Which condition is sufficient to close the entry corridor ?

A. Prevent fuel entering the vent lines.

B. Allow fuel to drain from the vent lines.

C. Maintain the fuel tanks pressurized.

A. The oil flows through the bypass valve and the backup filter.

B. The IDG oil temperature increases.

C. The engine oil temperature incresases.

A. In closed position.

B. In open fail safe position.

C. Either in closed or open position, depending on the last operating conditions.

A. A re-centering and active mode.

B. A re-centering and damping mode.

C. An active and damping mode.

A. GCU.

B. BCL.

C. Static inverter.

A. To stop the flow in case of leakage.

B. To shut off the return lines.

C. To separate the Normal form the Alternate Servovalves.

A. By the HP rotor.

B. By the LP rotor.

C. By the HP rotor via the transfer gearbox.

A. The TLA

B. The ground logic

C. The N2

A. During ECS Operation.

B. During Main Engine Start.

C. On ground.

A. When both LOC and G/S signals have failed.

B. When ILS frequency is not available.

C. A and B.