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

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

No fault detected in Electronics Equipment Bay.

Electric supply to CB is normal.

There are no CB tripped or pulled.

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 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!

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!

The MAINT BUS switch is located:

On the overhead system panel in the cockpit.

On the FWD Circuit Breaker Panel behind the cockpit.

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

Correct! Wrong!

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

The TR 2 pb is set to OFF

The TR 2 is faulty, DC 2 BUS is powered by TR 1 through DC 1 and DC BAT BUS.

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!

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

AC 1-2 BUS.

AC ESS.

AC 1-1 BUS.

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!

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!

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!

The Emergency generator is powered by:

A Ram Air Turbine (RAT).

The Static Inverter.

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

Correct! Wrong!

According to this ECAM ELEC page:

BAT1 and BAT2 are faulty.

BAT1 and BAT2 are not connected to the DC network.

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

Correct! Wrong!

According to this ECAM ELEC page:

APU is not running.

APU GEN pb is set to Off.

APU GEN is failed.

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!

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!

What is the meaning of this ECAM?

There is an engine generator fault.

There is an ECMU fault.

There is a TR overload.

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!

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!

With APU GEN and external powers supplying the network:

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

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

APU supplies AC ESS only.

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!

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.

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.

Correct! Wrong!

What is the meaning of this ECAM?

Abnormal voltage.

Charging current BAT1 increasing at abnormal rate.

Battery line contactor inoperative.

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!

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!

Each engine generator supplies power to:

Its assigned AC BUS in normal operation.

Only its assigned BUS in all cases.

The BUS on the opposite side in normal operation.

Correct! Wrong!

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

Two engine generators.

One engine generator and the EMER GEN.

One engine generator.

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!

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 APU battery:

According to this ECAM ELEC DC page:

The MAINT BUS switch is located:

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

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

The main function of the MAINT BUS switch is:

An engine generator is driven:

According to these indications:

The Emergency generator is powered by:

According to this ECAM ELEC page:

According to this ECAM ELEC page:

What is the meaning of this ECAM?

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

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:

When ECAM shows "ELEC ECMU 1 FAULT":

With APU GEN and external powers supplying the network:

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

During EMER GEN automatic start up sequence:

What is the meaning of this ECAM?

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

Two Electrical Contactor Management Units (ECMU) provide:

Each engine generator supplies power to:

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

When the MAINT BUS switch is on: