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Mechanical Engineering Objective Questions { Theory of Machines }

29. Sense of-tangential acceleration of a link
A.Is same as that of velocity
B.Is opposite to that of velocity
C.Could be either same or opposite to velocity
D.Is perpendicular to_that of velocity

30. A mechanism is an assemblage of
A.Two links
B.Three links
C.Four links or more than four links
D.All of the above

31. The number of links in pantograph mechanism is equal to

32. Elements of pairs held together mechanically is known as
A.Closed pair
B.Open pair
C.Mechanical pair
D.Rolling pair

33. Shaft revolving in a bearing is the following type of pair
A.Lower pair
B.Higher pair
C.Spherical pair
D.Cylindrical pair

34. Rectangular bar in a rectangular hole is the following type of pair
A.Completely constrained motion
B.Partially constrained motion
C.Incompletely constrained motion
D.Freely constrained motion

35. A foot step bearing and rotor of a vertical turbine form examples of
A.Incompletely constrained motion
B.Partially constrained motion
C.Completely constrained motion
D.Successfully constrained motion

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