Theory of Structures If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 × 105 N/mm²) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm 2, the angle of twist in radians, is 0.002 0.001 0.003 0.0025 0.002 0.001 0.003 0.0025 ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good E = 2N (1 + 1/m) E = 3K (1 – 2/m) All of these (3/2)K (1 – 2/m) = N (1 + 1/m) E = 2N (1 + 1/m) E = 3K (1 – 2/m) All of these (3/2)K (1 – 2/m) = N (1 + 1/m) ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The locus of reaction of a two hinged semi-circular arch, is Circle Straight line Parabola Hyperbola Circle Straight line Parabola Hyperbola ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is 120 N/mm² 100 N/mm 2 80 N/mm² 150 N/mm² 120 N/mm² 100 N/mm 2 80 N/mm² 150 N/mm² ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures Total strain energy theory for the failure of a material at elastic limit, is known Guest’s or Trecas’ theory Haig’s theory Rankine’s theory St. Venant’s theory Guest’s or Trecas’ theory Haig’s theory Rankine’s theory St. Venant’s theory ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures At yield point of a test piece, the material Undergoes plastic deformation Regains its original shape on removal of the load Obeys Hooke’s law Behaves in an elastic manner Undergoes plastic deformation Regains its original shape on removal of the load Obeys Hooke’s law Behaves in an elastic manner ANSWER DOWNLOAD EXAMIANS APP
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