Em42 A320 FAM ATA 30,35 Y 29

What happens in case of loss of electrical power supply to the engine anti-ice valve. The valve stays in its last known position. The valve opens automatically by spring force (Fail-safe open). The valve closes immediately to protect the engine. The valve remains controllable via the mechanical override.

What happens in case of insufficient air pressure to the engine anti-ice valve?. The valve is forced open by the WHC. The valve closes automatically by spring force. The valve oscillates between open and closed positions. The engine will automatically increase RPM to provide pressure.

With both engine anti-ice pushbuttons set to ON, does the EPR limit change?. No, the EPR limit remains constant regardless of the anti-ice status. Yes, the EPR limit is automatically reduced and the idle EPR is increased. Yes, the EPR limit increases to compensate for the bleed air loss. Only if the aircraft is above 20,000 feet.

When is the TAT probe heated?. Always, as soon as the batteries are switched ON. In flight only; it is not heated on the ground. Only when the TAT exceeds 10°C. Only when the Wing Anti-Ice is active.

When is the pitot probe heated?. Only when the air temperature is below freezing. Automatically at low power on the ground after one engine is started, and at full power in flight. Only when the pilot manually selects "PROBE/WINDOW HEAT" to ON. Only during the takeoff roll.

What happens in case of a WHC (Window Heat Computer) failure?. All cockpit windows will fog up immediately. The associated heating system for that side is lost and an ECAM caution is triggered. The backup WHC takes over control of both sides. The windows are heated by the avionics ventilation system instead.

What happens when the EIU (Engine Interface Unit) power supply circuit breakers are pulled?. The engine anti-ice valve closes. The engine anti-ice valve opens (simulating a loss of electrical power). The engine will automatically shut down. The FADEC will use the alternate air source.

How is each wiper controlled?. Both wipers are controlled by a single switch on the overhead panel. Each wiper is controlled independently by its own rotary selector (SLOW/FAST/OFF). They are controlled automatically by the rain sensor. They are operated by hydraulic pressure from the Blue system.

When is the rain repellent system inhibited?. When the aircraft is in flight. On the ground with engines stopped. When the speed is above 250 knots. Always, unless the "RAIN RPLNT" pushbutton is held for 30 seconds.

What should be done in case of inadvertent application of fluid (Rain Repellent)?. The windshield must be immediately wiped with a dry cloth. Do not operate the wipers; wash the windshield with plenty of water as soon as possible. Apply more fluid to dilute the concentration. Switch the window heat to MAX to evaporate the fluid.

How long is the spray sequence (Rain Repellent)?. It sprays continuously as long as the button is pressed. The timer provides a calibrated spray of approximately 1 second. It sprays for exactly 30 seconds. t follows a cycle of 5 seconds on and 5 seconds off.

Does each side of the Windshield system operate independently?. No, they are both controlled by WHC 1. Yes, each side has its own Window Heat Computer (WHC) and power supply. They are independent on the ground but linked in flight. Only the heating is independent; the de-fogging is shared.

How do you perform a complete test of the drain mast heating system?. By touching the mast to see if it is hot. Through the CIDS (Cabin Intercommunication Data System) or the MCDU. It is tested automatically every time the landing gear is retracted. By pouring water into the drain to see if it evaporates.

How many levels of ice detection are provided?*. Only one: Ice or No Ice. Two levels: Advisory (ICING SEV > 0) and Severe Ice. Three levels: Trace, Light, and Severe. No levels; it only triggers a master warning.

When is the ice detection system inhibited?. When the aircraft is on the ground. When the landing gear is down and locked. When the total air temperature (TAT) is above 15°C. When the Wing Anti-Ice system is manually selected to ON.

The crew oxygen system consists of: A chemical generator and continuous flow masks. A high-pressure cylinder, a pressure reducer, and quick-donning masks. A compressor that filters bleed air from the engines. Portable oxygen bottles stored under each pilot seat.

The chemical generator (Oxy mask) uses the basic principal of: Electrolysis of water. An exothermic chemical reaction providing oxygen for a limited time (15 or 22 min). Compressed air mixed with ambient nitrogen. Stored liquid oxygen converted to gas via heat.

Can the cylinder pressure be checked when there is no electrical power?. No, it requires the ECAM to be powered. Yes, by a direct-reading pressure gauge located on the cylinder itself. Only by using an external maintenance terminal. Only if the APU is running.

