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Mechanical Engineering QUESTION #2478
Question 1
A 'crank' in mechanism terminology is defined as:
  • A link that oscillates back and forth about a fixed pivot
  • A link that has complex (combined rotation and translation) motion
  • A link that makes a complete (\(360^\circ\)) revolution about a fixed grounded pivot✔️
  • The output link of any mechanism
Correct Answer Explanation
By definition: a crank makes a complete revolution about a fixed (grounded) pivot; a rocker oscillates back and forth about a fixed pivot; a coupler has complex motion and is not fixed to ground.