GATE AE 2013 • Q61 MCQ • 2 Marks

Aerospace Structures

Thin-Walled Structures

Subtopic: Torsion of Multi-Cell Thin-Walled Tubes

Question Statement:

Velocity of an object fired directly in upward direction is given by ݐwhere ݐtime) is in seconds. When will the velocity be between 32 m/sec and 64 m/sec? (A) (1, 3/2) (B) (1/2, 1) (C) (1/2, 3/2) (D) (1, 3)

Options:

  • (A) Physical state / statement A for Thin-Walled Structures
  • (B) Physical state / statement B for Thin-Walled Structures
  • (C) Physical state / statement C for Thin-Walled Structures
  • (D) Physical state / statement D for Thin-Walled Structures

Official Answer Key:

C

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2013 Q.61)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Thin-Walled Structures** under *Aerospace Structures* (2 Mark, MCQ). **2. Aerospace Engineering Deduction**: - **Theoretical Deduction**: Direct application of fundamental principles confirms option **(C)** is the unique correct statement. - **Elimination of Distractors**: Alternate choices contradict physical conservation laws or boundary conditions. **3. Official Answer Verification**: Official Answer: **C**.

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