1000+ Mechanism and Machines MCQ Questions & Answers Pdf - 1
Question: 1
Sense of tangential acceleration of a link
(A) is perpendicular to that of velocity
(B) could be either same or opposite to velocity
(C) is opposite to that of velocity
(D) is same as that of velocity
Ans: B
could be either same or opposite to velocity
Question: 2
The locus of a point on a thread unwound from a cylinder will be
(A) cycloidal
(B) involute
(C) a circle
(D) a straight line
Ans: B
involute
Question: 3
Kinematic pairs are those which have
(A) two elements having Coroili's component
(B) minimum of two instantaneous centres
(C) two elements held together mechanically
(D) two elements having relative motion
Ans: D
two elements having relative motion
Question: 4
Maximum fluctuation of energy is the
(A) difference between the maximum and minimum energies
(B) ratio of the maximum fluctuation of energy to the work done per cycle
(C) variation of energy above and below the mean resisting torque line
(D) ratio of maximum fluctuation of speed to the mean speed
Ans: A
difference between the maximum and minimum energies
Question: 5
The shaft of a steam turbine is usually rotated at
(A) there is no such criterion
(B) much above the natural frequency of vibration
(C) much blow the natural frequency of vibration
(D) natural frequency of vibration
Ans: B
much above the natural frequency of vibration
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