Gear Basics-2 MCQ

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• For a given pair of mating gear, angle of action is 19 degree and pitch angle is 4 degree. Contact ratio is equal to
  ক

  3.20

  খ

  2.13

  গ

  4.75

  ঘ

  6.32
• Which of the following is a standard pressure angle in degree?
  ক

  20

  খ

  21

  গ

  13.5

  ঘ

  19
• Contact ratio is given by
  ক

  Angle of action/pitch angle

  খ

  Angle of action*pitch angle

  গ

  Angle of action-pitch angle

  ঘ

  Angle of action +pitch angle
• Number of teeth in contact is given by
  ক

  Arc of contact

  খ

  Path of contact

  গ

  Contact ratio

  ঘ

  Path of recess
• Angle subtended by arc of contact at the centre of pitch circle is known as
  ক

  Contact ratio

  খ

  Angle of action

  গ

  Arc of recess

  ঘ

  Arc of approach
• Portion of arc of contact from the pitch point to the end of engagement is known as
  ক

  Contact ratio

  খ

  Angle of friction

  গ

  Arc of recess

  ঘ

  Arc of approach
• Portion of arc of contact from the beginning of the engagement to the pitch point is known as
  ক

  Contact ratio

  খ

  Angle of friction

  গ

  Arc of recess

  ঘ

  Arc of approach
• Circumferential distance between points from the beginning to the end of engagement of two mating gear on pitch circle is known as
  ক

  Arc of contact

  খ

  Path of contact

  গ

  Path of approach

  ঘ

  Path of recess
• Portion of path of contact from the pitch point to end of engagement is known as
  ক

  Arc of contact

  খ

  Path of contact

  গ

  Path of approach

  ঘ

  Path of recess
• Path of contact from the beginning of engagement to the pitch point is known as
  ক

  Arc of contact

  খ

  Path of contact

  গ

  Path of approach

  ঘ

  Path of recess
• Distance between the points of contact of two mating teeth from the beginning of engagement to the end of engagement is known as
  ক

  Arc of contact

  খ

  Path of contact

  গ

  Path of approach

  ঘ

  Path of recess
• Which of the following is not a standard pressure angle in degree?
  ক

  20

  খ

  25

  গ

  14.5

  ঘ

  19