The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

  • A0° and 90°
  • B0° and 180°
  • C90° and 180°
  • D180° and 360°
Correct Answer : (B)

0° and 180°

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For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

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