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

An engine generator is driven:

Direct from the Accessory Gear Box (AGB).

By an Integrated Drive Generator (IDG).

At a ratio of 5 to engine speed.

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!

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!

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

AC ESS.

AC 1-1 BUS.

AC 1-2 BUS.

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!

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!

What is the meaning of this ECAM?

Battery line contactor inoperative.

Charging current BAT1 increasing at abnormal rate.

Abnormal voltage.

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!

According to this ECAM ELEC page:

APU is not running.

APU GEN is failed.

APU GEN pb is set to Off.

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!

The main function of the MAINT BUS switch is:

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

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.

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!

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!

What is the meaning of this ECAM?

TR 2 is faulty.

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

BAT 2 is faulty.

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!

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 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

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

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!

With APU GEN and external powers supplying the network:

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

APU supplies AC ESS only.

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

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!

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

AC ESS BUS.

AC 2-4.

AC 1-1.

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!

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!

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 ECMU fault.

There is a TR overload.

There is an engine generator fault.

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!

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!

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!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

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:

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

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

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

According to this ECAM ELEC page:

What is the meaning of this ECAM?

When ECAM shows "ELEC ECMU 1 FAULT":

According to this ECAM ELEC page:

The Emergency generator is powered by:

The main function of the MAINT BUS switch is:

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

During EMER GEN automatic start up sequence:

What is the meaning of this ECAM?

Two Electrical Contactor Management Units (ECMU) provide:

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

The MAINT BUS switch is located:

With APU GEN and external powers supplying the network:

According to this ECAM ELEC DC page:

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

Each engine generator supplies power to:

When the MAINT BUS switch is on:

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

What is the meaning of this ECAM?

According to these indications:

The APU battery:

This ECAM ELEC page shows: