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

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

One engine generator and the EMER GEN.

Two engine generators.

One engine generator.

Correct! Wrong!

During EMER GEN automatic start up sequence:

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.

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

Correct! Wrong!

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

No effects on flight management.

Loss of the corresponding AC or DC bus.

APU generator required operational.

Correct! Wrong!

According to this ECAM ELEC page:

BAT1 and BAT2 are faulty.

BAT1 and BAT2 are not connected to the DC network.

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

Correct! Wrong!

What is the meaning of this ECAM?

There is a TR overload.

There is an ECMU fault.

There is an engine generator fault.

Correct! Wrong!

The APU battery:

Is dedicated to APU start only.

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

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

Correct! Wrong!

Each engine generator supplies power to:

Its assigned AC BUS in normal operation.

Only its assigned BUS in all cases.

The BUS on the opposite side in normal operation.

Correct! Wrong!

When the MAINT BUS switch is on:

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

The electric network supply is limited to Ground Service items.

Only the DC buses are powered.

Correct! Wrong!

What is the meaning of this ECAM?

BAT 2 is faulty.

TR 2 is faulty.

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

Correct! Wrong!

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

There are no CB tripped or pulled.

No fault detected in Electronics Equipment Bay.

Electric supply to CB is normal.

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!

With APU GEN and external powers supplying the network:

APU supplies AC ESS only.

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

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

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!

The MAINT BUS switch is located:

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

On the FWD Circuit Breaker Panel behind the cockpit.

On the overhead system panel in the cockpit.

Correct! Wrong!

According to these indications:

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

EXT POWER is plugged, but is not available.

EXT POWER is not plugged and APU GEN is connected.

Correct! Wrong!

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

AC 1-2 BUS.

AC 1-1 BUS.

AC ESS.

Correct! Wrong!

This ECAM ELEC page shows:

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

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

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

Correct! Wrong!

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

AC 1-1.

AC 2-4.

AC ESS BUS.

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!

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

Operate when the gear is extended.

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

Supply the landing gear.

Correct! Wrong!

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.

The TR 2 pb is set to OFF

Correct! Wrong!

What is the meaning of this ECAM?

Battery line contactor inoperative.

Charging current BAT1 increasing at abnormal rate.

Abnormal voltage.

Correct! Wrong!

According to this ECAM ELEC page:

APU GEN pb is set to Off.

APU GEN is failed.

APU is not running.

Correct! Wrong!

An engine generator is driven:

At a ratio of 5 to engine speed.

Direct from the Accessory Gear Box (AGB).

By an Integrated Drive Generator (IDG).

Correct! Wrong!

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

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

The other side outer engine generator.

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

Correct! Wrong!

The main function of the MAINT BUS switch is:

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

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

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

Correct! Wrong!

When ECAM shows "ELEC ECMU 1 FAULT":

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

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 try to reset corresponding generators.

Correct! Wrong!

According to this ECAM ELEC DC page:

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

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

There is no degradation in the capability of DC system.

Correct! Wrong!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

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

During EMER GEN automatic start up sequence:

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

According to this ECAM ELEC page:

What is the meaning of this ECAM?

The APU battery:

Each engine generator supplies power to:

When the MAINT BUS switch is on:

What is the meaning of this ECAM?

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

The Emergency generator is powered by:

With APU GEN and external powers supplying the network:

Two Electrical Contactor Management Units (ECMU) provide:

The MAINT BUS switch is located:

According to these indications:

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

This ECAM ELEC page shows:

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

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

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

What is the meaning of this ECAM?

According to this ECAM ELEC page:

An engine generator is driven:

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

The main function of the MAINT BUS switch is:

When ECAM shows "ELEC ECMU 1 FAULT":

According to this ECAM ELEC DC page: