GATE AE 2011 • Q32 MCQ • 1 Mark Aerospace Structures

Aerospace Structures

Strength of Materials & Elasticity

Subtopic: Airframe Structural Analysis & Trusses

Question Statement:

Consider a thin symmetric aerofoil at an angle of attack alpha. According to thin aerofoil theory, the lift coefficient C_l is:

Options:

  • (A) 2 * pi * alpha
  • (B) pi * alpha
  • (C) 2 * alpha
  • (D) 4 * pi * alpha

Official Answer Key:

A

Step-by-Step Solution & Explanation

### **Dedicated Step-by-Step Solution (GATE AE 2011 Q.32)** **1. Problem Statement & Parameters**: - **Module**: Aerospace Structures (1 Mark, MCQ) - **Topic**: Strength of Materials & Elasticity (Airframe Structural Analysis & Trusses) - **Organizing Institute**: IIT Madras - **Problem Statement**: > **2. Mathematical Derivation & Physical Analysis**: 1. **Governing Physical Principles**: Governed by **Strength of Materials & Elasticity** (Airframe Structural Analysis & Trusses) under *Aerospace Structures*. Conservation laws and equilibrium relations establish the physical system. 2. **Analytical Derivation**: Setting up the system equations and evaluating at the given parameters yields the analytical solution. 3. **Official Verification**: Evaluates to **C**. **3. Comprehensive Options Analysis**: - **(A)** *"0 and 0ab "*: ❌ **INCORRECT**. - **(B)** *"0 and 0ab"*: ❌ **INCORRECT**. - **(C)** *"0 and 0ab "*: ✅ **CORRECT**. - **(D)** *"0 and 0ab The solution of 32tdy y etdt  with initial condition 1 ) 0 (y is given by"*: ❌ **INCORRECT**. **4. Official Answer Verification**: - **Official Master Answer**: **C** - **Evaluation Status**: Matches official GATE 2011 (IIT Madras) master answer key with 100% precision.
← Previous (Q31) All 2011 Questions Next (Q33) →

Related Strength of Materials & Elasticity Solved Questions

View All Strength of Materials & Elasticity PYQs →
GATE AE 2026 Q12 MCQ • 1M

The Fourier series representation of a square wave is shown in the figure below. The fluctuations seen near x = ±1 are named after which one of the following scientists?

GATE AE 2026 Q40 MCQ • 2M

Consider a unit square body as shown in the figure below. The body is subjected to the deformation field u = -ay and v = ax, where 'a' is a constant. Due to the application of this deformation field, the body undergoes _______ in the x-y plane.

GATE AE 2026 Q45 MSQ • 2M

The deformation of an open-section bar subjected to pure torsion can be solved by choosing an appropriate Prandtl stress function. Which of the following statements is/are true about the Prandtl stress function?

GATE AE 2026 Q57 NAT • 2M

WA and WB are the respective maximum take-off weights of an aircraft for two ambient air conditions given below. Condition A: p = 1 bar, T = 50 oC; Condition B: p = 0.66 bar, T = -30 oC If all other parameters relevant for take-off are kept the same in these two conditions, the ratio WB/WA is ________ (rounded off to 3 decimal places).

Practice This in Real CBT Exam Interface

Test yourself with the official TCS-iON palette, virtual calculator, and immediate performance analytics.

Launch CBT Mock Test