Theory of Structures A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is 4W²Dn/d4N 4W²D3n²/d4N 4WD²n/d4N 4W²D3n/d4N 4W²Dn/d4N 4W²D3n²/d4N 4WD²n/d4N 4W²D3n/d4N ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is L/3 L/4 L/5 L/2 L/3 L/4 L/5 L/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is 3F/2A F/A 2F/3A F/2A 3F/2A F/A 2F/3A F/2A ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The point of contraflexure is the point where M. is maximum M. is minimum S.F. is zero M. changes sign M. is maximum M. is minimum S.F. is zero M. changes sign ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures The load on a spring per unit deflection, is called Proof load Stiffness Proof stress Proof resilience Proof load Stiffness Proof stress Proof resilience ANSWER DOWNLOAD EXAMIANS APP
Theory of Structures A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber). BD² + mbd²)/6D] BD² + mbd³)/4D] BD³ + mbd³)/6D] BD² + mbd²)/4D] BD² + mbd²)/6D] BD² + mbd³)/4D] BD³ + mbd³)/6D] BD² + mbd²)/4D] ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS