Question

When a section is subjected to two equal and opposite pull, the body is subjected to:

• A. Compressive stress
• B. Impact stress
• C. Tensile stress
• D. Torsional stress

Hint:

- Pulling forces $\rightarrow$ Tensile stress (elongation). - Pushing forces $\rightarrow$ Compressive stress (contraction). - Twisting forces $\rightarrow$ Torsional stress (rotation).

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Stress is the internal restoring force developed per unit area in a solid body when it is subjected to external loads.
The type of stress depends on the direction and nature of the applied forces.

Step 2: Detailed Explanation:
Let us analyze the different types of stress:
- Tensile stress: Developed when a body is subjected to two equal and opposite collinear forces that pull away from each other, tending to elongate the body. (True)
- Compressive stress: Developed when a body is subjected to two equal and opposite collinear forces that push toward each other, tending to shorten the body.
- Torsional stress: Developed when a body is subjected to equal and opposite twisting couples or torques.
- Impact stress: Developed when a load is applied suddenly with kinetic energy.
Since the question specifies "two equal and opposite pull", the forces are tensile in nature, and the body experiences tensile stress.

Step 3: Final Answer
The correct option is (C).