If in a pin-jointed plane frame (m + r) > 2j, then the frame is

Principle of superposition is applicable when

The Castigliano’s second theorem can be used to compute deflections

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

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

When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would

Which of the following methods of structural analysis is a force method?

Which of the following is not the displacement method?

For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust

The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in

The principle of virtual work can be applied to elastic system by considering the virtual work of

If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is

The three moments equation is applicable only when

Which of the following methods of structural analysis is a displacement method?

The fixed support in a real beam becomes in the conjugate beam a

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

To generate the jth column of the flexibility matrix

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

In the displacement method of structural analysis, the basic unknowns are

A rigid-jointed plane frame is stable and statically determinate if

In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always

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

The width of the analogous column in the method of column analogy is

Muller Breslau’s principle for obtaining influence lines is applicable to
(i)      Trusses
(ii)      Statically determinate beams and frames
(iii)       Statically indeterminate structures, the material of which is elastic and follows Hooke’s law
(iv)       Any statically indeterminate structure The correct answer is

In column analogy method, the area of an analogous column for a fixed beam of span ‘1/ and flexural rigidity ‘E/’ is taken as

The degree of static indeterminacy of a rigid-jointed space frame is

Degree of kinematic indeterminacy of a pin-jointed plane frame is given by

The number of independent equations to be satisfied for static equilibrium of a plane structure is

The degree of static indeterminacy of a pin-jointed space frame is given by (Where’m’ is number of unknown member forces, V is unknown reaction components and j is number of joints)

While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

Select the correct statement

For a single point load ‘W moving on a symmetrical three hinged parabolic arch of span T, the maximum sagging moment occurs at a distance V from ends. The value of V is

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

Bending moment at any section in a conjugate beam gives in the actual beam

The number of independent displacement components at each joint of a rigid-jointed space frame is

Independent displacement components at each joint of a rigid-jointed plane frame are

If there are’m’ unknown member forces, V unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by

The carryover factor in a prismatic member whose far end is fixed is

Effects of shear force and axial force on plastic moment capacity of a structure are respectively to

The degree of kinematic indeterminacy of a pin-jointed space frame is

The maximum bending moment due to a train of wheel loads on a simply supported girder

Consider the following statements:
Sinking of an intermediate support of a continuous beam
1.       Reduces the negative moment at support.
2.       Increases the negative moment at support.
3.       Reduces the positive moment at support.
4.       Increases the positive moment at the centre of span.
Of these statements

When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when

Castigliano’s first theorem is applicable

Number of unknown internal forces in each member of a rigid jointed plane frame is

The number of independent equations to be satisfied for static equilibrium in a space structure is

A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre?

A pin-jointed plane frame is unstable if

Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is

The degree of static indeterminacy up to which column analogy method can be used is

In the slope deflection equations, the deformations are considered to be caused by
(i)      Bending moment
(ii)       Shear force
(iii)       Axial force
The correct answer is

A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be

The deformation of a spring produced by a unit load is called