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