In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

A. Helix angle

B. Pressure angle

C. Pitch lead angle

D. None of these

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

You can do it
  1. The resistance to fatigue of a material is measured by
  2. A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved…
  3. A single strap butt joint is always in __________ shear.
  4. The condition for maximum power transmission is that the maximum tension in the flat belt should be…
  5. The modulus of elasticity for mild steel is approximately equal to
  6. Two shafts will have equal strength, if
  7. I.S. specifies following total number of grades of tolerances
  8. If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and…
  9. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making…
  10. The belt slip occurs due to
  11. The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.
  12. The expression 0.175 - 0.841/T is the Lewis form factor for
  13. Stress concentration is caused due to
  14. When the speed of belt increases,
  15. The ultimate strength of steel in tension in comparison to shear is in the ratio of
  16. A double fillet welded joint with parallel fillet weld of length l and leg s is subjected to a tensile…
  17. The application of third type levers is found in
  18. The form factor of a helical gear __________ with the increase in the helix angle.
  19. The resultant axial load on a bolt depends upon
  20. When an open coiled helical compression spring is subjected to an axial compressive load, the maximum…
  21. In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called
  22. The expansion joint is mostly used for pipes which carry steam at __________ pressures.
  23. The minimum number of teeth on the pinion which will mesh with any gear without interference for 20°…
  24. The constant factor in case of R10 series of preferred numbers is
  25. A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as
  26. The ball bearings are, usually, made from
  27. The temperature required for full annealing in hypereutectoid steel is
  28. The design of pin of a rocker arm of an I.C. engine is based on
  29. Which of the following statement is correct?
  30. When two helical springs of equal lengths are arranged to form a cluster spring, then