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Q1. | The ratio between the stress produced in a bar by a sudden applicaiton of load on compared to the stress produced by the gradual application of same load is |

A. | 1.5 [Wrong Answer] |

B. | 2.0 [Correct Answer] |

C. | 2.5 [Wrong Answer] |

D. | 3.0 [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ 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

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

slope deflection method

column analogy method

moment distribution method

none of the above

⇒ 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

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

internal forces only

external forces only

internal as well as external forces

none of the above

⇒ 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

⇒ Select the correct statement

Flexibility matrix is a square symmetrical matrix

Stiffness matrix is a square symmetrical matrix

both (a) and (b)

none of the above

⇒ 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

⇒ The method of virtual work in the analysis of structures results is

Compatible deformations

Equilibrium of forces

Stress strain relations

None of these

⇒ The analysis of statically indeterminate structures by the unit load method is based on

Consistent deformation

Stiffness method

Consistent force

None of these

⇒ Unequal settlements in the supports of a statically indeterminate structure develop

Member forces

Reactions from supports

No reactions

Strains in some members only

⇒ The timber floor not spanning on the masonry wall but properly anchored to the wall gives

lateral restraint but not rotational restraint

rotational restraint but not lateral restraint

both lateral and rotational restraints

neither lateral nor rotational restraint

⇒ 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

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

2

3

4

unrestricted

⇒ Castigliano's first theorem is applicable

for statically determinate structures only

when the system behaves elastically

only when principle of superposition is valid

none of the above

⇒ A free standing brick wall 20 cm thick is subjected to a wind pressure of 75kg/m2. The maximum height of wall from stability consideration is

0.64 m

0.96 m

1.28 m

1.5 m

⇒ 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

⇒ 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 head of the load reaches the section

the tail of the load reaches the section

the load position should be such that the section divides it equally on both sides

the load position should be such that the section divides the load in the same ratio as it divides the span

⇒ To generate the j th 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 co-ordinate 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

a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates

⇒ 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

0.005mm

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

stiffness

flexibility

influence coefficient

unit strain

⇒ Direct load carrying capacity of a brick masonry wall standing freely as against when it supports RC slab will be

more

less

the same in both the cases

100%

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

1

2

3

6

⇒ For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than

Vt x height of shorter opening

Vt x height of longer opening

Ax height of shorter opening

Vi x height of longer opening

⇒ The torsional stiffness of a member can be defined as

Torque for unit moment

Torque for unit twist

Moment for unit twist

Torsion for unit twist

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

2/EI

1/EI

1/2 EI

1/4 EI

⇒ The thickness of each leaf of a cavity wall shall not be less than

5 cm

7.5 cm

10 cm

15 cm

⇒ Maxwell's reciprocal theorem in structural analysis can be applied in

All elastic structures

Plastic structures

Symmetrical structures only

Prismatic element structures only

⇒ The fixed support in real beam becomes in the conjugate beam is

Fixed support

Hinged support

Roller support

Free support

⇒ The moment distribution method in structural analysis can be treated as

Force method

Displacement method

Flexibility method

None of these

⇒ The truss can be analysed by the methods of joints when the number of unknown at a joint is equal to

1

2

3

4