HYD

The fuel remaining in the surge tank scavenged into the adjacent cell, which is (A320):

The outer cell

Which type of motor controls the fuel x-feed:

Double

Where are the transfer valves located:

On the sealed rib of each wing tank (i.e. between each inner and outer cell)

What is the purpose of the pressure relief sequence valves:

When all pumps are running, center pumps will deliver fuel preferentially Signup and view all the answers

In normal operation, each engine is supplied by:

Two wing tank pumps and one center tank pump Signup and view all the answers

Is gravity feeding from center tank possible:

Yes Signup and view all the answers

The LP valves are controlled to the off position by:

Engine master switches and fire push buttons Signup and view all the answers

The normal tank filling order is:

Wing tanks then center tank Signup and view all the answers

The normal tank filling order is:

Wing tanks then center tank Signup and view all the answers

Amber fault light illuminates on tank pump P/B when:

The delivery fuel pressure drops Signup and view all the answers

Amber fault light illuminates on ‘mode sel.’ P/B when:

Center tank has more than 250 kg and any wing tank has less than 5,000 kg Signup and view all the answers

On the A320 CEO, the maximum fuel imbalance (inner tanks with heavier tank full) is:

1,500 kg Signup and view all the answers

The fuel used indication is automatically reset:

When the engine is restarted on the ground Signup and view all the answers

FOB (fuel on board) boxed amber on ECAM fuel page means

Both transfer valves in either wing tank fail to open when inner cell is at low level, or the center tank pumps are off Signup and view all the answers

Fuel on board half boxed amber on upper ECAM means:

The quantity shown is not fully usable (intercell valve failure or loss of ctr. tank pumps) Signup and view all the answers

If open when will the transfer valves close again:

Transfer valves close automatically at the refueling selection Signup and view all the answers

For what purpose is fuel used by the electrical system:

To cool the IDG oil Signup and view all the answers

APU fuel is supplied by:

Either main (AC) pumps or APU pump Signup and view all the answers

With slats extended, the center tank pumps run on ground:

Yes, after engine start for 2 mins Signup and view all the answers

What does the mode selector push-button control:

Center tank pumps only Signup and view all the answers

When the center tank is empty (mode auto), center tank pumps:

Stop automatically, 5 mins after low level is reached in the center tank Signup and view all the answers

What happens to the IDG cooling fuel when the outer cells are full?

Fuel overflows into the inner cell through a spill pipe Signup and view all the answers

What happens to the IDG cooling fuel when the wing tank is full?

The system selects center tank pumps off, wing tank pumps feed approx. 500 kg, and the center tank pumps run again Signup and view all the answers

Suction valves are:

Normally closed by pump pressure Signup and view all the answers

Why has a 2% additional space been provided in each fuel tank:

For fuel expansion without spillage into the vent surge tank Signup and view all the answers

During take-off the center tank fuel is:

Not supplied while slats are extended Signup and view all the answers

With fuel in all tanks (A320), in flight, fuel is used:

From the center tank, then from inner cells to a predetermined level when outer cell fuel combines with inner cell fuel Signup and view all the answers

In normal operation the crossfeed valve is:

Closed for take off Signup and view all the answers

Are the engines still supplied in case of fuel filter clog?

Yes, bypassing the fuel filter (crew awareness only) Signup and view all the answers

What is the minimum fuel quantity for take-off:

1,500 kg Signup and view all the answers

Normal hydraulic power is provided by:

Engine driven pumps for green and yellow, electric pump for blue, electric pump for yellow Signup and view all the answers

The power transfer unit is:

Reversible between green and yellow Signup and view all the answers

In flight, if blue electric pump fails, blue system:

Can be recovered by RAT Signup and view all the answers

With both engines stopped, how is it possible to pressurise the green system:

By the yellow electric pump and the PTU Signup and view all the answers

The RAT is automatically extended in case of:

Loss of engine and APU main generators Signup and view all the answers

On the ground the blue system is pressurised when:

One engine is running Signup and view all the answers

Engine 2 Hydraulic pump energises:

The yellow system pump and the green system via the PTU should the green system pump fail Signup and view all the answers

The yellow system comprises:

One engine driven pump, one electric pump, one hand pump Signup and view all the answers

The green hydraulic system can be pressurised by:

The No. 1 engine hydraulic pump or PTU Signup and view all the answers

The priority valves operate in case of:

Low hydraulic pressure Signup and view all the answers

The fire shut off valves shut off:

The yellow and green systems Signup and view all the answers

In case of blue electric pump failure, when the RAT MAN ON P/B on the HYD overhead panel is pressed:

The blue hydraulic system is pressurised by the RAT Signup and view all the answers

The hydraulic reservoirs are pressurised:

From the No. 1 engine or the pneumatic system Signup and view all the answers

In flight the engine 1 pump fault light illuminates amber in case of:

Reservoir low oil pressure, overheat, low pressure, or pump low pressure Signup and view all the answers

If on the ground with engine one stopped, does the engine one pump fault light illuminate amber due to green pump low pressure?

No Signup and view all the answers

In case of reservoir overheat, the fault lights of the faulty system stay on for:

As long as the overheat is detected Signup and view all the answers

HYD

Questions and Answers

The fuel remaining in the surge tank scavenged into the adjacent cell, which is (A320):

Which type of motor controls the fuel x-feed:

Where are the transfer valves located:

What is the purpose of the pressure relief sequence valves:

In normal operation, each engine is supplied by:

Is gravity feeding from center tank possible:

The LP valves are controlled to the off position by:

The normal tank filling order is:

The normal tank filling order is:

Amber fault light illuminates on tank pump P/B when:

Amber fault light illuminates on ‘mode sel.’ P/B when:

On the A320 CEO, the maximum fuel imbalance (inner tanks with heavier tank full) is:

The fuel used indication is automatically reset:

FOB (fuel on board) boxed amber on ECAM fuel page means

Fuel on board half boxed amber on upper ECAM means:

If open when will the transfer valves close again:

For what purpose is fuel used by the electrical system:

APU fuel is supplied by:

With slats extended, the center tank pumps run on ground:

What does the mode selector push-button control:

When the center tank is empty (mode auto), center tank pumps:

What happens to the IDG cooling fuel when the outer cells are full?

What happens to the IDG cooling fuel when the wing tank is full?

Suction valves are:

Why has a 2% additional space been provided in each fuel tank:

During take-off the center tank fuel is:

With fuel in all tanks (A320), in flight, fuel is used:

In normal operation the crossfeed valve is:

Are the engines still supplied in case of fuel filter clog?

What is the minimum fuel quantity for take-off:

Normal hydraulic power is provided by:

The power transfer unit is:

In flight, if blue electric pump fails, blue system:

With both engines stopped, how is it possible to pressurise the green system:

The RAT is automatically extended in case of:

On the ground the blue system is pressurised when:

Engine 2 Hydraulic pump energises:

The yellow system comprises:

The green hydraulic system can be pressurised by:

The priority valves operate in case of:

The fire shut off valves shut off:

In case of blue electric pump failure, when the RAT MAN ON P/B on the HYD overhead panel is pressed:

The hydraulic reservoirs are pressurised:

In flight the engine 1 pump fault light illuminates amber in case of:

If on the ground with engine one stopped, does the engine one pump fault light illuminate amber due to green pump low pressure?

In case of reservoir overheat, the fault lights of the faulty system stay on for:

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