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.Management Sciences
Category: Theory of Machines
The Scott-Russell mechanism consists of_________________?
A. sliding and turning pairs
B. sliding and rotary pairs
C. turning and rotary pairs
D. sliding pairs only
E. turning pairs only
For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimidstroke respectively, is__________________?
A. maximum and zero
B. zero and maximum
C. minimum and maximum
D. zero and minimum
E. maximum and minimum
In S.H.M., the velocity vector w.r.t. displacement vector _________________?
A. leads by 90°
B. lags by 90°
C. leads by 180°
D. are in phase
E. could be anywhere.
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__________________?
A. turning pair
B. rolling pair
C. sliding pair
D. spherical pair
E. lower pair
Corioli’s component acts________________?
A. perpendicular to sliding surfaces
B. along sliding surfaces
C. somewhere in between above two
D. unpredictable
E. none of the above
A slider crank chain consists of following numbers of turning and sliding pairs_________________?
A. I, 3
B. 2, 2
C. 3, 1
D. 4, 0
E. 0, 4
In higher pair, the relative motion is_____________________?
A. purely turning
B. purely sliding
C. purely rotary
D. purely surface contact
E. combination of sliding and turning
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
E. none of the above
The example of rolling pair is________________?
A. bolt and nut
B. lead screw of a lathe
C. ball and socket joint
D. ball bearing and roller bearing
E. all of the above
Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts__________________?
A. theory of machines
B. applied mechanics
C. mechanisms
D. kinetics
E. kinematics
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