Pressurization A320: DGCA Airbus A320 questions

Question 1

During ground function operation, the outflow valve is:

Accepted Answer

Fully open

Answer

Fully closed

Answer

Positioned accordingly to FMGS demands

Answer

Operating in abort mode

Question 2

In normal operation, pressurisation is:

Accepted Answer

Fully automatic

Answer

Manually controlled

Answer

Automatic, but landing elevation must be manually set

Answer

Remains automatic only with CPC 1 in use

Question 3

The pressure safety valve opens at:

Accepted Answer

8.6 psi

Answer

8.06 psi

Answer

9.0 psi

Answer

7.0 psi

Question 4

How is the MAN V/S CTL switch toggle used?

Accepted Answer

Due to slow outflow valve position, toggle switch must be maintained in up and down position until target V/S is reached

Answer

The switch actuation is very fast

Answer

As in (A) and switch should not be maintained in up or down position

Answer

As in (B) and if it is maintained in up outflow valve will open in 10 seconds

Question 5

Two safety valves are provided such that:

Accepted Answer

Each safety valve avoids excessive positive and negative differential pressure

Answer

One safety valve avoids excessive positive ΔP and another safety valve avoids excessive negative ΔP

Answer

Both safety valves avoid excessive positive ΔP only

Answer

Both safety valves avoid excessive negative ΔP only

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