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Worksheetstest38
Total questions: 58
Worksheet time: 29mins
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.
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.
Where does the toilet bowl rinsing water come from? (level 1)
A. Waste water tank.
B. Potable water tank.
C. Waste water system.
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
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.
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
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
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.
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.
How many valves are used during draining operation of A320 aircraft water tank (level 1)
A. Two
B. Three
C. Four
How many potable water service and drain panels are fitted to the A320 aircraft? (level 1)
A. One
B. Two
C. Three
Which signal close the Fill/ Drain valve during servicing with electrical power available? (level 3)
A. By a quantity transmitter which sends a tank full signal to close the fill/drain valve automatically
B. When the quantity gauge indicates full the valve has to be closed manually
C. There is no signal available, the tank has to be filled with a measured amount of water.
How is the water tank depressurized during servicing? (level 2)
A. By operating a wash basin faucet
B. By operating the fill/over flow valve
C. By a push button the servicing panel
To prevent ice formation on the drain masts, the drain masts are (level 2)
A. Heated by electrical
B. Heated by bleed air.
C. heated by electrical on the ground or heated by hot air in the air.
the waste moves from the toilet bowl to the waste holding tank by(level 2)
A. Differential pressure between the cabin and the atmosphere
B. Differential pressure between the waste tank and the atmosphere
C. Pressure of the rinse water.
On ground, when the toilet service panel is open(level 2)
A. The "SYS INOP" light comes on.
B. The "LAVatory INOPerative" light comes on
C. The vacuum generator comes on.
What is liquid level sensor function of waste system? (level 3)
A. To detect full of the waste tank
B. To control and monitor the toilet system operation.
C. To stop vacuum generator when A/C altitude more than 16000ft.
What is function of VSC? (level 2)
A. Fault reporting
B. Control and monitor the toilet system operation
C. control and monitor the toilet system operation a Fault reporting
For enhance system, the difference pressure information is supplied by: (level 2)
A. DEU B
B. CPC
C. Pressure switch.
lavatory can be isolated from the potable water distribution system through (level 2)
A. A manual shut-off valve.
B. A fill/drain valve.
C. An automatically shut-off valve.
For A320, using the fill/drain control handle to fill position: (level 2)
A. cannot electrically control overflow valve
B. can electrically control overflow valve
C. can electrically control drain valves
The potable water system can be pressurized by: (level 1)
A. Bleed air system only.
B. Airconditioning system.
C. Bleed air system or optional compressor
The waste water from lavatory wash basins and galley sinks to be: (level 3)
A. Discharged overboard via drain masts.
B. Drains into a tank onboard.
C. Keeps in integral container with lavatory.
The water quantity on FAP is displayed when: (level 3)
A. The "IND ON" pushbutton on the FAP is pressed in.
B. The potable water service door is open.
C. The "IND ON" pushbutton on the FAP is pressed in or The potable water service door is open.
The tank full light of water system controlled by: (level 3)
A. The overflow valve.
B. The water quanlity transmiter
C. The tank drain valve.
The tank full light comes on when: (level 2)
A. The overflow valve is open.
B. The water tank is full.
C. The tank drain valve is open.
Signal from the high-level switch use to (level 3)
A. Closes the fill/drain valve.
B. Opens the fill/drain valve.
C. To disconnect electrical supply to the water heaters in the lavatories.
The drain masts are (level 2)
A. Electrically heated to prevent ice formation.
B. Heated by bleed air.
C. Heated by both electrical and hot air.
The difference of pressure between the cabin and the atmosphere can be caused by (level 2)
A. The vacuum generator only
B. By aircraft pressurization.
C. The vacuum generator or by aircraft pressurization
Why the potable water tank is pressurized (level 2)
A. To ease draining operation.
B. To prevent cavitation condition.
C. To enable water supply from the tank to the service users.
Using the fill/drain control handle: (level 3)
A. cannot electrically control other valves
B. can electrically control other valves
C. can electrically control overflow valve only
How many drain service panel(s) is(are) installed on the A320 aircraft? (level 1)
A. 1.
B. 2.
C. 3.
When the waste tank is full (A320) (level 2)
