Theory of Structures A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm²), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is 35 N 30 N 40 N 25 N 35 N 30 N 40 N 25 N ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The stiffness of the close coil helical spring is 8D3N/d4n d4N/4D3n d4N/8D3n 4D3N/d4n 8D3N/d4n d4N/4D3n d4N/8D3n 4D3N/d4n 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 = 3K (1 – 2/m) All of these E = 2N (1 + 1/m) (3/2)K (1 – 2/m) = N (1 + 1/m) E = 3K (1 – 2/m) All of these E = 2N (1 + 1/m) (3/2)K (1 – 2/m) = N (1 + 1/m) ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The point of contraflexure is the point where M. changes sign S.F. is zero M. is minimum M. is maximum M. changes sign S.F. is zero M. is minimum M. is maximum ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures Pick up the correct statement from the following: If tensile stress is equal to axial stress, the section experiences compressive stress All of these If tensile stress is less than axial stress, the section experiences compressive stress The moment of inertia is calculated about the axis about which bending takes place If tensile stress is equal to axial stress, the section experiences compressive stress All of these If tensile stress is less than axial stress, the section experiences compressive stress The moment of inertia is calculated about the axis about which bending takes place ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures Inertia of a rectangular section of width and depth about an axis passing the moment of through C.G. and parallel to its width is BD³/6 BD³/12 BD²/6 B²D/6 BD³/6 BD³/12 BD²/6 B²D/6 ANSWER DOWNLOAD EXAMIANS APP
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