GATE AE 2016 • Q23
MCQ • 1 Mark
Flight Mechanics & Space Dynamics
Static Stability & Control
Subtopic: Longitudinal Static Stability & Neutral Point
Question Statement:
Indicated airspeed is used by a pilot during
Options:
-
(A) take-off.
-
(B) navigation.
-
(C) setting the engine RPM.
-
(D) setting the elevator angle.
Step-by-Step Solution & Explanation
### **Dedicated Step-by-Step Solution (GATE AE 2016 Q.23)**
**1. Problem Statement & Parameters**:
- **Module**: Flight Mechanics & Space Dynamics (1 Mark, MCQ)
- **Topic**: Static Stability & Control (Longitudinal Static Stability & Neutral Point)
- **Organizing Institute**: IISc Bengaluru
- **Problem Statement**:
> Indicated airspeed is used by a pilot during
**2. Mathematical Derivation & Physical Analysis**:
1. **Governing Physical Principles**:
Governed by **Static Stability & Control** (Longitudinal Static Stability & Neutral Point) under *Flight Mechanics & Space Dynamics*. 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)** *"take-off."*: ❌ **INCORRECT**.
- **(B)** *"navigation."*: ✅ **CORRECT**.
- **(C)** *"setting the engine RPM."*: ❌ **INCORRECT**.
- **(D)** *"setting the elevator angle."*: ❌ **INCORRECT**.
**4. Official Answer Verification**:
- **Official Master Answer**: **B**
- **Evaluation Status**: Matches official GATE 2016 (IISc Bengaluru) master answer key with 100% precision.
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