Aircraft Avionics and Navigation Systems

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When does the 'Green Dot' disappear?

After first engine start

After passing 400 feet RA (correct)

After rotation

After second engine start

What is the condition for the green 'S' of the speedtape to be displayed?

Flap handle in position 1 and below FL80

Flap handle in position 0

Flap handle in position 1 (correct)

Flap handle in position 1 and above FL80

What happens to the Side Slip indicator when it becomes a beta target?

It turns orange

It turns yellow

It turns blue (correct)

It remains unchanged

When do the Flight Director bars flash?

All of the above Signup and view all the answers

When are the Flight Director bars out of view?

When bank angle exceeds 45° Signup and view all the answers

When does the Glide slope index flash continuously?

When deviation exceeds 1 dot above 120 feet RA Signup and view all the answers

What is the primary function of the ADIRS CDU?

Present position initialization Signup and view all the answers

What is displayed on the PFD according to the IR's information?

Heading, attitude, and vertical speed Signup and view all the answers

When Engine #1 is started and the APU is inoperative, what is the source of power for AC bus #2?

External power Signup and view all the answers

What is the duration of a normal IR alignment?

Approximately 3 minutes Signup and view all the answers

What is the meaning of the FAULT light on the RAT & EMER GEN pushbutton in cruise?

The RAT has failed. Signup and view all the answers

What does the extinguished IR ALIGN light indicate?

Alignment has been completed Signup and view all the answers

When are the Essential Shed buses powered by the battery?

In case of double generator failure. Signup and view all the answers

What is the source of power for the AC Essential bus above 50 kt?

The generator Signup and view all the answers

What is the meaning of an amber flashing IR FAULT light?

Attitude and heading information may be recovered in ATT mode Signup and view all the answers

What is the correct position of the PFD with respect to the ND?

The PFD should be outboard and the ND should be inboard Signup and view all the answers

What is the function of the STATIC INVERTER?

To power the ESS DC and ESS AC Signup and view all the answers

What is the function of the ESS DC SHED and ESS AC SHED?

To reduce the load on the batteries. Signup and view all the answers

What happens to generator #1 when the C switch is selected OFF?

It is removed from all busses but continues to power one fuel pump in each wing Signup and view all the answers

What would happen after the loss of Gen #2 and the start of the APU?

Eng gen #1 continues to power AC bus #1 and downstream systems. The APU powers AC bus #2 and downstream systems Signup and view all the answers

When does the RAT automatically deploy?

Electrical power to both AC BUS #1 & #2 is lost and the aircraft speed is above 100 knots Signup and view all the answers

What powers the essential systems during the 5 seconds it takes for the RAT to extend?

The BATTERIES power both BATT HOT busses, ESS DC SHED, and ESS AC SHED through the STATIC INVERTER Signup and view all the answers

What is the purpose of the AUTO BUS TIE?

To allow either engine-driven IDG to automatically power both main AC buses in the event of a generator loss Signup and view all the answers

When will the RAT & EMER GEN red FAULT light illuminate?

When the EMER GEN is not supplying electrical power, AC busses #1 & #2 are unpowered and the nose gear is up Signup and view all the answers

What happens to all valves that could supply pneumatic air to the area of the bleed leak if a BMC detects a bleed leak?

They automatically close. Signup and view all the answers

What happens if one BMC fails?

The adjacent BMC takes over the monitoring of the bleed system to issue ECAM warnings if necessary. Signup and view all the answers

What provides bleed leak protection for the APU pneumatic duct?

Detection loops associated with BMC #1 and BMC #2. Signup and view all the answers