Theory of Machine | Theory of Machine Objective Type Questions and answers


11. Kinematic pairs are those which have.......


   A.point or line contact between the two elements when in motion

   B.surface contact between the two elements 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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D.two elements that permit relative motion

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12. A kinematic chain requires at least.......


   A.2 links and 3 turning pairs

   B.3 links and 4 turning pairs

   C.4 links and 4 turning pairs

   D.5 links and 4 turning pairs

   E.none of the above


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C.4 links and 4 turning pairs

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13. A cam with a roller follower would constitute following type of pair.......


   A.lower pair

   B.higer pair

   C.open pair

   D.close pair

   E.cam pair


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B.higer pair

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14. Open pairs are those which have.......


   A.point or line contact between the two elements when in motion

   B.surface contact between the two elements when in motion

   C.elements of paires not held together mechanically

   D.two elements that permit relative motion

   E.none of the above


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C.elements of paires not held together mechanically

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15. The main disad vantage of the sliding pair is that it is.......


   A.bulky

   B.wears rapidly

   C.difficult to manufacture

   D.(a) and (b) above

   E.(a) and (c) above


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D.(a) and (b) above

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