°
C.10° to 20°
D.25° to 45°

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