533. Chromium is H.S.S. cutting tool material is
A.1%
B.4%
C.18%
D.0.06%

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534. In the case of a shaping machine, feeding of the job is done
A.At the beginning of the cutting stroke
B.At the middle of the cutting stroke
C.At the end of the cutting stroke
D.At the end of the return stroke

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535. In the case of a shaper equipped with Whitworth mechanism
A.The cutting stroke is faster than the return stroke
B.The return stroke is faster than the cutting stroke
C.Both the cutting stroke and the return stroke take the same time
D.The return stroke is slower than the cutting stroke

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536. The cutting speed of the tool in a mechanical shaper is
A.Maximum at the beginning of the cutting stroke
B.Maximum at the end of the cutting stroke
C.Maximum at the middle of the cutting stroke
D.Minimum at the middle of the cutting stroke

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537. Size of shaper is specified by
A.Length of stroke
B.Size of table
C.Maximum size of tool
D.Ratio of forward to return stroke

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538. A Shaper employs following for quick return motion
A.Whitworth mechanism
B.Crack and slotted iink mechanism
C.Hydraulic mechanism
D.Any one of the above

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539. To prolong the life of shaper tools after they are ground, they should be
A.Lapped
B.Sanded
C.Stoned
D.Hardened

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