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 faulty.

BAT1 and BAT2 are not connected to the DC network.

Correct! Wrong!

According to this ECAM ELEC DC page:

There is no degradation in the capability of DC system.

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

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

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!

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!

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!

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!

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!

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!

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!

This ECAM ELEC page shows:

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.

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

Correct! Wrong!

What is the meaning of this ECAM?

TR 2 is faulty.

BAT 2 is faulty.

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

Correct! Wrong!

Each engine generator supplies power to:

The BUS on the opposite side in normal operation.

Only its assigned BUS in all cases.

Its assigned AC BUS in normal operation.

Correct! Wrong!

Two Electrical Contactor Management Units (ECMU) provide:

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.

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

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!

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

Loss of the corresponding AC or DC bus.

APU generator required operational.

No effects on flight management.

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!

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 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!

According to these indications:

EXT POWER is plugged, but is not available.

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

EXT POWER is not plugged and APU GEN is connected.

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!

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!

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

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

Automatic management of contactors.

TR contactors monitoring.

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?

Charging current BAT1 increasing at abnormal rate.

Battery line contactor inoperative.

Abnormal voltage.

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!

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!

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!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

According to this ECAM ELEC page:

According to this ECAM ELEC DC page:

An engine generator is driven:

What is the meaning of this ECAM?

The main function of the MAINT BUS switch is:

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:

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

The Emergency generator is powered by:

This ECAM ELEC page shows:

What is the meaning of this ECAM?

Each engine generator supplies power to:

Two Electrical Contactor Management Units (ECMU) provide:

When ECAM shows "ELEC ECMU 1 FAULT":

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

According to this ECAM ELEC page:

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

The APU battery:

According to these indications:

The MAINT BUS switch is located:

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

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

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

What is the meaning of this ECAM?

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

With APU GEN and external powers supplying the network:

During EMER GEN automatic start up sequence: