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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Aircraft General Knowledge - Airframe, Systems, Powerplant > In a bootstrap air-cycle system, after the supply air has been pre-cooled in the primary heat exchanger, what is its sequence through the air-cycle machine and secondary heat exchanger?

163 - ATPL Question Bank in English - In a bootstrap air-cycle system, after the supply air has been pre-cooled in the primary heat exchanger, what is its sequence through the air-cycle machine and secondary heat exchanger?

Question 163 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

Passed across an expansion turbine, then compressed and passed through a heat exchanger.

It is compressed, cooled in the secondary heat exchanger, and then expanded through the turbine

Compressed, then passed across an expansion turbine and finally across a heat exchanger.

Passed across an expansion turbine, then directly to the heat exchanger.

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