Q.

The contact ratio is given by

  • A(Length of the path of approach)/(Circular pitch)
  • B(Length of path of recess)/(Circular pitch)
  • C(Length of the arc of contact)/(Circular pitch)
  • D(Length of the arc of approach)/cosφ
Correct Answer : (C)

(Length of the arc of contact)/(Circular pitch)

Hints :

The contact ratio is given by (Length of the arc of contact)/(Circular pitch).

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