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

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

Electric supply to CB is normal.

There are no CB tripped or pulled.

No fault detected in Electronics Equipment Bay.

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 On and engine 4 is running.

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

Correct! Wrong!

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.

The TR 2 pb is set to OFF

Correct! Wrong!

The main function of the MAINT BUS switch is:

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.

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

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!

When the MAINT BUS switch is on:

Only the DC buses are powered.

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

The electric network supply is limited to Ground Service items.

Correct! Wrong!

The Emergency generator is powered by:

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.

The Static Inverter.

Correct! Wrong!

According to this ECAM ELEC page:

APU GEN pb is set to Off.

APU GEN is failed.

APU is not running.

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!

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!

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

Supply the landing gear.

Operate when the gear is extended.

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

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!

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!

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!

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!

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!

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!

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

Two engine generators.

One engine generator.

One engine generator and the EMER GEN.

Correct! Wrong!

The MAINT BUS switch is located:

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

On the overhead system panel in the cockpit.

On the FWD Circuit Breaker Panel behind the cockpit.

Correct! Wrong!

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

AC 1-1 BUS.

AC 1-2 BUS.

AC ESS.

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:

Its assigned AC BUS in normal operation.

The BUS on the opposite side in normal operation.

Only its assigned BUS in all cases.

Correct! Wrong!

According to this ECAM ELEC DC page:

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

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

There is no degradation in the capability of DC system.

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!

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!

What is the meaning of this ECAM?

Battery line contactor inoperative.

Abnormal voltage.

Charging current BAT1 increasing at abnormal rate.

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!

Airbus A340 - Electrical Power

Airbus A340 – Electrical Power

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

This ECAM ELEC page shows:

The main function of the MAINT BUS switch is:

According to these indications:

When the MAINT BUS switch is on:

The Emergency generator is powered by:

According to this ECAM ELEC page:

During EMER GEN automatic start up sequence:

When ECAM shows "ELEC ECMU 1 FAULT":

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

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

What is the meaning of this ECAM?

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

What is the meaning of this ECAM?

An engine generator is driven:

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

Two Electrical Contactor Management Units (ECMU) provide:

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

The MAINT BUS switch is located:

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

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

Each engine generator supplies power to:

According to this ECAM ELEC DC page:

With APU GEN and external powers supplying the network:

According to this ECAM ELEC page:

What is the meaning of this ECAM?

The APU battery: