Consider a conventional subsonic fixed-wing airplane. e is the Oswald efficiency
factor and AR is the aspect ratio. Corresponding to the minimum ൬
ವ
ಽ
య మ⁄ ൰, which of
the following relations is true?
Options:
(A) C
C
ଶ = 1
𝜋eAR
(B) C
C
ଶ = 4
3𝜋eAR
(C) C
C
= 1
𝜋eAR
(D) C
ඥC
= 1
√𝜋eAR
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.40)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (2 Marks, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Structural Mechanics.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
Practice This in Real CBT Exam Interface
Test yourself with the official TCS-iON palette, virtual calculator, and immediate performance analytics.