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Length of arc of contact is given by

A. Arc of approach - Arc of recess

B. Arc of approach + Arc of recess

C. Arc of approach / Arc of recess

D. Arc of approach × Arc of recess

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. A pulley and belt in a belt drive form a
  2. ABCD is a four bar mechanism in which AB = 310 mm and CD = 450 mm. AB and CD are both perpendicular…
  3. In a gear having involute teeth, the normal to the involute is a tangent to the
  4. The indicator using Watt mechanism is known as
  5. The example of higher pair is
  6. Kinematic pairs are those which have
  7. In a differential band brake as shown in the below figure, if the length OB is greater than OA, then…
  8. In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and…
  9. Pitch point on a cam is
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  11. The motion of a shaft in a circular hole is an example of
  12. The amplitude of vibration is always __________ the radius of the circle.
  13. In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then
  14. The two elements of a pair are said to form a _________ when they permit relative motion between them.
  15. Angular acceleration of a link can be determined by dividing the
  16. The mechanism consisting of three turning pairs and one sliding pair, is called a
  17. An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called
  18. When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be
  19. The axis of precession is __________ to the plane in which the axis of spin is going to rotate.
  20. Effort of a governor is the
  21. The unbalanced force due to revolving masses
  22. In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines,
  23. The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain,…
  24. The number of centers in a crank driven slider crank mechanism is
  25. Governor is used in automobile to
  26. The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where…
  27. In an ideal machine, the output as compared to input is
  28. In order to give a complete secondary balance of a multi-cylinder inline engine,
  29. The moment on the pulley which produces rotation is called
  30. Which of the following is a lower pair?