Question Statement:
From the options given, select all that are true for turbofan engines with
afterburners.
Options:
-
(A) Turning afterburner ON increases specific fuel consumption.
-
(B) Turbofan engines with afterburners have variable area nozzles.
-
(C) Turning afterburner ON decreases specific fuel consumption.
-
(D) Turning afterburner ON increases stagnation pressure across the engine.
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2023 Q.28)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Air-Breathing & Rocket Propulsion** under *Propulsion* (1 Mark, MSQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Air-Breathing & Rocket Propulsion.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
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