Which one of the following can completely balance several masses revolving in different planes on a shaft?

A. A single mass in different planes

B. Two masses in any two planes

C. A single mass in one of the planes of the revolving masses

D. Two equal masses in any two planes

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The ratio of maximum fluctuation of energy to the workdone per cycle is called
  2. Which of the following mechanism is an approximate straight line motion mechanism?
  3. The Hooke's joint consists of:
  4. The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity…
  5. A spring controlled governor is said to be isochronous when the controlling force
  6. In automobiles the power is transmitted from gear box to differential through
  7. The frictional torque transmitted in a conical pivot bearing, considering uniform wear, is
  8. The example of lower pair is
  9. ________ is an inversion of Double slider crank chain.
  10. It is required to connect two parallel shafts, the distance between whose axes is small and variable.…
  11. A mechanism consisting of four links is called a __________ mechanism.
  12. The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke…
  13. The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon…
  14. A foot step bearing and rotor of a vertical turbine form examples of
  15. If some links are connected such that motion between them can take place in more than one direction,…
  16. In vibration isolation system, the transmissibility will be equal to unity, for all values of damping…
  17. Idler pulley is used
  18. The secondary unbalanced force is maximum __________ in one revolution of the crank.
  19. The lower pair is a
  20. The velocity of the belt for maximum power is (where m = Mass of the belt in kg per metre length)
  21. When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in…
  22. When a slider moves on a fixed link having curved surface, their instantaneous centre lies
  23. In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient…
  24. The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is
  25. A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism…
  26. In a screw jack, the effort required to lower the load W is given by
  27. The gear train usually employed in clocks is a
  28. In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted…
  29. A pantograph is a mechanism with
  30. A spring controlled governor is found unstable. It can be made stable by