1949Mechanical EngineeringMedium
“Open pairs are those which have________?
Apoint or line contact between the two elements when in motion
Btwo elements that permit relative motion
Celements of pairs not held together mechanically
Dsurface contact between the two ele-ments when in motion
Enone of the above
Correct answer
C. elements of pairs not held together mechanically
Explanation
The correct answer is elements of pairs not held together mechanically.