# Design of RC Structures Questions and Answers – Shear Stress in Homogeneous Sections

This set of Design of RC Structures Multiple Choice Questions & Answers (MCQs) focuses on “Shear Stress in Homogeneous Sections”.

1. A beam is a structural member which is subjected to……………
a) Axial tension or compression
b) Transverse loads and couples
c) Twisting moment
d) No load, but its axis should be horizontal and x-section rectangular or circular
View Answer

Answer: b
Explanation: A beam is a structural member when it is subjected to transverse loads and couples as because of loading, moment occurs in it and it behaves like a structure.

2. An arrangement of bars AB and BC, each of negligible mass are shown in the figure. There is also a loading P. What is the correct statement from the following in this arrangement?

a) Bar AB is subjected to bending but bar BC is not subjected to bending
b) Bar AB is not subjected to bending but bar BC is subjected to bending
c) No bar is subjected to bending
d) Both bars AB and BC are subjected to bending in the figure.
View Answer

Answer: c
Explanation: The force is in downward direction and all the magnitudes are balanced so there is no bending on AB and BC.

3. Select the statically determinate structure from the following.
a) Fixed beam
b) Overhanging and simply supported beams
c) Continuous beams
d) Only simply supported beams
View Answer

Answer: b
Explanation: The static equilibrium equations are enough to determine all the internal forces in it so they are statically determinate structure.
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4. What is the direction of shear stress in a loaded beam?
a) Horizontal
b) Vertical
c) Both Horizontal and vertical
d) No shear stress at all
View Answer

Answer: c
Explanation: The force acts from both horizontal as well as from vertical axis so stress also acts from both directions.

5. Shear stress variation is ______
a) Linear
b) Only Rational
c) Only Irrational
d) Parabolic
View Answer

Answer: d
Explanation: Shear stress variation is always parabolic in nature because somehow they are supposed to be uniform.

6. Shear stress is zero at the central fiber.
a) True
b) False
View Answer

Answer: b
Explanation: Shear stress variation is zero at the outermost fiber not the central fiber.

7. A beam is subjected to loads as shown in the following figure,

What will be the maximum bending moment?
a) Wa
b) Wl
c) W(l-a)
d) W(l-2a)
View Answer

Answer: a
Explanation: The maximum bending moment is the product of the load and the perpendicular distance to the maximum point.
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8. Point of contra-flexure is also called point of maximum shear force.
a) True
b) False
View Answer

Answer: b
Explanation: The shear force is not maximum at the point of contra-flexure, and the point of contra-flexure is called point of inflexion.

9. What does shear stress causes?
a) Deformation
b) Distortion
c) Sagging
d) Both deformation and distortion.
View Answer

Answer: b
Explanation: Shear stress causes disturbance and variation in the structure.
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10. At what point does shear stress is maximum?
a) Outermost fiber
b) Central Fiber
c) Both outermost and central fiber
d) Neither outermost nor central fiber
View Answer

Answer: b
Explanation: Shear stress is maximum at central fiber and zero at outermost fiber.

Sanfoundry Global Education & Learning Series – Design of RC Structures

To practice all areas of Design of RC Structures, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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