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Mechanical Engineering Objective Questions { Theory of Machines }

85. The following is the inversion of slider crank chain mechanism
A.Whitworth quick return mechanism
B.Hand pump
C.Oscillating cylinder engine
D.All of the above
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86. A quartemary joint is equivalent to
A.One binary joint
B.Two binary joints
C.Three binary joints
D.Four binary joints
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87. A typewriter mechanism has 7 number of binary joints, six links and none of higher pairs. The mechanism is
A.Kinematically sound
B.Not sound
C.Soundness would depend upon which link is kept fixed
D.Data is not sufficient to determine same
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88. In S.H.M., acceleration is proportional to
C.Rate of change of velocity
D.All of the above
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89. A body having moment of inertia of 30 kg m2 is rotating at 210 RPM and meshes with another body at rest having M.I. of 40 kg m2. The resultant speed after meshing will be
A.90 RPM
B.100 RPM
C.80 RPM
D.Data are insufficient
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90. Inertia force acts
A.Perpendicular to the accelerating force
B.Along the direction of accelerating force
C.Opposite to the direction of accelerating force
D.In any direction w.r.t. accelerating force depending on the magnitude of two
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91. The frequency of oscillation at moon compared to earth will be
A.6 times more
B.6 times less
C.2.44 tides more
D.2.44 times/less
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