mechanical-engineering-machine-design Related Question Answers

26. When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the

27. In order to obtain the bolts of uniform strength, an axial hole is drilled through the head as far as the threaded portion such that the area of shank becomes equal to the root area of the thread.

28. An open belt drive is used when

29. In unilateral system of tolerance, the tolerance is allowed on

30. The constant factor in case of R10 series of preferred numbers is

31. The pipe joint mostly used for pipes carrying water at low pressures is

32. According to Guest's theory, the failure occurs at a point in a member when the maximum shear stress in a bi-axial stress system reaches the shear stress at elastic limit in simple tension test.

33. For maximum power, the velocity of the belt will be

34. Surface endurance limit of gear material is dependent upon its

35. In a hydrodynamic lubricated bearing

36. Which of the following statement is correct for gears?

37. A flanged pipe joint will be a leak-proof joint, if the circumferential pitch of the bolts is (where d = Diameter of bolt hole)

38. Stress concentration is caused due to

39. The resistance to fatigue of a material is measured by

40. The load cup of a screw jack is made separate from the head of the spindle to

41. Two shafts A and B under pure torsion are of identical length and identical weight and are made of the same material. The shaft A is solid and the shaft B is hollow. We can say that

42. The famous book ‘Resurrection’ is written by?

43. In a flange coupling, the thickness of flanges is taken as one-half the diameter of shaft.

44. The rolling contact bearings are known as

45. The backlash for spur gears depends upon

46. The size of a gear is usually specified by

47. The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

48. The bearings of heavy series have capacity __________ over the medium series.

49. A steel containing more than 0.8% carbon is known as eutectoid steel.

50. In leaf springs, the longest leaf is known as

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