Q. The size of a cam depends upon

  • (A) base circle
  • (B) pitch circle
  • (C) prime circle
  • (D) pitch curve
πŸ’¬ Discuss
βœ… Correct Answer: (A) base circle

Q. The angle between the direction of the follower motion and a normal to the pitch curve is called

  • (A) pitch angle
  • (B) prime angle
  • (C) base angle
  • (D) pressure angle
πŸ’¬ Discuss
βœ… Correct Answer: (D) pressure angle

Q. A circle drawn with centre as the cam centre and radius equal to the distance between the cam centre and the point on the pitch curve at which the pressure angle is maximum, is called

  • (A) base circle
  • (B) pitch circle
  • (C) prime circle
  • (D) none of the mentioned
πŸ’¬ Discuss
βœ… Correct Answer: (B) pitch circle

Q. The cam follower generally used in automobile engines is

  • (A) knife edge follower
  • (B) flat faced follower
  • (C) spherical faced follower
  • (D) roller follower
πŸ’¬ Discuss
βœ… Correct Answer: (C) spherical faced follower

Q. The cam follower extensively used in air- craft engines is

  • (A) knife edge follower
  • (B) flat faced follower
  • (C) spherical faced follower
  • (D) roller follower
πŸ’¬ Discuss
βœ… Correct Answer: (D) roller follower

Q. In a radial cam, the follower moves

  • (A) in a direction perpendicular to the cam axis
  • (B) in a direction parallel to the cam axis
  • (C) in any direction irrespective of the cam axis
  • (D) along the cam axis
πŸ’¬ Discuss
βœ… Correct Answer: (A) in a direction perpendicular to the cam axis

Q. A radial follower is one

  • (A) that reciprocates in the guides
  • (B) that oscillates
  • (C) in which the follower translates along an axis passing through the cam centre of rotation.
  • (D) none of the mentioned
πŸ’¬ Discuss
βœ… Correct Answer: (A) that reciprocates in the guides

Q. Ofset is provided to a cam follower mechanism to

  • (A) minimise the side thrust
  • (B) accelerate
  • (C) avoid jerk
  • (D) none of the mentioned
πŸ’¬ Discuss
βœ… Correct Answer: (A) minimise the side thrust

Q. For low and moderate speed engines, the cam follower should move with

  • (A) uniform velocity
  • (B) simple harmonic motion
  • (C) uniform acceleration and retardation
  • (D) cycloidal motion
πŸ’¬ Discuss
βœ… Correct Answer: (B) simple harmonic motion

Q. For high speed engines, the cam follower should move with

  • (A) uniform velocity
  • (B) simple harmonic motion
  • (C) uniform acceleration and retardation
  • (D) cycloidal motion
πŸ’¬ Discuss
βœ… Correct Answer: (D) cycloidal motion

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