Airbus A340 - Electrical Power - SmartCockpit - Airline training guides, Aviation, Operations, Safety

During EMER GEN automatic start up sequence:

The MAN ON p/b must be pushed to extinguish red fault light on the EMER ELEC PWR Panel.

Red fault light on EMER ELEC PWR Panel will remain on until the EMER GEN reaches its normal output.

It is not recommended to push the MAN ON p/b to confirm EMER ELEC CONFIG on the EMER ELEC PWR Panel.

Correct! Wrong!

With APU GEN and external powers supplying the network:

APU supplies AC 1-1 and AC 1-2 only.

APU is supplying left side, external power A is supplying the right side.

APU supplies AC ESS only.

Correct! Wrong!

The Emergency generator is powered by:

The GREEN hydraulic system when pressurized by engine 1 or 4 driven hydraulic pump or by a Ram Air Turbine.

The Static Inverter.

A Ram Air Turbine (RAT).

Correct! Wrong!

According to this ECAM ELEC DC page:

There is no degradation in the capability of DC system.

The Static Inverter is being powered because TR 1 is not powered.

The BAT 2 is discharging at a rate of 4 A.

Correct! Wrong!

This ECAM ELEC page shows:

GEN 4 pb is set to Off and engine 4 is running.

GEN 4 pb is set to Off and engine 4 is not running.

GEN 4 pb is set to On and engine 4 is running.

Correct! Wrong!

Two Electrical Contactor Management Units (ECMU) provide:

Control AC and DC contactors (except for TR contactors).

Control and monitoring AC and DC contactors (except TR which have their own control), galley shedding and no break power transfer.

Control of TR contactors.

Correct! Wrong!

According to these indications which AC BUS supplies the ESS TR?

AC 1-1 BUS.

AC 1-2 BUS.

AC ESS.

Correct! Wrong!

What is the meaning of this ECAM?

DC 2 BUS is not powered due to a short circuit.

BAT 2 is faulty.

TR 2 is faulty.

Correct! Wrong!

What is the meaning of this ECAM?

There is a TR overload.

There is an engine generator fault.

There is an ECMU fault.

Correct! Wrong!

The TR 2 pb is set to OFF

The TR 2 is faulty, then the DC 2 BUS is unpowered.

The TR 2 is faulty, DC 2 BUS is powered by TR 1 through DC 1 and DC BAT BUS.

Correct! Wrong!

According to this ECAM ELEC page:

APU is not running.

APU GEN pb is set to Off.

APU GEN is failed.

Correct! Wrong!

The APU battery:

Is dedicated to APU start only.

Can be used as a backup for BAT 1 or BAT 2.

May be used for engine start when the APU is not available.

Correct! Wrong!

According to this ECAM ELEC page:

BAT1 and BAT2 are supplying the DC network and discharge current is 40 A.

BAT1 and BAT2 are not connected to the DC network.

BAT1 and BAT2 are faulty.

Correct! Wrong!

When the MAINT BUS switch is on:

Only the DC buses are powered.

It is for the purpose of operating the cargo door only.

The electric network supply is limited to Ground Service items.

Correct! Wrong!

One function of the Electrical Contactor Management Units (ECMU) is:

Automatic management of contactors.

TR contactors monitoring.

Control of AC and DC bus ties, except TR contactor.

Correct! Wrong!

In flight, APU not running, an engine generator has failed. What is supplying the corresponding AC BUS?

The other side outer engine generator.

Corresponding AC BUS is not powered. APU must be started to recover AC BUS.

The other generator on the same side as the failed generator.

Correct! Wrong!

The MAINT BUS switch is located:

On the overhead system panel in the cockpit.

On the Purser's Control Panel in the FWD cabin.

On the FWD Circuit Breaker Panel behind the cockpit.

Correct! Wrong!

The minimum number of generators required to supply the whole network is:

One engine generator and the EMER GEN.

One engine generator.

Two engine generators.

Correct! Wrong!

An engine generator is driven:

At a ratio of 5 to engine speed.

By an Integrated Drive Generator (IDG).

Direct from the Accessory Gear Box (AGB).

Correct! Wrong!

On C/B ECAM page, the pilot reads "NORMAL". What does it mean?

Electric supply to CB is normal.

There are no CB tripped or pulled.

No fault detected in Electronics Equipment Bay.

Correct! Wrong!

The main function of the MAINT BUS switch is:

To allow EXT PWR to supply AC and DC ESS buses and their respective shed buses.

To allow selected ground equipment to be powered without powering the entire electric system.

To power the AC and DC systems when the aircraft is on ground.

Correct! Wrong!

What is the meaning of this ECAM?

Abnormal voltage.

Charging current BAT1 increasing at abnormal rate.

Battery line contactor inoperative.

Correct! Wrong!

Each engine generator supplies power to:

The BUS on the opposite side in normal operation.

Only its assigned BUS in all cases.

Its assigned AC BUS in normal operation.

Correct! Wrong!

According to these indications:

EXT POWER is not plugged and APU GEN is connected.

EXT POWER is being plugged and available for use when started.

EXT POWER is plugged, but is not available.

Correct! Wrong!

When ECAM shows "ELEC ECMU 1 FAULT":

ECMU 1 controls Generator Line Contactors (GLC 3 and 4) and you should reset generator 3 and 4.

ECMU 1 controls GLC 1 and 2 and you should not reset corresponding generators.

ECMU 1 controls GLC 1 and 2 and you should try to reset corresponding generators.

Correct! Wrong!

Loss of one generator or TR (except, if lost is due to over current detection) provides:

APU generator required operational.

No effects on flight management.

Loss of the corresponding AC or DC bus.

Correct! Wrong!

As shown on this ECAM ELEC page, which BUS is normally supplying the ESS TR?

AC 2-4.

AC 1-1.

AC ESS BUS.

Correct! Wrong!

The EMER GEN is powered by a hydraulic system pressurized by an engine driven hydraulic pump. Pressing the LAND RECOVERY p/b switch will:

Supply the landing gear.

Operate when the gear is extended.

Normally recover the AC and DC LAND RECOVERY BUSES and the components for approach and landing.

Correct! Wrong!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

During EMER GEN automatic start up sequence:

With APU GEN and external powers supplying the network:

The Emergency generator is powered by:

According to this ECAM ELEC DC page:

This ECAM ELEC page shows:

Two Electrical Contactor Management Units (ECMU) provide:

According to these indications which AC BUS supplies the ESS TR?

What is the meaning of this ECAM?

What is the meaning of this ECAM?

According to this ECAM ELEC page:

The APU battery:

According to this ECAM ELEC page:

When the MAINT BUS switch is on:

One function of the Electrical Contactor Management Units (ECMU) is:

In flight, APU not running, an engine generator has failed. What is supplying the corresponding AC BUS?

The MAINT BUS switch is located:

The minimum number of generators required to supply the whole network is:

An engine generator is driven:

On C/B ECAM page, the pilot reads "NORMAL". What does it mean?

The main function of the MAINT BUS switch is:

What is the meaning of this ECAM?

Each engine generator supplies power to:

According to these indications:

When ECAM shows "ELEC ECMU 1 FAULT":

Loss of one generator or TR (except, if lost is due to over current detection) provides:

As shown on this ECAM ELEC page, which BUS is normally supplying the ESS TR?

The EMER GEN is powered by a hydraulic system pressurized by an engine driven hydraulic pump. Pressing the LAND RECOVERY p/b switch will: