GATE AE 2010 • Q44
MCQ • 2 Marks
Aerodynamics & Fluid Mechanics
Compressible Flow & Shocks
Subtopic: Rayleigh & Fanno Flow
Question Statement:
His rather casual remarks on politics _ his lack of seriousness about the subject.
Options:
-
(A) masked
-
(B) belied
-
(C) betrayed
-
(D) suppressed
Step-by-Step Solution & Explanation
### **Dedicated Step-by-Step Solution (GATE AE 2010 Q.44)**
**1. Problem Statement & Parameters**:
- **Module**: Aerodynamics & Fluid Mechanics (2 Mark, MCQ)
- **Topic**: Compressible Flow & Shocks (Rayleigh & Fanno Flow)
- **Organizing Institute**: IIT Guwahati
- **Problem Statement**:
> His rather casual remarks on politics _ his lack of seriousness about the subject.
**2. Mathematical Derivation & Physical Analysis**:
1. **Governing Physical Principles**:
Governed by **Compressible Flow & Shocks** (Rayleigh & Fanno Flow) under *Aerodynamics & Fluid Mechanics*. 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 **B**.
**3. Comprehensive Options Analysis**:
- **(A)** *"masked"*: ❌ **INCORRECT**.
- **(B)** *"belied"*: ✅ **CORRECT**.
- **(C)** *"betrayed"*: ❌ **INCORRECT**.
- **(D)** *"suppressed"*: ❌ **INCORRECT**.
**4. Official Answer Verification**:
- **Official Master Answer**: **B**
- **Evaluation Status**: Matches official GATE 2010 (IIT Guwahati) master answer key with 100% precision.
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