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Questions and Answers
What happens when the wing anti-ice P/B is set to ON on the ground?
What happens when the wing anti-ice P/B is set to ON on the ground?
- The wing anti-ice control valves do not open
- The wing anti-ice control valves open for 30 seconds as a test sequence (correct)
- Wing anti-ice control valves open if a pneumatic supply is available, and remain open
- Wing anti-ice control valves open provided OAT <10 ÌŠC
The ON light illuminates on the wing anti-ice P/B:
The ON light illuminates on the wing anti-ice P/B:
- When the anti-ice valves open
- When the P/B is set to ON (correct)
- When the FAULT light goes out
- When the anti-ice valves open and the fault light goes out
In the event of loss of electrical supply, the engine anti-ice valve:
In the event of loss of electrical supply, the engine anti-ice valve:
- Opens when the engine is shut down
- Opens when the engine is running (correct)
- Closes when the engine is running
- Opens when the engine is running if OAT < 10 ÌŠC
When the probe heat switch is in the AUTO position probe heat starts automatically:
When the probe heat switch is in the AUTO position probe heat starts automatically:
How is window heating regulated?
How is window heating regulated?
Window heat:
Window heat:
The window heat computer provides two power levels for the windshield:
The window heat computer provides two power levels for the windshield:
Pitot heating operates:
Pitot heating operates:
Window heat can be:
Window heat can be:
Electrical heating is provided for the protection of:
Electrical heating is provided for the protection of:
The engine nacelle is anti-iced by:
The engine nacelle is anti-iced by:
When engine anti-ice is selected on:
When engine anti-ice is selected on:
When an engine anti-ice valve is open:
When an engine anti-ice valve is open:
In the event of low air pressure:
In the event of low air pressure:
How can you check that engine anti-ice has been selected on:
How can you check that engine anti-ice has been selected on:
The speed limitation for use of windshield wipers is:
The speed limitation for use of windshield wipers is:
The rain repellent system is inhibited:
The rain repellent system is inhibited:
The rain repellent bottle should be replaced:
The rain repellent bottle should be replaced:
The electric wipers are controlled:
The electric wipers are controlled:
The wipers can operate at different speeds:
The wipers can operate at different speeds:
The rain repellent bottle and pressure indicator is located:
The rain repellent bottle and pressure indicator is located:
When the rain repellent P/B is pressed:
When the rain repellent P/B is pressed:
When the wiper is turned off:
When the wiper is turned off:
The wing anti-ice shut-off valves close automatically in case of:
The wing anti-ice shut-off valves close automatically in case of:
Slats protected by hot air supplied from the pneumatic system are:
Slats protected by hot air supplied from the pneumatic system are:
The wing anti-ice shutoff valves are controlled by:
The wing anti-ice shutoff valves are controlled by:
Where do the wing anti-ice indications appear on ECAM
Where do the wing anti-ice indications appear on ECAM
Study Notes
Wing Anti-Ice System
- When the wing anti-ice P/B is set to ON on the ground, the ON light illuminates, indicating activation.
- In case of electrical supply loss, the engine anti-ice valve closes to prevent ice formation.
- The wing anti-ice system utilizes pneumatic heating from the engine to maintain wing functionality.
Probe Heating
- Probe heat activates automatically when the probe heat switch is in the AUTO position, ensuring reliable aircraft performance.
Window Heating Management
- Window heating is regulated by a computer that adjusts the power levels based on ambient conditions.
- The window heat computer provides two power levels specifically for the windshield to maintain visibility.
Pitot and Window Heat
- Pitot tube heating operates independently to prevent ice blockage.
- Window heat can be adjusted as needed, providing flexible heating depending on conditions.
Electrical Heating
- Electrical heating systems protect critical components like probes and windows from icing.
Engine Anti-Icing Procedures
- The engine nacelle is anti-iced via hot air supplied from the engine, preventing ice accumulation during flight.
- When engine anti-ice is selected ON, the respective systems engage to protect the engine's performance.
- When the engine anti-ice valve is open, it allows hot air to circulate, maintaining proper operation under icy conditions.
Air Pressure Considerations
- Low air pressure may affect engine performance and can trigger automatic safety measures in the anti-ice systems.
Engine Anti-Ice Selection Check
- Engine anti-ice selection can be verified through indicator lights or system status displays in the cockpit.
Windshield Wiper Operations
- The windshield wipers have a speed limitation; operations should not exceed safe speeds to avoid damage.
- The rain repellent system is inhibited in certain conditions to prevent malfunction.
- The rain repellent bottle requires replacement when empty for continued effectiveness.
- Electric wipers are controlled through a cockpit interface, allowing for variable speed settings to accommodate conditions.
Rain Repellent and Indicator
- The rain repellent bottle and its pressure indicator are situated in a designated area for easy access and monitoring.
- Pressing the rain repellent P/B activates the system, applying the repellent for enhanced visibility.
- When the wiper is turned off, the system resets and prepares for the next use.
Wing Anti-Ice System Shutdown
- The wing anti-ice shut-off valves automatically close in specific scenarios to safeguard the system.
- Slats are protected by hot air supplied from the pneumatic system, preventing ice formation during flight.
- The wing anti-ice shutoff valves are managed via electronic controls for efficient operation.
ECAM Indications
- Wing anti-ice system indications are displayed prominently on the ECAM for crew awareness and operational monitoring.
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