Question

Given below are two statements: 
Statement I: “Wind speed” should be considered while designing tall buildings. 
Statement II: “Buildings” should be rigid in an earthquake high risk zone. 
In the light of the above statements, choose the correct answer from the options given below.

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is true but Statement II is false
• D. Statement I is false but Statement II is true

Hint:

Wind loads affect tall buildings, while earthquake-resistant buildings must be ductile—not rigid.

Answer 1

The Correct Option is C

Concept: Structural design of buildings must account for different types of loads such as wind loads and seismic loads. Each type of load requires a specific design approach to ensure safety and performance. Detailed Explanation:
Statement I:
Tall buildings are significantly affected by wind forces.
Wind speed influences lateral loads, sway, vibration, and overall stability.
Ignoring wind effects can lead to discomfort for occupants and even structural failure.
Therefore, considering wind speed in the design of tall buildings is essential.
Hence, Statement I is true.
Statement II:
In earthquake-prone (high seismic risk) zones, buildings should be ductile and flexible, not rigid.
Excessive rigidity makes structures brittle, increasing the risk of sudden collapse during earthquakes.
Modern seismic design promotes energy dissipation through controlled deformation.
Hence, the statement that buildings should be rigid in high-risk earthquake zones is incorrect.
Therefore, Statement II is false. Conclusion: Statement I is correct, while Statement II is incorrect. Thus, the correct option is (C).
Final Answer: \(\boxed{\text{Statement I is true but Statement II is false}}\)