A. incompletely constrained motion
B. partially constrained motion
C. completely constrained motion
D. successfully constrained motion
E. none of the above
Theory of Machines
Governor is used in automobile to_______________?
A. decrease the variation of speed
B. to control
C. to control SN
D. all of the above
E. none of the above
The magnitude of tangential acceleration is equal to____________________?
A. velocity2 x crank radius
B. velocityvcrankradius
C. (velocity/crankradius)
D. velocity x crank radius2
E. none of the above
Which of the following is a lower pair_______________?
A. ball and socket i
B. piston and cylinder
C. cam and follower
D. A. and B. above
E. belt drive
The Ackermann steering mechanism is preferred to the Davis type in automobiles because____________________?
A. the former is mathematically accurate
B. the former is having turning pair
C. the former is most economical
D. the former is most rigid
E. none of thfr above
If two moving elements have surface contact in motion, such pair is known as_________________?
A. sliding pair
B. rolling pair
C. surface pair
D. lower pair
E. higher pair
The approximate straight line mechanism is a____________________?
A. four bar linkage
B. 6 bar linkage
C. 8 bar linkage
D. 3 bar linkage
E. 5 bar linkage
The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be________________?
A. 0, and more than co2r
B. 0, and less than coV
C. 0, 0
D. cor, 0
E. none of the above
Lower pairs are those which have___________________?
A. point or line contact between the two elements when in motion
B. surface contact between the two elements when in motion
C. elements of pairs not -held together mechanically
D. two elements that permit relative motion
E. none of the above
Peaucellier mechanism has__________________?
A. eight links
B. six links
C. four links
D. twelve links
E. five links
