The moment on the pulley which produces rotation is called ___________________?

Related Mcqs:

1. Pulley in a belt drive acts as_______________?

   A. cylindrical pair
   B. turning pair
   C. rolling pair
   D. sliding pair
   E. surface pair

2. 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

3. The absolute acceleration of any point P in a link about center of rotation 0 is___________________?

   A. along PO
   B. perpendicular to PO
   C. at 45° to PO
   D. along OP
   E. none of the above

4. Instantaneous center of rotation of a link in a four bar mechanism lies on _______________?

   A. right side pivot of this link
   B. lift side pivot of this link
   C. a point obtained by intersection on extending adjoining links
   D. can’t occur
   E. none of the above

5. 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

6. Polar moment of inertia (IP) of ac disc is to ht determined by suspen by a wire and noting the frequei oscillations (f) ?

   A. Ipocf
   B. Ipocf
   C. Ip oc j
   D. Ipoc-
   E. none of the above

7. Which of the following mechanisms produces mathematically an exact straight line motion____________________?

   A. Grasshopper mechanism
   B. Watt mechanism
   C. Peaucellier’s mechanism
   D. Tchabichiff mechanism
   E. Ackermann mechanism

8. Elements of pairs held together mechanically is known as ___________________?

   A. closed pair
   B. open pair
   C. mechanical pair
   D. rolling pair
   E. none of the above

9. The number of links and instantaneous centers in a reciprocating engine mechanism are ___________________?

   A. 4, 4
   B. 4, 5
   C. 5, 4
   D. 6, 4
   E. 4, 6

10. A circular bar moving in a round hole is an example of_______________?

    A. incompletely constrained motion
    B. partially constrained motion
    C. completely constrained motion
    D. successfully constrained motion
    E. none of the above