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
Related Mcqs:
- Rectilinear motion of piston is converted into rotary by_______________?
A. cross head
B. slider crank
C. connecting rod
D. gudgeon pin
E. four bar chain mechanism - 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 - 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 - Automobile steering gear is an example of____________________?
A. higher pair
B. sliding pair
C. turning pair
D. rotary pair
E. lower pair - With single Hooke’s joint it is possible to connect two shafts, the axes of which have an angular misalignment up to ________________?
A. 10°
B. 20°
C. 30°
D. 40°
E. 60°. - Idler pulley is used___________________?
A. for changing the direction of motion of the belt
B. for applying tension
C. for increasing -velocity ratio
D. all of the above
E. none of the above - Which is the false statement about the properties of instantaneous center____________________?
A. at the instantaneous center of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered
B. the two rigid links have no linear velocities relative to each other at the instantaneous centre
C. the two rigid links which have no linear velocity relative to each other at this center have the same linear velocity to the third rigid link
D. the double centre can be denoted either by 02 or Ol2, but proper selection should be made
E. none of the above - Angle of action 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 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 beginning of ascent to the termination of descent - According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centers lie on___________________?
A. a triangle
B. a point
C. two lines
D. a straight line
E. a curve - Hart mechanism has________________?
A. eight links
B. six links
C. four links
D. twelve links
E. five links
