A300 Classic SKV Air Conditioning and Pressurization

Question 1

If one auto pressurization controller is deferred and the remaining one fails, how would the crew control aircraft pressurization?

Answer 1

Selecting the faulted controller OFF will force the pressurization system into manual control

Question 2

In the Air Conditioning System, what is the function of the Pack Temp MAN CTL selector?

Answer 2

Manual control of the Pack discharge temperature when MAN is illuminated white in the Pack MODE SEL pushbutton

Question 3

Where is the cold air from the air conditioning packs sent?

Answer 3

Cold Air Manifold

Question 4

In the Air Conditioning System, what supplies the air for the Hot Air Manifold?

Answer 4

Hot compressed bleed air tapped off prior to the packs

Question 5

In the Air Conditioning System, what component mixes the air from the Hot and Cold Air manifolds?

Answer 5

Trim air valves

Question 6

What would cause the blue RATE light on the overhead pressurization panel to illuminate?

Answer 6

The cabin pressure rate knob is out of the NORM position

Question 7

What air conditioning malfunction could cause an amber pack FAULT light?

Answer 7

A pack overheat or valve position disagreement with selected switch position

Question 8

What are the different levels of air conditioning pack flow?

Answer 8

Normal or ECON

Question 9

In the Air Conditioning System, what is the purpose of the ECON pushbutton switch?

Answer 9

Reduces airflow inflight to 68% normal flow (both engines operating) to increase fuel efficiency

Question 10

In the Air Conditioning System, what is the purpose of the MAX COOL pushbutton switch?

Answer 10

Lowers the lower limit of the pack discharge temp

Question 11

On the overhead air conditioning panel, if the compartment temp function is selected to CRT, what happens?

Answer 11

All compartment temperatures can be read on ECAM

Question 12

How many automatic cabin pressurization systems are installed?

Answer 12

2 systems, one active and one in standby

Question 13

During normal operation, what does the active pressurization system control to maintain cabin pressurization?

Answer 13

Outflow valves

Question 14

In the Pressurization System, how many motors are installed on each outflow valve?

Answer 14

Three, (Reg 1, Reg 2, manual)

Question 15

When would the Vent Overboard Valve normally be fully open?

Answer 15

On the ground, no engines running

Question 16

When you select the MAN PRESS switch, how does it affect the Aircraft Pressurization System?

Answer 16

The system is selected to manual, the V/S Switch becomes active and the ECAM pressurization display and the Cabin High Altitude warning are both lost

Question 17

In the Aircraft Pressurization System, what is the purpose of the Safety valves?

Answer 17

Protect against over or under pressurization of the aircraft

Question 18

In the Aircraft Pressurization System, what does the Amber LO delta P light indicate?

Answer 18

The pressurization system cannot keep up with descent rate of aircraft

Question 19

How many temperature zones are there in the Air Conditioning System?

Answer 19

Four - Cockpit, FWD cabin, MID cabin and aft cabin

Question 20

With both air conditioning packs operating, what is the pack outlet temperature control priority?

Answer 20

If the Flt Deck demands coldest temp, it controls pack 1

Question 21

With only one air conditioning pack operating, what controls the packs’s outlet temperature?

Answer 21

The operating pack outlet temp is controlled by whichever zone (cockpit or main deck) that requires the coolest air

Question 22

In the Aircraft Pressurization System, what automatically occurs when both outflow valves are selected OFF?

Answer 22

Ditching mode is activated

Question 23

In the Air Conditioning System, how are the lower FWD and AFT cargo compartments heated?

Answer 23

Indirectly heated by upper deck air, BULK cargo compartment is directly heated

Question 24

What occurs if the EXTRACT pushbutton on the VENT overhead panel is pressed in-flight?

Answer 24

OVBD light illuminates white and Overboard Valve partially opens, increasing the rate of ventilation

Question 25

In the Air Conditioning System, what is the purpose of the RAM air?

Answer 25

Used to ventilate cockpit and cabin in case of dual pack failure

Question 26

What three conditions will cause the residual pressure red warning light to flash?

Answer 26

Cabin pressure is present, at least one engine is shut down and the emergency evacuation slide is disarmed

Question 27

What is the primary purpose of the Pack Valves in the Air Conditioning System?

Answer 27

They function as both a shutoff valve and flow control valve

Question 28

When does the Pressurization System automatically switch controllers?

Answer 28

At 2nd engine start or when active system fails

Question 29

What does the Air Conditioning System supply to the Bulk Cargo Compartment?

Answer 29

Trim air plus air extracted from the main deck

Question 30

In the Pressurization System, what occurs when the second engine is started?

Answer 30

The active pressure control system automatically switches

Question 31

Where can hot air fro the Air conditioning System be supplied from?

Answer 31

The engine(s), APU, or a ground air cart

Question 32

What is the primary function of the Precooler?

Answer 32

Controls temperature of the engine bleed air entering the bleed air manifold