In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed_______________?

Related Mcqs:

1. Governor is used in automobile to_______________?

   A. decrease the variation of speed
   B. to control
   C. to control SN
   D. all of the above
   E. none of the above

2. If D1 and D2 be the diameters of driver and driven pulleys, then belt speed is proportional to__________________?

   A. D1/D2
   B. D2/D1
   C. D1-D2.
   D. D1
   E. D1+D2

3. Shaft revolving in a bearing is the following type of pair________________?

   A. lower pair
   B. higher pair
   C. spherical pair,
   D. cylindrical pair
   E. bearing pair

4. Rectangular bar in a rectangular hole is the following type of pair__________________?

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

5. A cam with a roller follower would con stitute following type of pair______________?

   A. lower pair
   B. higher pair
   C. open pair
   D. close pair
   E. cam pair

6. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as__________________?

   A. turning pair
   B. rolling pair
   C. sliding pair
   D. spherical pair
   E. lower pair

7. The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel, but intersect is______________________?

   A. flexible coupling
   B. universal coupling
   C. chain coupling
   D. Oldham’s coupling
   E. American coupling

8. The Ackermann steering mechanism is preferred to the Davis type in automobiles because____________________?

   A. the former is mathematically accurate
   B. the former is having turning pair
   C. the former is most economical
   D. the former is most rigid
   E. none of thfr above

9. A slider crank chain consists of following numbers of turning and sliding pairs_________________?

   A. I, 3
   B. 2, 2
   C. 3, 1
   D. 4, 0
   E. 0, 4

10. Which of the following is false statement in respect of differences between machine and structure___________________?

    A. Machines transmit mechanical work, whereas structures transmit forces
    B. In machines, relative motion exists be-tween its members, whereas same does hot exist in case of structures
    C. Machines modify movement and work, whereas structures modify forces
    D. Efficiency of machines as well as structures is below 100%
    E. Machines are run by electric motors, but structures are not