Civil Engineering - Theory of Structures

Exercise :: Theory of Structures - Section 4

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.

Answer: Option C

Explanation:

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2. 

The forces acting normally on the cross section of a bar shown in the given figure introduce

A. compressive stress
B. tensile stress
C. shear stress
D. none of these.

Answer: Option B

Explanation:

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3. 

The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

A.
B.
C.
D.

Answer: Option D

Explanation:

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4. 

If the normal stresses due to longitudinal and transverse loads on a bar are σ1 and σ2 respectively, the tangential component of the stress on an inclined plane through θ°, the longitudinal load is

A. σ1 sin θ + σ2 cos θ
B. σ1 sin θ2 + σ2 cos2 θ
C.
D.

Answer: Option C

Explanation:

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5. 

The ratio of the section modulus of a square section of side B and that of a circular section of diameter D, is

A.
B.
C.
D.

Answer: Option B

Explanation:

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