If a throttle is set between two detents; the FADEC selects the rating limit:

Determined by the throttle position.

Corresponding to the higher mode.

Corresponding to the lower mode.

When the A/THR system is in use:

The throttles move automatically according to FADEC commands.

The throttles can only be moved manually.

The throttles will move when the A/THR p/b is used.

If an A/THR disconnect switch is pushed and held for more than ______ seconds; the A/THR system is disconnected for the remainder of the flight; including the _______.

15 Seconds - Alpha floor Protection

10 Seconds - Alpha floor Protection

12 Seconds - Alpha floor Protection

18 Seconds - Alpha floor Protection

When is T.O. INHIBIT and LDG INHIBIT active?

TO 1500 feet AGL, LND below 750 feet AGL.

TO 750 feet AGL, LND below 1500 feet AGL.

TO 1000 feet AGL, LND below 1000 feet AGL.

TO 1500 feet AGL, LND below 1000 feet AGL.

How many thrust lever positions are there, and how are they labeled?

There are 4 thrust levers positions: TO/GA, FLX/MCT, CL, IDLE.

There are 6 thrust levers positions: TO/GA, MCT, FLEX, CL, IDLE and REV IDLE.

There are 6 thrust levers positions: TO/GA, FLX/MCT, CL, IDLE, REV IDLE and MREV.

You are just about to take off. You have not inserted a FLEX temperature. Can you still takeoff?

Yes, but only using the TO/GA detent.

Yes, by setting the thrust levers to the CLIMB detent.

Yes, by setting the thrust levers to the FLEX/MCT detent.

Not until a FLEX temperature is inserted.

During an engine start sequence, the gray background on N2 disappears at about 57%. What does this indicate?

That the start sequence has finished and all engine parameters have stabilized.

That the igniters are no longer being powered.

That the start valve air pressure has dropped.

That there is a start fault and a dry crank is in progress.

What does the FLEX represent in the FLX/MCT detent?

This is a reduced thrust setting used for takeoff.

This is the maximum continuous thrust setting for single-engine operations.

This is the thrust setting that should be chosen in the case of a single-engine go-around.

This is a derated thrust according the ground temperature of the day.

How many FADEC’s are installed in the aircraft?

One, shared between both engines.

Three, one for each engine and one backup.

None, the aircraft does not use FADEC.

What is required for the FADEC to compute a reduced thrust setting?

A FLEX temperature must be entered on the TAKE OFF PERF page of the MCDU.

A FLEX temperature must be entered on the INIT page of the MCDU.

Nothing, it is an automatic function of the FADEC.

Using manual thrust, the thrust lever position will determine the thrust setting for the engine.

True. They will operate like conventional throttles.

True, but care must be taken not to overspeed the engines.

False, the next higher detent will be the thrust limit.

What is considered to be the active range of the A/THR system?

During single engine operations from just above the IDLE stop to the FLX/MCT detent.

During two engine operations from just above the IDLE stop to the CL detent.

If the thrust levers are set in the idle detent, is Alpha floor protection still available?

Yes. Thrust lever position is disregarded.

No. Alpha floor is not available in idle detent.

Only available above idle detent.

Available only during takeoff roll.

Is there any mechanical linkage between the thrust levers and the engines?

There is a mechanical linkage in case the ECU fails.

No, it is electrically powered and hydraulically actuated.

What is Alpha floor protection?

It helps prevent the aircraft from stalling and protects against windshear encounters during takeoff and approach.

It is a function of the flight control laws to prevent the aircraft from stalling.

It helps prevent the aircraft from stalling by limiting the angle of bank at low airspeeds.

It helps prevent the aircraft from stalling by limiting the angle of climb at high airspeeds.

Alpha floor protection is available:

From lift off and down to 100 feet radio altitude in the landing configuration.

From lift off and down to 50 feet radio altitude in the landing configuration.

From lift off and down to 500 feet radio altitude in the landing configuration.

From lift off and down to 750 feet radio altitude in the landing configuration.

How do you arm the A/THR in flight?

A/THR switch ON when throttles are in the engagement mode.

A/THR switch ON when throttles are not in the engagement mode.

What is the difference between variable thrust and the speed mode?

In the fixed thrust mode, thrust is fixed and the elevator controls the speed.

In the variable thrust mode, thrust is fixed and speed is controlled by the elevator.

In the fixed thrust mode, thrust is variable and speed is controlled by the elevator.

The left column, first line of the FMA is used to indicate:

If A/THR is off, armed, or active.

The mode of the A/THR in use when A/THR is armed or active.

What are the two basic modes of the A/THR system?

Variable thrust and fixed speed.

Can the engines be overboosted in the TOGA position?

No, because the ECU provides engine protection limit by monitoring N1, N2, and HMU fuel flow adjustments.

Yes, if the autothrust function is not active.

No, because the EIU is responsible for monitoring N1 and N2.

How can A/THR be ARMED automatically?

Whenever a takeoff or go-around is initiated with at least one flight director ON.

When Alpha floor protection is activated.

During a manual start, how is the start valve opened?

By depressing the ENG MAN START pushbutton’s on the overhead panel while the ENG MODE selector is out of the NORM position.

It is automatic once the ENG MASTER is placed to the ON position.

By depressing the ENG MAN START pushbutton’s on the overhead panel.

When does oil quantity indication begin to pulse?

Oil quantity detector or pressure fault.

Does the FADEC provide EGT limit protection constantly?

No, EGT limit protection is only available during ground auto starts.

No, EGT limit protection is only available during ground auto starts and single-engine operations.

Auto Thrust System: When are the throttles in the engagement range?

Both throttles are above idle but not above the CLB detent when both engines are running.

A single throttle of an operating engine is above idle but not above the MCT detent when one engine is running.

The idle setting on the aircraft is capable of modulating due to certain conditions. During descent, what might cause the IDLE N1 setting to increase?

For a higher than normal bleed air demand or warmer than normal engine oil temp in flight.

Verification that Autothrust (A/THR) is active can be made by:

Watching the automatic movement of the thrust levers.

Only when the thrust levers are set at TOGA.

Only by looking at column five of the FMA.

Holding the instinctive disconnect push button’s for more than fifteen seconds will:

Disengage the A/THR (including Alpha Floor) for the remainder of the flight.

Disengage the A/THR (including Alpha Floor) until below 1000 feet AGL for the remainder of the flight.

Disengage the A/THR (including Alpha Floor) until below 500 feet AGL for the remainder of the flight.

Disengage the A/THR (excluding Alpha Floor) for the remainder of the flight.

During the automatic start sequence of ENG 2, you notice that only igniter B is powered. Is it normal?

Yes, igniters are used alternately for engine start.

Yes, igniter A is only used for engine anti-ice.

No, normally both igniters are used for all engine starts.

Yes, igniter B is always used for ENG 2 start.

As far as FMA annunciations are concerned, what would indicate that the A/THR system is active?

The FMA displays 'A/THR' in green.

The FMA displays 'A/THR' in white.

The FMA displays 'A/THR' in amber.

The FMA displays 'A/THR' in blue.

Which of the following statements about SPEED and A/THR indications is correct?

A: “SPEED” appears in green in column one, line one.

B: “A/THR” changes from blue to white as shown in column five, line three.

C: “A/THR” changes from white to blue in column five, line one.

D: “SPEED” appears in amber in column one, line one.

If a thrust lever is set between two detents, the FADEC selects the rating limit corresponding to the higher limit.

True. This limit is displayed on the upper ECAM.

False. For safety reasons, it always selects the rating limit corresponding to the lower limit.

What would happen during the takeoff roll if the thrust levers were set to the FLX/MCT detent without FLEX temperature being entered?

Nothing, the thrust setting would be at FLEX since FADEC automatically calculates a reduced thrust setting.

The thrust setting would be MCT and there would be no corresponding warnings.

A LEVEL TWO warning would sound along with the appearance of an ECAM message.

What abnormals would cause the FADEC to automatically abort a start?

A hot start, an overtemp, a stalled start or no liftoff.

A hot start, a stalled start, an overtemp or APU underspeed.

A hot start, an overtemp or an engine overspeed.

During an in-flight start or a manual start, will the FADEC auto abort for an abnormal?

Yes. It will for an in-flight start (but not for a manual start).

Where is the thrust reduction altitude found and is the number always the same?

Column four, row three of the FMA. It will always be 1500 ft. AGL.

TAKE OFF PERF page of the MCDU (it can be modified).

During a manual start, what function does the FADEC perform?

Passive monitoring of the start sequence, to close the start valve and cut off the ignition on the ground.

To control the start sequence and take corrective action in case of a failure or malfunction.

The FADEC does not perform any function during a manual start and all actions have to be carried out by the pilots.

Airbus A320 Engine

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Airbus A320 Engine

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Practice Problem

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66 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Full Authority Digital Engine Control (FADEC) controls which of the following functions:

Fuel metering

Engine limits

Automatic and manual starting.

All of the above.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The FADEC is normally powered by:

The RAT

Its own magnetic alternator

The normal aircraft electrical system

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During an automatic start sequence; selecting the ENG MASTER switch to on:

Closes the pack valves.

Initiates the start sequence.

Displays the ECAM engine page.

First two statements are correct

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The FADEC has control during a manual engine start sequence except for:

The high pressure fuel valve.

The start valve.

An automatic abort.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Continuous ignition is automatically provided during the following:

Takeoff, landing, and flight through heavy precipitation or turbulence

Cruise at high altitude

Taxiing on the ground

Engine shutdown procedures

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Flex or TO/GA thrust is selected on the ground.

ENG ANTI ICE switch is ON

Engine surge or stall occurs in flight.

Any of the above.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The A/THR is armed on the ground provided at least one FD is on by:

Setting the throttles to TO/GA.

Automatically at engine start.

With engines running; pressing the A/THR p/b manually.

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Airbus A320 Engine

66 questions

The Full Authority Digital Engine Control (FADEC) controls which of the following functions:

The FADEC is normally powered by:

During an automatic start sequence; selecting the ENG MASTER switch to on:

The FADEC has control during a manual engine start sequence except for:

Continuous ignition is automatically provided during the following:

Flex or TO/GA thrust is selected on the ground.

The A/THR is armed on the ground provided at least one FD is on by:

If a throttle is set between two detents; the FADEC selects the rating limit:

When the A/THR system is in use:

A/THR engagement is confirmed when “A/THR” is displayed in the right column of the FMA.

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