How is generated the oxygen on PBE?. By a small compressed air tank inside the hood. By a chemical reaction of Potassium Superoxide (KO2) with the moisture and CO2 of exhaled air. Through a umbilical cord connected to the aircraft’s main line. By a solid-state oxygen candle activated by a pull-cord.

What indicates an overboard discharge?. An "OXY LOW PRESS" warning on the ECAM. The absence of the green disc (ruptured) and the presence of a yellow indicator on the fuselage. A loud whistling sound in the avionics bay. A red flag appearing on the crew oxygen masks.

How do the time delay relays control the pax system automatic operation?. They shut down the system after 15 minutes to prevent fire. They allow a 30-second delay; if cabin altitude stays above 14,000 ft and the system hasn't deployed, the TMR RESET FAULT light triggers. They regulate the flow of oxygen based on the aircraft's rate of descent. They wait for the "No Smoking" signs to be turned on.

The high-pressure cylinders are installed in:*. The aft cargo compartment. A cradle with two quick-release clamps in the LH avionics compartment. The ceiling of the forward galley. The bulk cargo area.

The TMR RESET FAULT light comes on if: The oxygen cylinder pressure is below 500 psi. The 8WR and 9WR relays remain open after a 30-second delay when cabin altitude is above 14,000 ft. The manual shut-off valve on the cylinder is closed. The crew oxygen mask is not properly stowed in its box.

The continuous-flow first aid oxygen mask supplies oxygen for: Only the flight crew during smoke emergencies. Passengers, cabin crew members, and for first aid treatment. Maintenance personnel during fuel tank inspections. Only for the Captain and First Officer.

What is the function of the hood absorption system?. To absorb sweat from the user's forehead. To regenerate oxygen and absorb CO2/moisture within the PBE. To prevent the visor from fogging up using an electric heater. To muffle the sound of the oxygen flow for better communication.

The Portable Breathing Equipment gives:*. Only 5 minutes of oxygen for rapid evacuation. Smoke and fire protection for the eyes and respiratory tract, allowing mobility. Protection against hydraulic fluid contact only. A direct radio link to the cockpit.

The PBE is stored under. Ambient pressure in a plastic box. Vacuum conditions in a special sealed pouch inside a container. Constant refrigeration. High pressure (1850 psig).

The oxygen pressure reducer transmitter assembly is directly connected to. The passenger oxygen manifold. The oxygen cylinder. The cockpit overhead panel. The landing gear bay.

The high-pressure oxygen cylinder is made of: Light alloy (Aluminum) or steel, depending on the specific aircraft configuration. Carbon fiber only. Cast iron. Solid copper.

On the Gaseous Syst the REGULator LOw PRessure indicator light comes on amber if: The cylinder is overfilled. The supply pressure drops to approximately 50 ± 5 psig (3.45 ± 0.35 bar). The cockpit OXY button is set to ON. There is a leak in the overboard discharge pipe.

On the Gaseous Syst explain the FILLING procedure: Filling is done via a dedicated port; the pressure depends on the ambient/compartment temperature according to the filling chart (placard). Cylinders must be removed from the aircraft and sent to a lab for refilling. The system is filled by connecting the engines to the oxygen lines. It is a self-filling system that uses compressed cabin air.

Explain the PASSENGER GASEOUS OXYGEN SYS: It uses chemical candles located in the PSU of every seat row. It uses 6 to 8 high-pressure cylinders and a pressure regulator to supply oxygen to the cabin masks via pneumatic valves. It is a backup system that only activates if the engines fail. It provides oxygen only to the galleys and lavatories.

Explain the CREW OXYGEN CYLINDER REMOVAL & INSTALLATION procedure: The cylinder is held by quick-release clamps; the manual valve must be closed before removal and the line pressure bled. It requires specialized hydraulic tools to unscrew the cylinder from the floor. The cylinder can only be removed when the aircraft is pressurized. The technician must wear a full hazmat suit to handle the cylinder.

Which hydraulic systems are pressurized by an engine driven pump?. Blue and Yellow systems. Green and Yellow systems. Green and Blue systems. All three systems (Green, Blue, and Yellow).

Which hydraulic systems are pressurized by an engine driven pump?. Blue and Yellow systems. Green and Yellow systems. Green and Blue systems. All three systems (Green, Blue, and Yellow).

The maximum permitted internal leakage for components related to the Green hydraulic system is. 100 cm³/min..,. It must not be more than 9.0 l.min (2.37 USgal.mn). 500 cm³/min. No se permite ninguna fuga interna.

In normal operation, what is the blue hydraulic system pressurized by?. An Engine Driven Pump (EDP). An electric pump. The Power Transfer Unit (PTU). The Ram Air Turbine (RAT).

A sampling valve is installed on: Each engine tailpipe. On the HP manifold. The cockpit overhead panel only. The landing gear shock strut.

Is it possible to stow the Ram Air Turbine (RAT) in flight?. Yes, by pressing the RAT MAN ON button again. No, it is not, An interlock mechanism will only permit RAT stowage if the blades are properly aligned, this condition can only be accomplish on ground. Yes, it stows automatically when the aircraft exceeds 250 knots. No, it stows automatically when the blue electric pump is turned on.

What happens if the hydraulic pressure drops?*. The priority valves maintain the operation of essential systems by cutting off hydraulic power to heavy load users, the threshold of the priority valve is 1842 psi. The engine associated with the pump will automatically shut down. The aircraft immediately enters a mechanical backup mode. All flight controls lock in their current position.

A blue system pipeline is identified by. A green label and the number "1". A blue label and the number “3” on it. A yellow band and the number "2". A red band and the word "DANGER".

he total leakage of the components within a section must be:*. Ignored if the reservoir level is full. Must be less than the maximum permitted for that section. The total of sections leakages must not be more than the leakage permitted for the complete system. Exactly zero at all times. Checked only when the temperature is below 0°C.

When is the PTU operation inhibited?. The PTU is inhibited on ground, for cargo door operation and during the first engine start, if parking brake is set on or nose wheel steering is disconnected for towing. When both engines are running. Whenever the aircraft is in flight. Only when the Yellow electric pump is running.

When is the engine fire shut-off valve closed?. Automatically every time the engine is stopped. When the corresponding ENG FIRE pushbutton is released (out). Only if a leak is detected in the pylon. When the hydraulic reservoir reaches low level.

(On blue sys) The manifold on the top of the reservoir is equipped with: The High Pressure (HP) manifold is composed of: - two pressure switches, ⁃ a pressure transducer, - a leak measurement valve, -aHP filter, - a priorityvalvve, ⁃ a pressure relief valve, -a sampling valve. A manual filling pump and a nitrogen charging valve. A de-icing heater and a cooling fan. A backup electric motor.

When does the electric pump pressurize the blue system?. With the ELECtric (ELEC) PUMP P/B set to AUTO, the blue electric pump will run, if one engine is running, or the BLUE PUMP OverRiDe (OVRD) P/B is set to ON, or NLG is not compressed power is available from the APU. Only when the RAT is deployed. Only when the aircraft is on the ground for maintenance. When the Green system pressure exceeds 3000 psi.

When does the RAT deploy automatically?. The Ram Air Turbine (RAT) is deployed automatically if all AC electrical power sources are lost at speeds greater than 100 kts, or manually by using either one of the guarded P/Bs. When the landing gear is extended. Every time the Blue electric pump fails. Only if the pilot presses the RAT MAN ON button.

When is the Engine Driven Pump in the depressurized mode?*. Includes a blocking valve which isolates the pump from the hydraulic system when the pump operates in depressurized mode. Case drain filter clogging indication: P = 87 t 8.7 psi (6 t 0.6 bar). During the entire cruise phase to save fuel. Only when the aircraft is flying above 39,000 ft. When the PTU is running.

Do not operate the RAT deployment solenoids for more than: for more than 60 sec. You can operate them more than once, but vou must then let them cool down for 30 min. 1 minute. 30 seconds. 1 second.

On the flight crew oxygen system the oxygen flow is indicated by?. The blinker showing yellow and an OXY ON flag which appears on the left door when closed. The blinker showing green and an OXY ON flag which appears on the left door when closed. The blinker showing red and an OXY ON flag which appears on the left door when closed.

What procedure must be done in case of engine intake ice protection failure?. The aircraft may dispatched by MEL with one ENGINE anti-ice valve deactivated in OPEN or CLOSED. The A/C may fly in icing conditions if the valve is in CLOSED position. The aircraft may dispatched by MEL with one ENGINE anti-ice valve deactivated in OPEN or CLOSED. The A/C may not flown in icing conditions if the valve is in OPEN position. The aircraft may dispatched by MEL with one ENGINE anti-ice valve deactivated in OPEN or CLOSED. The A/C may not flown in icing conditions if the valve is in CLOSED position.

How is the pitot probe heated?. In flight, not on ground. Norm (High) heating_in flight, low heating on ground. In icing conditions only.

