Home

Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is

A. (l₁ + l₂ + l₃)/3

B. l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³

C. l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴

D. l₁ + l₂ + l₃

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

You can do it
  1. Klein's construction can be used when
  2. The relation between number of links (l) and number of joints (j) in a kinematic chain is
  3. Torsional vibrations are said to occur when the particles of a body moves
  4. A watt's governor can work satisfactorily at speeds from
  5. If two moving elements have surface contact in motion, such pair is known as
  6. The instantaneous centre of a rigid thin disc rolling on a plane rigid surface is located at
  7. Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel,…
  8. Power of a governor is the
  9. The Coriolis component of acceleration acts
  10. Which gear train is used for higher velocity ratios in a small space?
  11. The frequency of oscillation of a compound pendulum is
  12. In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted…
  13. If the opposite links of a four bar linkage are equal, the links will always form a
  14. One end of a helical spring is fixed while the other end carries the load W which moves with simple…
  15. The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω…
  16. The maximum fluctuation of speed is the
  17. A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________…
  18. Klein's construction is useful to determine
  19. In railway axle boxes, the bearing used is
  20. Which of the following is an inversion of a double slider crank chain?
  21. Which of the following disciplines provides study of the relative motion between the parts of a machine…
  22. If the damping factor for a vibrating system is unity, then the system will be
  23. If the pressure angle is __________, a reciprocating follower will jam in its bearings.
  24. Whirling speed of the shaft is the speed at which
  25. The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may…
  26. In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and…
  27. A spring controlled governor is said to be unstable when the controlling force
  28. In gramophones for adjusting the speed of the turntable, the following type of governor is commonly…
  29. Kinematic pairs are those which have
  30. When the sleeve of a Porter governor moves downwards, the governor speed