Balancing of rotating and reciprocating parts of an engine is necessary when it runs at

A. Slow speed

B. Moderate speed

C. Highs peed

D. Any one of these

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

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  1. In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and…
  2. The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass.…
  3. Any point on a link connecting double slider crank chain will trace a
  4. The primary unbalanced force is maximum _________ in one revolution of the crank.
  5. The example of higher pair is
  6. In order to double the period of a simple pendulum, the length of the string should be
  7. The type of gears used to connect two non parallel and non intersecting shafts is
  8. The size of a gear is usually specified by
  9. The brake commonly used in railway trains is
  10. In a kinematic chain, a quaternary joint is equivalent to
  11. If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for…
  12. For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of…
  13. In a gear having involute teeth, the normal to the involute is a tangent to the
  14. Which of the following is an example of sliding pair?
  15. In a single slider crank chain
  16. The velocity of a body moving with simple harmonic motion is __________ at the mean position.
  17. The frequency of oscillation of a compound pendulum is
  18. The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing…
  19. The angle of inclination of the plane, at which the body begins to move down the plane is called
  20. Which of the following is false statement in respect of differences between machine and structure?
  21. Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel,…
  22. The steering of a ship means
  23. A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation…
  24. Which of the following would constitute a link?
  25. Which of the following is a turning pair?
  26. In a hydrodynamic journal bearing, there is
  27. The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt)…
  28. What is the number of instantaneous centres for an eight link mechanism?
  29. Oldhams coupling is an inversion of the kinematic chain used in
  30. Frequency of vibrations is usually expressed in