A. The vacuum system cotroller (VSC) shuts down the toilet system.
B. The VSC sends a “LAV INOP” message to the forward attendent panel.
C. The Flush Control Units (FCUs) are automatically de-activated
When are the water and waste indications displayed on the Flight Attendant Panel (FAP) (Enhance sysem)? (level 3)
A. The Service panel is open or push Water/Waste pushbutton on the FAP.
B. The water tank or the waste tank is full.
C. The Fill drain valve or Fill/overflow valve is open.
The drain valves installed in the waste water system to (level 2)
A. Allow the sinks and wash basins to be isolated.
B. Prevent a permanent loss of cabin air pressurization.
C. Prevent wash basins from being isolated.
On ground, the vacuum generator start to operate as soon as (level 3)
A. The aircraft is energized.
B. Altitude pressure switch opens.
C. Flush switch is pressed in.
Without electrical power, the forward drain valve (level 2)
A. Can not be controlled.
B. Can be controlled by operating the fill/drain valve handle.
C. Is mechanically controlled by the forward drain valve handle.
For enhance system, the LGCIU is used to (level 3)
A. Supply air/ground signal to the CIDS Director to open the drain valve when A/C on the ground.
B. Backup in case of the Cabin Pressure Controller or the System Data Acquisition Concentrator failure.
C. Backup in case of the Altitude Pressure Switch failure.
The Flush Control Unit (FCU) controls (level 2)
A. The rinse and flush cycle.
B. The vacuum generator operation.
C. Backup in case of the Altitude Pressure Switch failure.
The Water Valves and Flush Valves of the toilet system are monitored by: (level 3)
A. The Vacuum Generator.
B. The Vacuum System Controller.
C. The associated Flush Control Unit.
Which device protects the water heaters in the lavatories from damage when the normal temperature control is failed? (level 3)
A. You should pull out the circuit breaker
B. You have to switch off the associated water heater when a related warning message appears on the ECAM.
C. An over temperature safety device will cut off the electrical power.
When the high level of the water quantity transmitter is trigged (level 3)
A. The warming of water tank overfill is trigged
B. The fill/drain valve closes and the water filling is stop
C. The electrical supply to the water fill/drain valve is cut
How many quantity transmitters are in the potable water tank? (level 3)
A. One capacitor type transmitter
B. Two capacitor type transmitters
C. One capacitor type transmitter and one ultra sonic type transmitter
The toilet system is monitored by (A321 enhanced): (level 3)
A. The FCU Bite.
B. The CIDS.
C. The VSC Bite.
Why is the potable water tank pressurized? (level 3)
A. To ease the draining operation.
B. To enable water supply from the tank to the service users.
C. To prevent ice formation.
Where does the potable water tank locate (A 321)? (level 2)
A. Behind the aft cargo , in LH pressurized area
B. Behind the forward cargo , in RH pressurized area
C. Behind the aft cargo , in RH pressurized area
Why is water tank pressurized? (level 1)
To ease draining operation.
To warm up water.
To allow water distribution.
What is used for A320 aircraft water tank filling operation? (level 1)
One handle, one valve.
Two handles, one valve.
One handle, two valves.
Where is the main drain port of the A320 aircraft potable water system? (level 1)
On the portable water service panel.
On the fwd service panel.
Both
How many potable water quantity indicators are there? (level 1)
One
Two
Three
How many quantity TRANSMITTER is in the potable water tank? (level 1)
One
Two
Three
What is purpose of the high level switch of the water quantity TRANSMITTER? (level 1)
De-energized a relay which closes the fill/drain valve when the tank is full.
To disconnect electrical supply to the water heater in the lavatories
To disconnect electrical supply to the fill/drain valve to closes it when the tank is full.
What is purpose of the water service panel door microswitch? (level 1)
To de-energized the indicating system when the portable water service panel door is opened.
To energized the indicating system when the portable water service panel door is closed.
To isolate the indicating system when the portable water service panel door is closed.
When does the vacuum generator operate? (level 1)
On ground only.
Up to an altitude of 16.000 t during climb and below 12.000 ft during descent.
During servicing operation.
How many toilet service panels are fitted on the aircraft? (level 1)
One
Two
Three
Where is the waste quantity displayed? (level 1)
On the toilet service panel
On the Forward Attendant Panel
On both panels.
The water valve and the flush valve are monitor by: (level 1)
The Vacuum System Controller.
The Vacuum Generator.
The associated Flush Control Unit BITE.
What are the functions of the VSC? (level 1)
System control and monitoring and fault reporting.
System control and monitoring
Fault reporting.
