πŸ“Š Theory Of Machine
Q. In an open pair, the two elements of a pair
  • (A) Have a surface contact when in motion
  • (B) Have a line or point contact when in motion
  • (C) Are kept in contact by the action of external forces, when in motion
  • (D) Are not held together mechanically
πŸ’¬ Discuss
βœ… Correct Answer: (D) Are not held together mechanically

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