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

What is the meaning of this ECAM?

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

TR 2 is faulty.

BAT 2 is faulty.

Correct! Wrong!

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

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

The other side outer engine generator.

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

Correct! Wrong!

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

AC 1-1 BUS.

AC ESS.

AC 1-2 BUS.

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.

A Ram Air Turbine (RAT).

The Static Inverter.

Correct! Wrong!

During EMER GEN automatic start up sequence:

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

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:

APU generator required operational.

No effects on flight management.

Loss of the corresponding AC or DC bus.

Correct! Wrong!

The APU battery:

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

Is dedicated to APU start only.

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

Correct! Wrong!

According to these indications:

EXT POWER is not plugged and APU GEN is connected.

EXT POWER is plugged, but is not available.

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

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 try to reset corresponding generators.

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

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!

Two Electrical Contactor Management Units (ECMU) provide:

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.

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

Correct! Wrong!

With APU GEN and external powers supplying the network:

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

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

APU supplies AC ESS only.

Correct! Wrong!

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

TR contactors monitoring.

Automatic management of contactors.

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

Correct! Wrong!

According to this ECAM ELEC page:

BAT1 and BAT2 are faulty.

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

BAT1 and BAT2 are not connected to the DC network.

Correct! Wrong!

When the MAINT BUS switch is on:

Only the DC buses are powered.

The electric network supply is limited to Ground Service items.

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

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.

Supply the landing gear.

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

Correct! Wrong!

This ECAM ELEC page shows:

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

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.

Correct! Wrong!

According to this ECAM ELEC page:

APU is not running.

APU GEN is failed.

APU GEN pb is set to Off.

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!

Each engine generator supplies power to:

The BUS on the opposite side in normal operation.

Its assigned AC BUS in normal operation.

Only its assigned BUS in all cases.

Correct! Wrong!

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

Electric supply to CB is normal.

No fault detected in Electronics Equipment Bay.

There are no CB tripped or pulled.

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 main function of the MAINT BUS switch is:

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.

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

Correct! Wrong!

What is the meaning of this ECAM?

Battery line contactor inoperative.

Charging current BAT1 increasing at abnormal rate.

Abnormal voltage.

Correct! Wrong!

The TR 2 pb is set to OFF

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

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

Correct! Wrong!

According to this ECAM ELEC DC page:

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

There is no degradation in the capability of DC system.

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

Correct! Wrong!

An engine generator is driven:

Direct from the Accessory Gear Box (AGB).

At a ratio of 5 to engine speed.

By an Integrated Drive Generator (IDG).

Correct! Wrong!

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

One engine generator.

One engine generator and the EMER GEN.

Two engine generators.

Correct! Wrong!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

What is the meaning of this ECAM?

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

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

The Emergency generator is powered by:

During EMER GEN automatic start up sequence:

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

The APU battery:

According to these indications:

When ECAM shows "ELEC ECMU 1 FAULT":

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

Two Electrical Contactor Management Units (ECMU) provide:

With APU GEN and external powers supplying the network:

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

According to this ECAM ELEC page:

When the MAINT BUS switch is on:

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

This ECAM ELEC page shows:

According to this ECAM ELEC page:

What is the meaning of this ECAM?

Each engine generator supplies power to:

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

The MAINT BUS switch is located:

The main function of the MAINT BUS switch is:

What is the meaning of this ECAM?

According to this ECAM ELEC DC page:

An engine generator is driven:

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