Civil Engineering: Questions On Theory Of Structure

15 Questions | Total Attempts: 1089  Settings  .

• 1.
In case of principal axes of a section
• A.

Sum of moment of inertia is zero

• B.

Difference of moment inertia is zero

• C.

Product of moment of inertia is zero

• D.

None of these.

• 2.
At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by
• A.

Depth of the section

• B.

Depth of the neutral axis

• C.

Maximum tensile stress at the section

• D.

Maximum compressive stress at the section

• E.

None of these.

• 3.
Which of the following is not the displacement method
• A.

Equilibrium method

• B.

Column analogy method

• C.

Moment distribution method

• D.

Kani’s method

• 4.
Select the corrects 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

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

5mm

• B.

0.5mm

• C.

0.05mm

• D.

0.005mm

• 6.
Pick up the correct statement from the following:
• A.

The moment of inertia is calculated about the axis about which bending takes place

• B.

If tensile stress is less than axial stress, the section experiences compressive stress

• C.

If tensile stress is equal to axial stress, the section experiences compressive stress

• D.

If tensile stress is more than axial stress, some portion of the section experiences a tensile stress

• E.

All the above.

• 7.
The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is
• A.

1

• B.

2

• C.

3

• D.

4

• 8.
If in a rigid jointed space frame (6m + r) < 6j, then the frame is
• A.

Unstable

• B.

Stable and statically determinate

• C.

Stable and statically indeterminate

• D.

None of the above

• 9.
No. of unknown internal forces in each member of a rigid jointed plane frame is
• A.

6

• B.

3

• C.

2

• D.

1

• 10.
• A.

Magnitude

• B.

Direction

• C.

Point of application

• D.

All the above.

• 11.
The normal and tangential components of stress on an inclined plane through θ° to the direction of the force, will be equal if θ is
• A.

45°

• B.

30°

• C.

60°

• D.

90°

• 12.
In moment distribution method, the sum of the distribution factors of all the members meeting at any joint is always
• A.

Zero

• B.

Less than one

• C.

One

• D.

Greater than one

• 13.
A body is said to be in equilibrium if
• A.

It moves horizontally

• B.

It moves vertically

• C.

• D.

None of these.

• 14.
The number of independent equations to be satisfied for static equilibrium of a plane structure is
• A.

1

• B.

2

• C.

3

• D.

6

• 15.
The principle of virtual work can be applied to elastic system by considering the virtual work of
• A.

Internal forces only

• B.

External forces only

• C.

Internal as well as external forces

• D.

None of the above

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