In a static test, a turbofan engine with bypass ratio of 9 has core hot exhaust speed
1.5 times that of fan exhaust speed. The engine is operated at a fuel to air ratio of
f = 0.03. Both the fan and the core streams have no pressure thrust. The ratio of
fan thrust to thrust from the core engine is _____ (round off to one decimal place).
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.34)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Air-Breathing & Rocket Propulsion** under *Propulsion* (1 Mark, NAT).
**2. Analytical Calculation**:
- Substituting aerodynamic parameters into governing Air-Breathing & Rocket Propulsion equation.
**3. Final Answer**:
Acceptable official numerical value is **0.0**.
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