For a kinematic chain to be considered as mechanism___________________?

Related Mcqs:

1. A chain comprises of 5 links having 5 joints. Is it kinematic chain ?

   A. yes
   B. no
   C. it is a marginal case
   D. data are insufficient to determine it
   E. unpredictable

2. A kinematic chain requires at least________________________?

   A. 2 links and 3 turning pairs
   B. 3 links and 4 turning pairs
   C. 4 links and 4 turning pairs
   D. 5 links and 4 turning pairs
   E. none of the above

3. In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links_________________?

   A. will remain same
   B. will change
   C. could change or remain unaltered depending oh which link is fixed
   D. will not occur
   E. none of the above

4. Kinematic pairs are those which have two elements that ______________?

   A. have line contact
   B. have surface contact
   C. permit relative motion
   D. are held together
   E. have dynamic forces

5. Kinematic pairs are those which have__________________?

   A. point or line contact between the two elements when in motion
   B. surface contact between the two ele-ments when in motion
   C. elements of pairs not held together mechanically
   D. two elements that permit relative mo-tion
   E. none of the above

6. Kinematic pairs are those which have___________________?

   A. two elements held together mechani-cally
   B. two elements having relative motion
   C. two elements having Coroili’s com-ponent
   D. minimum of two instantaneous centres
   E. all of the above

7. Any point on a link connecting double slider crank chain will trace a ________________?

   A. straight line
   B. circle
   C. ellipse
   D. parabola
   E. hyperbola

8. A point on a link connecting double slider crank chain traces a____________________?

   A. straight line
   B. circle
   C. parabola
   D. hyperbola
   E. ellipse

9. 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

10. 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