What precautions must be taken when using rain repellent?. If the fluid gets on the aircraft structure, wash immediately with any approved solvent. If the fluid gets on the aircraft structure, wash in the next maintenance visit with soap and water. If the fluid gets on the aircraft structure, wash immediately with soap and water.

What indicates a number 1 on a pipe label identification?. Yellow hydraulic system. Green hydraulic system. Blue hydraulic system.

What is the fail safe condition of the PTU solenoid valves?. Fail safe open. Fail safe closed. Safe life open.

When the PTU does runs automatically?. When the differential pressure between the green and blue circuits is greater than 500 psi (34.5 bars). When the differential pressure between the green and yellow circuits is lower than 500 psi (34.5 bars). When the differential pressure between the green and yellow circuits is greater than 500 psi (34.5 bars).

What components become inoperative if the cargo doors are operated?. The PTU is inhibited. yellow leak measurement valve closes and a signal is sent to the SFCC 1 to prevent flap movement. The PTU is inhibited, green leak measurement valve opens and a signal is sent to the SFCC 2 to prevent flap movement. The PTU is inhibited, yellow leak measurement valve closes and a signal is sent to the SFCC 2 to prevent flap movement.

On passenger cabin the oxygen supply starts automatically at?. When the cabin pressure equivalent to an altitude exceeding 8,000 ft. and stops below 10,000 ft. When the cabin pressure equivalent to an altitude exceeding 10,000 ft. and stops below 14,000 ft. c. When the cabin pressure equivalent to an altitude exceeding 14,000 ft.

What color is displayed in the overboard indicator before of an overpressure on the flight crew oxygen system?. The disc is displayed green. The disc is displayed red. The disc is displayed yellow.

All the reservoirs are pressurized to?. 50 psi to prevent pump cavitation. 50 psi to prevent high pressure demand. 72 psi to prevent pump depressurization.

What is the normal source of pressure for the blue hydraulic system?. On the blue system the normal source of pressure is the electrical pump (E-pump) and as an auxiliary sources the PTU. On the blue system the normal source of pressure is the electrical pump (E-pump) and as an auxiliary sources the Ram Air turbine (RAT). On the blue system the normal source of pressure is the Ram Air Turbine (RAT) and the electrical pump (E-pump) as an auxiliary source.

When operates the clogging indicators of the HP filter in the green system?. The clogging indicator operates when the differential pressure is lower than 87 ± 8.7 psi (6 ± 0.6 bars). The clogging indicator operates when the differential pressure is higher than 87 ± 8.7 psi (6 ± 0.6 bars). The clogging indicator operates when the differential pressure is higher than 85 ± 8.7 psi (6 ± 0.6 bars).

What is the purpose of the air pressure switch in the Yellow system?. The air pressure switch monitors the reservoir air pressure for ECAM indications the threshold of the air pressure switch is 1450 psi (99.5 bar). The air pressure switch monitors the reservoir air pressure for ECAM indications the threshold of the air pressure switch is 22 ps (1.52 bar). The air pressure switch monitors the accumulator air pressure for EFIS indications the threshold of the air pressure switch is 1450 psi (99.5 bar).

Which computer stores failure data for the WAI system?. WHC. ACSC. AEVC.

What is the concept of LEAK in the hydraulic system?. A leakage is a quantity of fluid on a component that is sufficient to become a drop. A leak is a quantity of fluid on the surface of a component that is not sufficient to become a drop. A leak is a quantity of fluid on the surface of a component that is sufficient to become a drop.

What happens in the cabin after a failure of a drain mast heater?. The indication appears on the FAP, the LAV will not be usable and has to be dispatched closed and locked with the water connection open. The indication appears on the FAP, the LAV will not be usable and has to be dispatched closed and locked with the water connection closed. The indication appears on the System display, the LAV related will not be usable and has to be dispatched closed and locked with the water connection closed.

How long is used the wing anti-ice on ground?. 30 min for test functions after select the pushbutton ON. 30 second for test functions after select the pushbutton ON. 30 second for test functions after select the pushbutton in AUTO.

During the “A” check, how must be checked the nitrogen charge pressure on the on hydraulic power accumulators?. The charge hast to be checked using the SYSTEM PAGE on the cockpit. The charge hast to be checked using the MCDU. The charge hast to be checked using the direct reading gage.

