The two elements of a pair are said to form a higher pair, when they

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Mr. Dubey

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📊 Theory Of Machine

Q. The two elements of a pair are said to form a higher pair, when they

(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) Permit relative motion

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✅ Correct Answer: (B) Have a line or point contact when in motion

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