The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ are equal to 6/(6 + v).

A. 10 m/s

B. 12.5 m/s

C. 15 m/s

D. 20 m/s

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

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  1. Oldham coupling is used to connect two shafts
  2. Wahl's stress factor __________ very rapidly as the spring index decreases.
  3. The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.
  4. The included angle for the British Association thread is
  5. Rankine Gordon formula for buckling is valid for
  6. The spring mostly used in gramophones is
  7. In the levers of first type, the mechanical advantage is __________ one.
  8. Which one of the following is a positive drive?
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  10. The bearings of heavy series have capacity ________ over the medium series.
  11. The notch angle of the Izod impact test specimen is
  12. A connecting rod should be
  13. When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile…
  14. A connecting rod subjected to an axial load may buckle with
  15. The creep in the belt is due to
  16. According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width…
  17. The suitable material for belt in agricultural machinery is
  18. When two springs are in series (having stiffness K), the equivalent stiffness will be
  19. When two helical springs of equal lengths are arranged to form a cluster spring, then
  20. A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called
  21. The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called
  22. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
  23. In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known…
  24. The property of a material which enables it to be drawn into wires with the application of a tensile…
  25. The cam follower extensively used in aircraft engines is
  26. The condition for maximum power transmission is that the maximum tension in the flat belt should be…
  27. A tube has the following advantage over pipe
  28. In designing a key, it is assumed that the distribution of forces along the length of key
  29. In the levers of third type, the mechanical advantage is __________ one.
  30. Transverse fillet welded joints are designed for