question_answer

                 In a turbo-jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in:                   

A) Turbine blades, which is essentially an isentropic process.                                 

B) Turbine blades, which is polytropic process.

C) Exit nozzle, which is essentially an isentropic process.                                 

D) Exit nozzle, which is a constant volume process.