Question Statement:
For International Standard Atmosphere (ISA) up to 11 km, which of the following
statement(s) is/are true?
Options:
-
(A) The hydrostatic/ aerostatic equation is used
-
(B) The temperature lapse rate is taken as -10ିଶ K/m
-
(C) The sea level conditions are taken as: pressure, p௦ = 1.01325 × 10ହPa;
temperature, T௦ = 300 K; density, 𝜌௦ = 1.225 kg/mଷ
-
(D) Air is treated as a perfect gas
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.27)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (1 Mark, 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)**.
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