When the passenger system ON indicator light does come ON?. SYS light comes OFF white when the passenger oxygen system is electrically supplied and goes ON when the TMR RESET PB is pressed. SYS light comes ON white when the passenger oxygen system is electrically supplied and goes OFF when the TMR RESET PB is pressed. SYS light comes ON green when the passenger oxygen system is electrically supplied and goes OFF when the TMR RESET PB is pressed.

Which component maintains the operation of essential system by cutting off hydraulic power to heavy load users in the event of low hydraulic pressure?. Priority valves. Safety valves. Leak measurement valve.

What color is displayed in the overboard indicator after an overpressure on the flight crew oxygen system?. The disc is displayed yellow. The disc is displayed green. The disc is displayed red.

What is the purpose of the air pressure switch in the blue system?. The air pressure switch monitors the reservoir air pressure for ECAM indications the threshold of the air pressure switch is 1450 psi (99.5bar). The air pressure switch monitors the reservoir air pressure for ECAM indications the threshold of the air pressure switch is 22 psi (1.52 bar). The air pressure switch monitors the accumulator air pressure for EFIS indications the threshold of the air pressure switch is 1450 psi (99.5 bar).

What statement about windshield heating is correct?. The windshield heating operates at high power on ground and at low power in flight. The windshield heating operates at low power on ground and at high power in flight. The windshield heating operates at mid power on ground and at high power in flight.

How is the Wing anti-lce (WAI) controlled?. The double wing pushbutton switch on the anti-ice panel. Single pushbutton switch on the anti-ice center pedestal. Single pushbutton switch on the anti-ice panel.

What is the function of the interlock mechanism in the Ram Air Turbine?. The interlock mechanism will only permit RAT stowage if the blades are properly aligned; it also prevents rotation when stowed. The interlock mechanism will only permit RAT deployment if the blades are properly aligned; it also prevents rotation when stowed. The interlock mechanism will only permit RAT stowage if the blades are properly aligned; it also permit rotation when stowed.

What is the purpose of the pressure switch in the blue system?. The pressure switch monitors the reservoir pressure for ECAM indications the threshold of the pressure switch is 1450 psi (99.5 bars). The pressure switch monitors the pump pressure for EFIS indications the threshold of the pressure switch is 1450 psi (99.5 bars). The pressure switch monitors the pump pressure for ECAM indications the threshold of the pressure switch is 1450 psi (99.5 bars).

Which indicators are located on all hydraulic reservoirs?. Fluid and nitrogen over pressure. Nitrogen and fluid pressure. Air pressure and fluid quantity.

How long is the time delay to de-energize the oxygen container solenoid of the passengers?. 30 second. 6 second. 15 to 25 minutes.

Which is the purpose of the pressure relief valve, installed on each reservoir?. Relieves pressure to the Accumulator in the event of a system overpressure. The threshold of the pressure relief valve is 77 bar (5.3 psi). Relieves pressure to the Accumulator in the event of a system overpressure. The threshold of the pressure relief valve is 77 psi (5.3 bar). Relieves pressure to the atmosphere in the event of a system overpressure. The threshold of the pressure relief valve is 77 psi (5.3 bar).

On the passengers oxygen system, how is reseted the electrical circuit after system operation?. The MASK MANUAL ON P/B SW MUST BE PRESSED. The OXYGEN TMR RESET P/B SW MUST BE PRESSED. The MASTER WARNING P/B SW MUST BE PRESSED.

What is the purpose of the cabin PBE?. The PBE gives breathing means and ears protection in case of a fire and emission of smoke and noxious gases. The PBE gives breathing means and eyes protection in case of a fire and emission of smoke and noxious gases. The PBE gives breathing means and eyes protection only in case emission of smoke and noxious gases.

In order to provide reliable information for air data system, the air data probes are heated?. AUTOMATICALLY when the engines are shutdown. AUTOMATICALLY when both engines are running. AUTOMATICALLY when at least one engines is running.

What causes to the air data probes become heated when the aircraft is parked in maintenance with engines shutdown?. Probe heat computer, ElU or LGCIU circuit breakers pulled cause the probes heating switched ON. Probe heat computer, EIU or CFDIU circuit breaker pulled cause the probes heating switched ON. Probe heat computer, EIU or LGCIU circuit breakers pulled cause the probes heating switched OFF.

Where is installed the altitude pressure switch?. Avionics compartment. Fwd cargo compartment. Overhead panel.

