6) Castigliano's first theorem is applicable: For statically determinate structures only. 2. When the system behaves...

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6) Castigliano's first theorem is applicable: For statically determinate structures only. 2. When the system behaves beyond the elastic limit. 3.Only when principle of superposition is valid. 7) A single moving load of 8kN along a girder of 15m span. The Influa absolute maximum bending moment will be: line 1.8 kN.m 2.15 kN.m 3.30 kN.m 460 kN.m 8) The flexibility matrix is a 1.Square non-symmetrical matrix. 2.Square symmetrical matrix. 3.Square symmetrical matrix with zero diagonal elements. 9) For stable structures, the diagonal elements of the flexibility & stiffness matrices are: i. For stiffness matrix must be positive. ii. For stiffness matrix must be negative. iii. For flexibility matrix must be positive. iv. For flexibility matrix must be negative. 6) Castigliano's first theorem is applicable: For statically determinate structures only. 2. When the system behaves beyond the elastic limit. 3.Only when principle of superposition is valid. 7) A single moving load of 8kN along a girder of 15m span. The Influa absolute maximum bending moment will be: line 1.8 kN.m 2.15 kN.m 3.30 kN.m 460 kN.m 8) The flexibility matrix is a 1.Square non-symmetrical matrix. 2.Square symmetrical matrix. 3.Square symmetrical matrix with zero diagonal elements. 9) For stable structures, the diagonal elements of the flexibility & stiffness matrices are: i. For stiffness matrix must be positive. ii. For stiffness matrix must be negative. iii. For flexibility matrix must be positive. iv. For flexibility matrix must be negative.

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ZANS 6 3 ONLY WHEN PRINCIPLE OF SUPERPOSITION IS VALID CASTIGLANDS FIRST THEOREM IS ... View the full answer