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What is the function of a typical nozzle?

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in Aircraft Design by (701k points)
What is the function of a typical nozzle?

(a) To expand exhaust flow

(b) To reduce flow velocity

(c) To generate lift to fly

(d) To increase pressure

This question was addressed to me in exam.

Question is from Propulsion in chapter Propulsion and Fuel System Integration of Aircraft Design

1 Answer

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Best answer
Right answer is (a) To expand exhaust flow

Best explanation: Function of nozzle is to expand flow. Nozzle is used to increase flow velocity by decreasing pressure and temperature of the flow. Lift is generated by wings primarily. Pressure can be increased by using compressor.

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