1.When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that

2.For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust

3.For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal i) of a stiffness matrix must be positive ii) of a stiffness matrix must be negative iii) of a flexibility matrix must be positive iv) of a flexibility matrix must be negative The correct answer is

4.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

5.Consider the following statements: Sinking of an intermediate support of a continuous beam # reduces the negative moment at support. # increases the negative moment at support. # reduces the positive moment at support. # increases the positive moment at the center of span. Of these statements