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Which of the following is a correct form of fuel flow?(a) C=C2θM^n(b) C=C2θ^\(\frac{1}{2}\)M(c) C=C2θM(d) C=C2θ^\(\frac{1}{2}\)M^nI got this question in an internship interview.The question is from Cruising Performance in portion Cruising Performance of Aircraft Performance

Answer»

The CORRECT answer is (d) C=C2θ^\(\frac{1}{2}\)M^n

To explain: The correct formula for fuel FLOW is C=C2θ^\(\frac{1}{2}\)M^n where θ is the temperature, M is MACH NUMBER and n varies from 0.2-0.6 for TURBOJET to turbofan. It depends on the bypass ratio of the combustion chamber.



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