📊 Machine Design
Q. A woodruff key is
  • (A) A tapered key with head at one end
  • (B) Fitted in pairs at right angles
  • (C) Capable of tilting in a recess milled out in the shaft
  • (D) All of the above
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✅ Correct Answer: (C) Capable of tilting in a recess milled out in the shaft

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