Hiried Structural Analysis Multiple choice Questions and Answers pdf

31.    A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be
a)    8 kN.m
b)    15 kN.m
c)    30 kN.m
d)    60 kN.m
Ans: c

32.    The maximum bending moment due to a train of wheel loads on a simply supported girder
a)    always occurs at center of span
b)    always occurs under a wheel load
c)    never occurs under a wheel load
d)    none of the above
 Ans: b

33.    When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies
a)    less than the left half span
b)    whole of left half span
c)    more than the left half span
d)    whole span
Ans: d

34.    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
a)    the head of the load reaches the section
b)    the tail of the load reaches the section
c)    the load position should be such that the section divides it equally on both sides
d)    the load position should be such that the section divides the load in the same ratio as it divides the span
Ans: d

35.    When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel
load occurs when
a)    the center of gravity of the load system is midway between the center of span and wheel load under consduration
b)    the center of span is midway between the center of gravity of the load system and the wheel load under consideration
c)    the wheel load under consideration is midway between the center of span and the center of gravity of the load system
d)    none of the above
Ans: b

36.    Which of the following is not the displacement method ?
a)    Equilibrium method
b)    Column analogy method
c)    Moment distribution method
d)    Kani's method
Ans: b

37.     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)
Ans: d

38.    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
Ans: c

39.    To generate the j th column of the flexibility matrix
a)    a unit force is applied at coordinate j and the displacements are calculated at all coordinates
b)    a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
c)    a unit force is applied at coordinate j and the forces are calculated at all coordinates
d)    a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
Ans: a

40.    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
a)    (i) and (iii)
b)    (ii) and (iii)
c)    (i) and (iv)
d)    (ii) and (iv)
Ans: a

Read More Questions:
Structural Analysis MCQs Part1
Structural Analysis MCQs Part2
Structural Analysis MCQs Part3
Structural Analysis MCQs Part4
Structural Analysis MCQs Part5

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