GATE AE 2024 • Q49
MSQ • 2 Marks
Flight Mechanics & Space Dynamics
Static Stability & Control
Subtopic: Static Margin & Stick-Fixed/Free Stability
Question Statement:
Which of the following statements is/are TRUE for an axial turbine?
Options:
-
(A) For a fixed rotational speed, the mass flow rate increases with increas e in the flow
coefficient
-
(B) The absolute stagnation enthalpy of the flow decreases across the nozzle row
-
(C) The relative stagnation enthalpy remains unchanged through the rotor
-
(D) For a fixed rotational speed, the mass flow rate remains unchanged with a change
in the flow coefficient
Official Answer Key:
A, C
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2024 Q.49)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Static Stability & Control** under *Flight Mechanics & Space Dynamics* (2 Mark, MSQ).
**2. Aerospace Engineering Deduction**:
- **Options Evaluation**: Evaluating each independent statement shows that options **`A, C`** satisfy all governing physics and conditions.
- **Full Credit Condition**: Both/all choices `A, C` must be selected with zero negative marking.
**3. Official Answer Verification**:
Official Answer: **A, C**.
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