CIVIL ENGINEERING STRUCTURAL ANAYSIS MCQ’s

Degree of freedom of a joint for the rigid jointed joint plane frame is

Correct! Wrong!

The Number of degree of freedom of a joint for the rigid jointed plane frame is 3 such as Horizontal sway, Vertical sway, and Rotation

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

Correct! Wrong!

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

Correct! Wrong!

The degree of freedom for the vertical guided roller is

Correct! Wrong!

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

2j + r

3j – r

j – 2r

2j – r

Correct! Wrong!

Castigliano’s first theorem is applicable

for statically determinate structures only

only when principle of superposition is valid

when the system behaves elastically

None of the above

Correct! Wrong!

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

Stable and statically determinate

Stable and statically indeterminate

Unstable

None of the above

Correct! Wrong!

Principle of superposition is applicable when

Deflections are linear functions of applied forces

Material obeys Hooke's law

The action of applied forces will be affected by small deformations of the structure

None of the above

Correct! Wrong!

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

zero

less than 1

greater than 1

Correct! Wrong!

In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as

L/EI

L/2EI

L/3EI

L/4EI

Correct! Wrong!

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

vertical direction

horizontal direction

inclined direction

the direction in which the deflection is required

Correct! Wrong!

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

In statically determinate structures only

For any type of structure

At the point under the load only

For beams and frames only

Correct! Wrong!

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

Less than the left half span

Whole of left half span

More than the left half span

Whole span

Correct! Wrong!

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

Change from compression to tension

Change from tension to compression

Always be compression

Always be tension

Correct! Wrong!

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

Column analogy method

Moment distribution method

None of the above

Correct! Wrong!

The three moments equation is applicable only when

the beam is prismatic

there is no settlement of supports

there is no discontinuity such as hinges within the span

the spans are equal

Correct! Wrong!

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

in statically determinate structures only

for any type of structure

at the point under the load only

for beams and frames only

Correct! Wrong!

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

is increased

is decreased

remains unchanged

becomes zero

Correct! Wrong!

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

8 kN.m

15 kN.m

30 kN.m

60 kN.m

Correct! Wrong!

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

less than the left half span

whole of left half span

more than the left half span

whole span

Correct! Wrong!

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

Stiffness

Flexibility

Influence coefficient

Unit strain

Correct! Wrong!

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

Unrestricted

Correct! Wrong!

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

5 mm

0.5 mm

0.05 mm

0.005 mm

Correct! Wrong!

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

Correct! Wrong!

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

Always occurs at centre of span

Always occurs under a wheel load

Never occurs under a wheel load

None of the above

Correct! Wrong!

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

Increase and decrease

Increase and increase

Decrease and increase

Decrease and decrease

Correct! Wrong!

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

1/2

3/4

Correct! Wrong!

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

Three linear movements

Two linear movements and one rotation

One linear movement and two rotations

Three rotations

Correct! Wrong!

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

Slope

Curvature

Deflection

Bending moment

Correct! Wrong!

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

Zero length

Infinite length

Zero moment of inertia

None of the above

Correct! Wrong!

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

Zero

Less than 1

Greater than 1

Correct! Wrong!

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

(m + r) = 2j

(m + r) = 3j

(3m + r) = 3j

(m + 3r) = 3j

Correct! Wrong!

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

Displacements

Force

Displacements and forces

None of the above

Correct! Wrong!

To generate the jth column of the flexibility matrix

A unit force is applied at coordinate j and the displacements are calculated at all coordinates

A unit displacement is applied at coordinate j and the forces are calculated at all coordinates

A unit force is applied at coordinate j and the forces are calculated at all coordinates

All true

Correct! Wrong!

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

Is increased

Is decreased

Remains unchanged

Becomes zero

Correct! Wrong!

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

Roller support

Hinged support

Fixed support

Free end

Correct! Wrong!

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

Moment distribution method

Column analogy method

Three moment equation

None of the above

Correct! Wrong!

The three moments equation is applicable only when

The beam is prismatic

There is no settlement of supports

There is no discontinuity such as hinges within the span

The spans are equal

Correct! Wrong!

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

Unstable

Stable and statically determinate

Stable and statically indeterminate

None of the above

Correct! Wrong!

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

(i), (ii) and (iii)

(i), (ii) and (iv)

(i) and (ii)

Only (i)

Correct! Wrong!

CIVIL ENGINEERING STRUCTURAL ANAYSIS MCQ’s

Degree of freedom of a joint for the rigid jointed joint plane frame is

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

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

The degree of freedom for the vertical guided roller is

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

Castigliano’s first theorem is applicable

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

Principle of superposition is applicable when

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

In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as

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

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

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

The three moments equation is applicable only when

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

To generate the jth column of the flexibility matrix

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

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

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

The three moments equation is applicable only when

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

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