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APU MASTER SW pb-sw - This pushbutton controls the electric supply for APU operation, and its protective features. It also controls the start and shutdown sequences. This amber FAULT light comes on, and a caution appears on the ECAM, when an automatic APU shutdown occurs. In case of automatic, non emergency shutdown, the air inlet flap closes _____ after the APU speed is lower than 7 %.

Correct! Wrong!

If an automatic, non-emergency shutdown happens on ground, the 15 min countdown starts after liftoff.

APU master switch - The Amber FAULT light comes on, and a Caution is displayed on the ECAM. What does it mean?

Correct! Wrong!

Before the APU starter is energized:

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The AVAIL Indication is in green, when APU rpm (N) is _____.

Correct! Wrong!

In flight, in case of APU fire:

Correct! Wrong!

The ECB (Electronic Control Box) controls the electric starter. The starter engages if the air intake is fully open and provided the MASTER SW pushbutton is ON.

Correct! Wrong!

The ECB (Electronic Control Box) controls the electric starter. The starter engages if the air intake is fully open and provided the MASTER SW and the START pushbuttons are ON.

Which one of the following statements is true?

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The ECB (Electronic Control Box) controls the APU BLEED valves. If APU BLEED is set to ON, the bleed valve closes at _____ when climbing, and reopens at _____ when descending.

Correct! Wrong!

During takeoff and go-around, the APU can supply pneumatics:

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The APU is supplied from the trim tank transfer line. The ECB (Electronic Control Box) controls the fuel flow.

Correct! Wrong!

In case of APU fire on ground:

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On APU External Power panel (under the nose fuselage), the ground staff can:

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On ground with no GPU, APU start procedure requires:

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APU start is permitted throughout the normal flight envelope, except when APU battery only is supplying.

Airbus A330
Correct! Wrong!

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The APU may obtain power for starting from the batteries specifically assigned to the APU, or in combination with the external power, or normal aircraft supply.

Correct! Wrong!

Airbus A330 – APU