mechanical-engineering-strength-of-materials Related Question Answers

51. When a thin cylindrical shell is subjected to an internal pressure, there will be





52. A welded joint as compared to a riveted joint has __________ strength.




53. The shear force at apoint on a beam is the algebraic __________ of all the forces on either side of the point.



54. The point of contraflexure occurs in





55. For a 25 mm hole drilled in plates, the diameter of rivet shank should be





56. A beam of uniform strength has





57. The shear force of a simply supported beam carrying a central point load changes sign at its midpoint.



58. In a simple bending theory, one of the assumption is that the material of the beam is isotropic. This assumption means that the





59. That book abounds ......... mistakes .?





60. The extremeties of any diameter on Mohr's circle represent





61. Amino acids are the building blocks of?





62. Two shafts 'A' and 'B' are made of same material. The shaft 'A' is solid and has diameter D. The shaft 'B' is hollow with outer diameter D and inner diameter D/2. The strength of hollow shaft in torsion is __________ as that of solid shaft.





63. The bending moment of a cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is __________ at the fixed end.





64. In the below figure, the stress corresponding to point D is





65. The Poisson's ratio for cast iron varies from





66. The Rankine's theory for active earth pressure is based on the assumption that





67. The strain energy stored in a spring, when subjected to maximum load, without suffering permanent distortion, is known as





68. An overhanging beam must overhang on both sides.



69. The resultant stress on an inclined plane which is inclined at an angle θ to the normal cross-section of a body which is subjected to a direct tensile stress (σ) in one plane, is





70. The ratio of change in volume to the original volume is called




71. In a beam where shear force changes sign, the bending moment will be





72. The maximum shear stress of a beam of triangular section occurs above the neutral axis,



73. For the beam shown in the below figure, the shear force at A is equal to





74. The ductility of a material __________ with the increase in percentage reduction in area of a specimen under tensile test.




75. The rivets are made from ductile material.



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