What are some safety precautions when working on RAT system?. Isolation coupling must not be disconnected to prevent unwanted operation of the PTU and install the RAT safety device before working in the RAT area. Isolation coupling must be disconnected to prevent unwanted operation of the PTU and install the RAT safety device before working in the RAT area. Isolation coupling must be disconnected to prevent unwanted operation of the PTU and install the MLG safety device before working in the RAT area.

What indicates a number 3 on pipe label identification?. Green hydraulic system. Blue hydraulic system. Yellow hydraulic system.

What is displayed in the cockpit if the flight crew oxygen pressure drops below the minimum operating pressure?. RELUG LO PR is show amber on the DOOR/OXY page. RELUG LO PR is show amber on the ventilation panel pushbutton. RELUG LO PR is show amber on the AIR COND page.

How can the cargo doors be opened manually on ground?. The hand pump is installed on the ground service panel of the green system and is used for manual cargo door operation. The hand pump is installed on the ground service panel of the yellow system and is used for manual and automatic cargo door operation. The hand pump is installed on the ground service panel of the yellow system and is used for manual cargo door operation.

During a preflight inspection, what indicates that the crew portable oxygen system has been open?. The serviceability indicator is broken. The oxygen bottle is empty. The starter has been activated for the lanyard.

When operates the clogging indicators of the HP filter in the green system?. The clogging indicator operates when the differential pressure is lower than 87 ± 8.7 psi (6 ± 0.6 bars).... The clogging indicator operates when the differential pressure is higher than 87 ± 8.7 psi (6 ± 0.6 bars).... The clogging indicator operates when the differential pressure is higher than 85 ± 8.7 psi (6 ± 0.6 bars)....

The chemical generators offer oxygen to the passengers for about?. 15 to seconds. 12 to 25 minutes. 15 to 22 minutes.

When starts to operate the oxygen generator on the passenger masks after an automatic activation?. As soon as the mask fall down. When the first user pulls the mask toward his face, the release pin starts the chemical generation. When the last user pulls the mask toward his face, the release pin starts the chemical generation.

What type of indicator is located on all hydraulic accumulators?. Oil pressure accumulator. Air pressure accumulator. Nitrogen pressure accumulator.

The Engine Interface Unit (EIU) energizes the: Oil low-pressure and ground relays. High oil low-pressure and ground relays. Oil low-pressure and flight relays.

The chemical generator offer oxygen to the PBE for about?. 23 minutes. 20 minutes. 25 minutes.

When the PTU is inhibited?. On ground, for cargo door operation and during the second engine, if parking brake is set on or nose wheel steering is disconnected for towing. On ground, for cargo door operation and during the first engine if parking brake is set on or nose wheel steering is disconnected for towing. On ground, for cargo door operation and during the first engine, if parking brake is set off or nose wheel steering is disconnected for towing.

What indicates a number 2 on a pipe label identification?. Yellow hydraulic system. Green hydraulic system. Blue hydraulic system.

What statement about PIPE ROUTING is correct?. There are hydraulic pipes in the passenger cabin or flight compartment. There are no hydraulic pipes in the passenger cabin or flight compartment. There are no hydraulic pipes in the cargo compartments cabin or flight compartmen.

What message is displayed in the cockpit if at least one of the engine anti-ice protections is selected ON?. The message ENG A.ICE appears in green on the UPPER ECAM MEMO display. The message ENG A.ICE appears in green on the UPPER ECAM STS display. The message ENG A.ICE appears in amber on the UPPER ECAM MEMO display.

What is the normal source of pressure for the green hydraulic system?. On the green system the normal source of pressure is the electrical pump (E-Pump) and as an auxiliary source the EDP. On the green system the normal source of pressure is PTU and as an auxiliary source the EDP. On the green system the normal source of pressure is the EDP and the PTU as an auxiliary source.

During a preflight inspection, what indicates that the crew portable oxygen system has been open?. The serviceability indicator is broken. The oxygen bottle is empty. The starter has been activated for the lanyard....

What is the concept of LEAK in the hydraulic system?. A leakage is a quantity of fluid on a component that is sufficient to become a drop. A leak is a quantity of fluid on the surface of a component that is not sufficient to become a drop. A leak is a quantity of fluid on the surface of a component that is sufficient to become a drop..

How can the cargo doors be opened manually on ground?. The hand pump is installed on the ground service panel of the green system and is used for manual cargo door operation.. The hand pump is installed on the ground service panel of the yellow system and is used for manual and automatic cargo door operation.. The hand pump is installed on the ground service panel of the yellow system and is used for manual cargo door operation.