21-06. PNEUMATICS – PRESSURISATION AND AIR CONDITIONING SYSTEMS
All questions: 106
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1. The air-cycle cooling system produces cold air by:
2. A turbo-fan cold air unit will:
3. An aircraft with a pressurized cabin is settled at its cruise level. During the flight, a malfunction of the pressure controller is detected by the crew and the cabin rate of climb indicator reads -200 ft/min. Given that: DELTA P = Differential pressure Zc = Cabin altitude
4. (Refer to figure 021-20) In a pressurized aircraft whose cabin altitude is 8.000 ft, a crack in a cabin window makes it necessary to reduce the differential pressure to 5 psi. The flight level to be maintained in order to keep the same cabin altitude is:
5. In a typical bootstrap cooling system the supply air is:
