In above example, the minimum length of the coupler will be__________________?

Related Mcqs:

1. In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is________________________?

   A. 95 mm
   B. slightly less than 95 mm
   C. slightly more than 95 mm
   D. 45 mm
   E. none of the above

2. The lower pair is a_____________________?

   A. open pair
   B. closed pair
   C. sliding pair
   D. point contact pair
   E. does not exist

3. Sense of tangential acceleration of a link_________________?

   A. is same as that of velocity
   B. is opposite to that of velocity
   C. could be either same or opposite to velocity
   D. is perpendicular to that of velocity
   E. none of the above

4. The purpose of a link is to________________?

   A. transmit motion
   B. guide other links
   C. act as a support
   D. all of the above
   E. none of the above

5. 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°.

6. In multi-V-belt transmission, if one of the belt is broken, we have to change the_________________?

   A. broken belt
   B. broken belt and its adjacent belts
   C. all the belts
   D. there is no need of changing any one as remaining belts can take care of transmission of load
   E. all the weak belts

7. 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

8. Cam angle 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 can from beginning of i ascent to the termination of descent

9. The number of centers in a crank driven slider crank mechanism are_______________?

   A. 0
   B. 2
   C. 4
   D. 6
   E. may be any number depending upon position of mechanism

10. The main disadvantage of the sliding pair is that it is_________________?

    A. bulky
    B. wears rapidly
    C. difficult to manufacture
    D. A. and B. above
    E. A. and C. above