A. along PO
B. perpendicular to PO
C. at 45° to PO
D. along OP
E. none of the above
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
A. compound gears
B. worm and wheel method
C. Hooke’s joint
D. crown gear
E. bevel gears
A. ball bearing
B. roller bearing
C. needle roller bearing
D. thrust bearing
E. sleeve bearing
A. during which the follower returns to its initial position
B. of rotation of the cam for definite dis¬placement of the follower
C. through which the cam rotates during the period in which the follower remains in the highest position
D. moved by the cam from the instant the follower begins to rise, till it reaches its highest position
E. moved by the cam from a beginning of ascent to the termination of descent
A. steering
B. pitching
C. rolling
D. all of the above
E. none of the above
A. lower pair
B. higher pair
C. spherical pair,
D. cylindrical pair
E. bearing pair