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.Management Sciences
A. point or line contact between the two elements when in motion
B. surface contact between the two ele-ments when in motion
C. elements of pairs not held together mechanically
D. two elements that permit relative motion
E. none of the above
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- The example of higher pair is_________________?
- A. belt, rope and chain drives B. gears, cams C. ball and roller bearings D. all of the above E. none of the above...
- Elements of pairs held together mechanically is known as ___________________?
- A. closed pair B. open pair C. mechanical pair D. rolling pair E. none of the above...
- The Ackermann steering mechanism is preferred to the Davis type in automobiles because____________________?
- A. the former is mathematically accurate B. the former is having turning pair C. the former is most economical D. the former is most rigid E. none of thfr above...
- Which of the following mechanisms produces mathematically an exact straight line motion____________________?
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- Instantaneous center of rotation of a link in a four bar mechanism lies on _______________?
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