Assume that during cruise flight with airconditioning packs ON, the outflow valve(s) would close. The result would be that:

In a manually operated system, the cabin altitude rate of change is normally controlled by :

Assuming cabin pressure decreases, the cabin rate of climb indicator should indicate :

Assuming cabin differential pressure has attained the required value in normal flight conditions, if flight altitude is maintained :

Under normal flight conditions, cabin pressure is controlled by :

The term "pressure cabin" applies when an aeroplane :

A cabin pressure controller maintains a pre-set cabin altitude by regulating the :

A warning device alerts the crew in case of an excessive cabin altitude. This warning must be triggered on reaching the following altitude:

With regard to the pneumatic mechanical devices which afford protection against the formation of ice, the only correct statement is:

On most modern airliners the cabin pressure is controlled by regulating the:

The purpose of cabin air flow control valves in a pressurization system is to : pressure surges.

Assuming cabin differential pressure has attained the required value in normal flight conditions, if flight altitude is maintained:

Cabin pressure is controlled by :

During level flight at a constant cabin pressure altitude (which could be decreased, even at this flight level), the cabin outflow valves are:

The purpose of a ditching control is to:

The cabin pressure is regulated by the:

The pressurization of the cabin is controlled by :

Cabin differential pressure means the pressure difference between:

Under normal conditions (JAR 25) the cabin pressure altitude is not allowed to exceed:

On a modern large pressurized transport aircraft, the maximum cabin differential pressure is approximately:

During a normal pressurised climb after take-off:

If the maximum operating altitude of an airplane is limited by the pressurized cabin, this limitation is due to the maximum:

The "cabin differential pressure" is:

The cabin rate of descent is:

The maximum differential pressure of a transonic transport category airplane is approximately:

The pneumatic ice protection system is mainly used for:

Cabin altitude means the:

(For this question use annex 021-786A) In a pressurized aircraft whose cabin altitude is 8000 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:

If the cabin altitude rises (aircraft in level flight), the differential pressure: action is taken.

The purpose of the cabin pressure controller, in the automatic mode, is to perform the following functions: 1. control of cabin altitude, 2. control of cabin altitude rate-of-change, 3. limitation of differential pressure 4. balancing aircraft altitude with cabin altitude 5. cabin ventilation 6. keeping a constant differential pressure throughout all the flight phases. The combination regrouping all the correct statements is :

Concerning the sequential pneumatic impulses used in certain leading edge de- icing devices, one can affirm that : 1 - They prevent ice formation. 2 - They are triggered from the flight deck after icing has become visible. 3 - A cycle lasts more than ten seconds. 4 - There are more than ten cycles per second. The combination which regroups all the correct statements is :

If the pressure in the cabin tends to become lower than the outside ambient air pressure the :

A pneumatic de-ice system should be operated ..

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 - 200ft/min. Given that : DELTA P: Differential pressure Zc: Cabin altitude

An aircraft with a pressurized cabin flies at level 310. Following a malfunction of the pressure controller, the outflow valve runs to the open position. Given : VZc: Cabin rate of climb indication Zc: Cabin pressure altitude DELTA P: Differential pressure This will result in a: