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

According to this ECAM ELEC DC page:

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

There is no degradation in the capability of DC system.

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

Correct! Wrong!

The Emergency generator is powered by:

The Static Inverter.

A Ram Air Turbine (RAT).

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

Correct! Wrong!

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

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

TR contactors monitoring.

Automatic management of contactors.

Correct! Wrong!

The APU battery:

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

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

Is dedicated to APU start only.

Correct! Wrong!

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

AC 1-2 BUS.

AC ESS.

AC 1-1 BUS.

Correct! Wrong!

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!

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!

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!

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!

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!

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!

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!

Each engine generator supplies power to:

Only its assigned BUS in all cases.

The BUS on the opposite side in normal operation.

Its assigned AC BUS in normal operation.

Correct! Wrong!

The main function of the MAINT BUS switch is:

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.

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

Correct! Wrong!

According to this ECAM ELEC page:

APU GEN is failed.

APU is not running.

APU GEN pb is set to Off.

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

One engine generator.

Two engine generators.

One engine generator and the EMER GEN.

Correct! Wrong!

The MAINT BUS switch is located:

On the FWD Circuit Breaker Panel behind the cockpit.

On the overhead system panel in the cockpit.

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

Correct! Wrong!

What is the meaning of this ECAM?

There is an engine generator fault.

There is a TR overload.

There is an ECMU fault.

Correct! Wrong!

An engine generator is driven:

By an Integrated Drive Generator (IDG).

At a ratio of 5 to engine speed.

Direct from the Accessory Gear Box (AGB).

Correct! Wrong!

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.

The TR 2 pb is set to OFF

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:

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

Operate when the gear is extended.

Supply the landing gear.

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!

Two Electrical Contactor Management Units (ECMU) provide:

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

Control of TR contactors.

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

Correct! Wrong!

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

There are no CB tripped or pulled.

Electric supply to CB is normal.

No fault detected in Electronics Equipment Bay.

Correct! Wrong!

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

AC 1-1.

AC ESS BUS.

AC 2-4.

Correct! Wrong!

What is the meaning of this ECAM?

Abnormal voltage.

Battery line contactor inoperative.

Charging current BAT1 increasing at abnormal rate.

Correct! Wrong!

According to this ECAM ELEC page:

BAT1 and BAT2 are not connected to the DC network.

BAT1 and BAT2 are faulty.

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

Correct! Wrong!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

According to this ECAM ELEC DC page:

The Emergency generator is powered by:

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

The APU battery:

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

During EMER GEN automatic start up sequence:

According to these indications:

This ECAM ELEC page shows:

When the MAINT BUS switch is on:

With APU GEN and external powers supplying the network:

What is the meaning of this ECAM?

When ECAM shows "ELEC ECMU 1 FAULT":

Each engine generator supplies power to:

The main function of the MAINT BUS switch is:

According to this ECAM ELEC page:

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

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

The MAINT BUS switch is located:

What is the meaning of this ECAM?

An engine generator is driven:

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

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

Two Electrical Contactor Management Units (ECMU) provide:

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

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

What is the meaning of this ECAM?

According to this ECAM ELEC page: