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  • question_answer The lead angle of a worm is \[22.5{}^\circ .\] Its helix angle will be:                                            

    A) \[22.5{}^\circ \]           

    B) \[45{}^\circ \]               

    C) \[67.5{}^\circ \]           

    D) \[90{}^\circ \] 

    Correct Answer: C

    Solution :

    Helix angle, \[\alpha =90{}^\circ -\]lead angle, \[\gamma \,\,90{}^\circ -22.5{}^\circ =67.5{}^\circ \]


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