1501-1600

1501. The equipment cooling system is (Level 2)

• a) A sub system of Air conditioning system
• b) Independent of Air conditioning system
• c) Semi-dependent of Air conditioning system

1502. Which method of cabin pressure leakage test requires people in cockpit for monitor the system (Level 2)

• a) Use APU and switch on packs
• b) Use special external equipment via the low pressure ground connector
• c) When use APU or external power

1503. Cockpit air supply uses (Level 2)

• a) Fresh air only
• b) Recirculation air only
• c) Mixed air

1504. If the cabin altitude increases above normal values, according to the flight altitude (Level 2)

• a) The passenger will get the oxygen mask first
• b) The flight crew will get the oxygen mask first
• c) The flight crew and passenger get oxygen mask at the same time

1505. When the cabin altitude increases, the volumetric flow (Level 2)

• a) Increases
• b) Decreases
• c) Keep constant

1506. A red warning light on the door flashing indicates (Level 2)

• a) Door is locked and armed
• b) Door is locked and dis-armed
• c) The cabin is pressurized

1507. At very end of the pack system, it is (Level 2)

• a) The check valve
• b) The pack sensor
• c) The water separator

1508. Air exiting the compressor side of an ACM (Level 3)

• a) Will have decreased pressure and temperature.
• b) No change in temperature or pressure as it is a centrifugal compressor.
• c) Will have increased pressure and temperature.

1509. If pressurization air supplies come from an engine compressor, an internal oil leak will. (Level 3)

• a) Not affect the issue as it is automatically detected and vented overboard.
• b) Contaminate the air.
• c) Not contaminate the air.

1510. How to check the position of the equipment cooling system (Level 3)

• a) By look at the valve position
• b) By check the indication on display unit in cockpit
• c) By look at the valve position and check the indication on display unit in cockpit