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The pitch diameter is the __________ diameter of an external or internal screw thread.

A. Effective

B. Smallest

C. Largest

D. None of these

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

You can do it
  1. Resistance to fatigue of a material is measured by
  2. Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected…
  3. The included angle in unified of American National threads is
  4. For general industrial machinery, the ratio of the length of journal to its diameter is taken as
  5. In radial cams, the follower moves
  6. Two shafts will have equal strength, if
  7. Stress concentration in cyclic loading is more serious in
  8. The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical…
  9. The function of a washer is to
  10. The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover…
  11. The piston rod of a steam engine is usually connected to the crosshead by means of
  12. Which of the following is not correct procedure to increase the fatigue limit?
  13. The wire ropes make contact at
  14. Rankine's theory is used for
  15. If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, then…
  16. The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.
  17. A V-belt designated as B 4430 LP has
  18. For longitudinal joint in boilers, the type of joint used is
  19. In most machine members, the damping capacity of the material should be
  20. A screw is said to be over hauling screw, if the
  21. The shear stress in a beam varies from zero at the outer fibres to a maximum at the________.
  22. A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as
  23. A single strap butt joint is always in __________ shear.
  24. In order to determine the stresses in a thin cylinder due to an internal pressure, it is assumed that
  25. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
  26. While designing a screw in a screw jack against buckling failure, the end conditions for the screw are…
  27. The smallest diameter of an external or internal screw thread is known as
  28. A crankshaft is a __________ shaft.
  29. Shear stress theory is applicable for
  30. Which of the following pipe joints would be suitable for pipes carrying steam?