Home

The factional torque for square thread at the mean radius r while raising load W is given by

A. T = W.r tan(φ - α)

B. T = W.r tan(φ + α)

C. T = W.r tanα

D. T = W.r tanφ

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

You can do it
  1. The velocity of a body moving with simple harmonic motion is __________ at the mean position.
  2. A shaft carrying two rotors at its ends will have
  3. A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration…
  4. A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the…
  5. Kinematic pairs are those which have two elements that
  6. In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be
  7. The periodic time of a compound pendulum is __________ when the distance between the point of suspension…
  8. Two pulleys of radii r₁ and r₂ and at distance x apart are connected by means of a cross…
  9. The D-slide valve is also known as
  10. The example of completely constrained motion is a
  11. The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane…
  12. The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's…
  13. A kinematic chain is known as a mechanism when
  14. For the same lift and same angle of ascent, a smaller base circle will give
  15. The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given…
  16. When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of…
  17. The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel,…
  18. A Hartnell governor is a
  19. In a rigid link OA, velocity of A w.r.t. O will be
  20. Which of the following is an open pair?
  21. When the nature of contact between the elements of a pair is such that one element can turn about the…
  22. When a point moves along a straight line, its acceleration will have
  23. In order to give a complete secondary balance of a multi-cylinder inline engine,
  24. The direction of linear velocity of any point on a link with respect to another point on the same link…
  25. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve…
  26. When a point at the end of a link moves with constant angular velocity, its acceleration will have
  27. Which of the following property of the instantaneous centre is correct?
  28. The steering of a ship means
  29. In a single slider crank chain
  30. Which of the following is an open pair?