test38

1. Where can the potable water quantity be checked? (level 1)

• A.         On the indicator on the water service panel only.

• B.         On the FAP.

• C.         On the indicator on the water service panel and on the FAP.

1. Why are drain valves installed in the waste water drain system? (level 1)

• A.         To allow the sinks and wash basins to be isolated.

• B.         To prevent a permanent loss of cabin air pressurization.

• C.         To prevent ice formation.

1.  Where does the toilet bowl rinsing water come from? (level 1)

• A.         Waste water tank.

• B.         Potable water tank.

• C.         Waste water system.

1. How is the waste transported to the waste holding tank? (level 1)

• A.         By the vacuum created in the waste tank.

• B.         By the water flushing and gravity.

• C.         By the vacuum created in the toilet bowl

1. Is it possible to drain the whole water system without electrical power? (level 1)

• A.         No, electrical power is always required.

• B.         Yes, all the drain valves can be operated manually.

• C.         No, only the water tank can be drained by using the fill/overflow drain valve.

1. How are the wash basin water heaters protected from damage should the normal temperature control fail? (level 2)

• A.         There is no protection

• B.         An over temperature safety device cuts off the electrical power

• C.         By a warning on the ECAM display

1. Why are the drain valve installed in the waste water drain system? (level 2)

• A.         To allow the sink and wash basin to be isolated

• B.         To prevent a permanent loss of cabin air pressurization

• C.         To prevent wash basin from being isolated

1. Can any toilet be used during servicing? (level 2)

• A.         Yes, because toilet use and servicing is independent

• B.         Yes, but only the front toilet

• C.         No, the door limit switch on the toilet servicing panel deactivates the toilet control system.

1. From where does the LAV INOP Fault light come at the FWD Attendant Panel? (level 2)

• A.         A level sensor in each toilet unit

• B.         A fault of the related lavatory flush control unit (FCU)

• C.         The door limit switch (panel door open) on the servicing panel.

1. How many valves are used during draining operation of A320 aircraft water tank (level 1)

• A.         Two

• B.         Three

• C.         Four