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

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!

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!

According to these indications:

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

EXT POWER is not plugged and APU GEN is connected.

EXT POWER is plugged, but is not available.

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!

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!

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!

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!

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!

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

AC ESS BUS.

AC 1-1.

AC 2-4.

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.

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

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

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!

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!

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!

According to this ECAM ELEC DC page:

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

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

There is no degradation in the capability of DC system.

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!

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!

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!

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 running.

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

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 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!

The APU battery:

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

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

Is dedicated to APU start only.

Correct! Wrong!

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

Automatic management of contactors.

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

TR contactors monitoring.

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!

What is the meaning of this ECAM?

Battery line contactor inoperative.

Charging current BAT1 increasing at abnormal rate.

Abnormal voltage.

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!

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

AC ESS.

AC 1-1 BUS.

AC 1-2 BUS.

Correct! Wrong!

According to this ECAM ELEC page:

APU GEN is failed.

APU GEN pb is set to Off.

APU is not running.

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!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

According to this ECAM ELEC page:

With APU GEN and external powers supplying the network:

According to these indications:

During EMER GEN automatic start up sequence:

When the MAINT BUS switch is on:

An engine generator is driven:

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

When ECAM shows "ELEC ECMU 1 FAULT":

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

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

What is the meaning of this ECAM?

Two Electrical Contactor Management Units (ECMU) provide:

According to this ECAM ELEC DC page:

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

What is the meaning of this ECAM?

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:

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

The MAINT BUS switch is located:

The APU battery:

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

Each engine generator supplies power to:

What is the meaning of this ECAM?

The main function of the MAINT BUS switch is:

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

According to this ECAM ELEC page:

The Emergency generator is powered by: