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The cross-section of the arm of a bell crank lever is

A. Rectangular

B. Elliptical

C. I-section

D. Any one of these

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

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  1. When screw threads are to be used in a situation where power is being transmitted in one direction only,…
  2. The yield point in static loading is __________ as compared to fatigue loading.
  3. The shear stress in a beam varies from zero at the outer fibres to a maximum at the________.
  4. The crest diameter of a screw thread is same as
  5. When the screw in a mechanical screw jack rotates, the load kept on the top of it moves
  6. If a material fails below its yield point, failure would be due to
  7. A column is known as a long column if the slenderness ratio is
  8. Which of the following formula is used in designing a connecting rod?
  9. The centrifugal tension in belts
  10. In thrust bearings, the load acts
  11. A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal…
  12. 18/8 steel contains
  13. A sliding bearing which can support steady loads without any relative motion between the journal and…
  14. The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and…
  15. Which of the following statement is correct?
  16. Which of the following statement is correct for gears?
  17. In a full journal bearing, the angle of contact of the bearing with the journal is
  18. A type of brake commonly used in motor cars is a
  19. When spring index increases, the value of Wahl's stress factor
  20. When the fulcrum is in between the load and effort, the lever is said to be of
  21. Wahl's stress factor __________ very rapidly as the spring index decreases.
  22. The taper on cotter varies from
  23. Tensile strength of a mild steel specimen can be roughly predicted from following hardness test
  24. The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure…
  25. A hot short metal is
  26. In levers, leverage is the ratio of
  27. For a square key made of mild steel, the shear and crushing strength are related as
  28. The taper on key is given on
  29. A single strap butt joint is always in __________ shear.
  30. Which of the following cotter joint will be used to connect strap end of a connecting rod?