To generate the j the 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

Related Mcqs:

In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as__________________?
A. L/EI
B. L/2EI
C. L/3EI
D. L/4EI
The width of the analogous column in the method of column analogy is _________________?
A. 2/EI
B. 1/EI
C. 1/2 EI
D. 1/4 EI
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)
The degree of static indeterminacy up to which column analogy method can be used is__________________?
A. 2
B. 3
C. 4
D. unrestricted
The degree of static indeterminacy of a pin-jointed space frame is given by_________________?
A. m + r – 2j
B. m + r – 3j
C. 3m + r – 3j
D. m + r + 3j
where m is number of unknown member forces, r is unknown reaction components and j is number of joints
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
For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is__________________?
A. 0.211 L
B. 0.25 L
C. 0.234 L
D. 0.5 L
A load ‘W is moving from left to right support on a simply supported beam of span T. The maximum bending moment at 0.4 1 from the left support is___________________?
A. 0.16 Wl
B. 0.20 Wl
C. 0.24 Wl
D. 0.25 Wl
While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of__________________?
A. zero length
B. infinite length
C. zero moment of inertia
D. none of the above
The degree of static indeterminacy of a rigid-jointed space frame is_________________?
A. m + r – 2j
B. m + r – 3j
C. 3m + r – 3j
D. 6m + r – 6j
where m, r and j have their usual meanings