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Crowning on pulley helps

A. In decreasing the slip of the belt

B. In increasing the slip of the belt

C. To keep the belt in centre on a pulley while it is in motion

D. To increase pulley life

Correct Answer : C.


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  2. The design calculations for members subject to fluctuating loads with the same factor of safety, yield…
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  5. The material used for brake lining should have __________ coefficient of friction.
  6. Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected…
  7. The piston rod of a steam engine is usually connected to the crosshead by means of
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  9. In hydrodynamic bearings
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  11. A crankshaft is a __________ shaft.
  12. In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)
  13. A localised compressive stress at the area of contact between two members is known as
  14. A stud
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  16. Whether any core is required in wire ropes
  17. The ball bearings are provided with a cage
  18. The ratio of driving tensions in V-belt drives is __________ flat belt drives.
  19. The bending stress in a curved beam is
  20. The pitch diameter is the __________ diameter of an external or internal screw thread.
  21. The square threads are usually found on
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  23. Two shafts A and B under pure torsion are of identical length and identical weight and are made of the…
  24. Which is correct statement? Stress concentration in cyclic loading is
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  27. The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of…
  28. Which of the following property is essential for spring materials?
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