31. In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to
32. In under damped vibrating system, if $${{x_1}}$$ and $${{x_2}}$$ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to
33. The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as
34. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as
35. The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line
36. Which of the following property of the instantaneous center is correct?
37. The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.
38. The pair is known as a higher pair, when the relative motion between the elements of a pair is
39. In order to give a complete secondary balance of a multi-cylinder inline engine,
40. In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines
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