2. Questions Bank
  3. Railways
  4. NTPC (Technical Ability)
  5. Theory of Machines and Machine Design

Railways NTPC (Technical Ability) Theory of Machines and Machine Design Question Bank Theory of Machines

  • question_answer
    In full depth \[14\frac{1}{2}\] degree involute system, the smallest number of teeth in a pinion which meshes with rack without interference is:

    A) 12                                

    B) 16

    C) 25                                

    D) 32

    Correct Answer: D

    Solution :

    \[{{z}_{\min }}=\frac{2}{{{\sin }^{2}}14.5{}^\circ }=32\]


You need to login to perform this action.
You will be redirected in 3 sec spinner