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31.

Principle of superposition is applicable when                        
A. deflections are linear functions of applied forces B. material obeys Hooke's law
C. the action of applied forces will be affected by small deformations of the structure D. none of the above



32.

Select the correct statement                        
A. Flexibility matrix is a square symmetrical matrix B. Stiffness matrix is a square symmetrical matrix
C. both (a) and (b) D. none of the above



33.

Study the following statements.
i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy.
ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy.
iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy.
iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy.
The correct answer is                        
A. (i) and (iii) B. (ii) and (iii)
C. (i) and (iv) D. (ii) and (iv)




34.

The carryover factor in a prismatic member whose far end is fixed is                        
A. 0 B. 2-Jan
C. 4-Mar D. 1



35.

The Castigliano's second theorem can be used to compute deflections                        
A. in statically determinate structures only B. for any type of structure
C. at the point under the load only D. for beams and frames only



36.

The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in                        
A. vertical direction B. horizontal direction
C. inclined direction D. the direction in which the deflection is required



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