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.Management Sciences
Category: Theory of Machines
Shaft revolving in a bearing is the following type of pair________________?
A. lower pair
B. higher pair
C. spherical pair,
D. cylindrical pair
E. bearing pair
Crowning on pulleys helps__________________?
A. in increasing velocity ratio
B. in decreasing the slip of the belt
C. for automatic adjustment of belt posi-tion so that belt runs centrally
D. increase belt and pulley life
E. none of the above
If the radius of gyration of a compound pendulum about an axis through e.g. is more, then its frequency of oscillation will be_______________?
A. less
B. more
C. same
D. data are insufficient to determine same
E. none of the above
The number of centers in a crank driven slider crank mechanism are_______________?
A. 0
B. 2
C. 4
D. 6
E. may be any number depending upon position of mechanism
Which of the following disciplines provides study of relative motion between the parts of a machine______________?
A. theory of machines
B. applied mechanics
C. mechanisms
D. kinetics
E. kinematics
The lower pair is a_____________________?
A. open pair
B. closed pair
C. sliding pair
D. point contact pair
E. does not exist
Typewriter constitutes__________________?
A. machine
B. structure
C. mechanism
D. inversion
E. none of the above
Polar moment of inertia (IP) of ac disc is to ht determined by suspen by a wire and noting the frequei oscillations (f) ?
A. Ipocf
B. Ipocf
C. Ip oc j
D. Ipoc-
E. none of the above
The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line________________?
A. joining the corresponding points
B. perpendicular to line as per A.
C. not possible to determine with these data
D. at 45° to line as per A.
E. none of the above
A cam mechanism imparts following motion___________________?
A. rotating
B. oscillating
C. reciprocating
D. all of the above
E. none of the above
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