A. quick return mechanism of shaper
B. four bar chain mechanism
C. slider crank mechanism
D. A. and C. above
E. all of the above.
Related Mcqs:
- The direction of Corioli’s component of acceleration is the direction _____________________?
A. of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link
B. along the centripetal acceleration
C. along tangential acceleration
D. along perpendicular to angular velocity
E. none of the above. - 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 - The sense of Corioli’s component is such that it_________________?
A. leads the sliding velocity vector by 90°
B. lags the sliding velocity vector by 90°
C. is along the sliding velocity vector
D. leads the sliding velocity vector by 180°
E. none of the above - In a shaper mechanism, the Corioli’s component of acceleration will_______________?
A. not exist
B. exist
C. depend on position of crank
D. unpredictable
E. none of the above - Corioli’s component of acceleration exists whenever a point moves along a path that has________________?
A. linear displacement
B. rotational motion
C. tangential acceleration
D. centripetal acceleration
E. none of the above - Which of the following would constitute a link__________________?
A. piston, piston rings and gudgeon pin
B. piston, and piston rod
C. piston rod and cross head
D. piston, crank pin and crank shaft
E. piston, piston-rod and cross head - The advantage of the piston valve over D-slide valve is that in the former case____________________?
A. wear is less
B. power absorbed is less
C. both wear and power absorbed are low
D. the pressure developed being high provides tight sealing
E. there is overall economy of initial cost, maintenance and operation - A point on a link connecting double slider crank chain traces a____________________?
A. straight line
B. circle
C. parabola
D. hyperbola
E. ellipse - Angle of ascent of cam is defined as the angle___________________?
A. during which the follower returns to its initial position
B. of rotation of the cam for a definite displacement of the follower
C. through which the cam rotates during the period in which the follower remains in 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 beginning oi ascent to the termination of descent - An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has___________________?
A. 2 links
B. 3 links
C. 4 links
D. 5 links
E. none of the above
