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Module 11B > 11.4.3 - Pressurisation - 4q > Flashcards

11.4.3 - Pressurisation - 4q Flashcards

1
Q

What position should the outflow valve be on the ground?

A
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2
Q

What should be observed (in terms of cabin pressure) during a cabin pressurisation check?

A
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3
Q

What do inward opening relief valves protect against?

A
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4
Q

What happens if the Coalesser bag is clogged?

A
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5
Q

Pressurisation system has a relatively what of cabin pressure?

A
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6
Q

Manual control of the pressurisation system is primarily provided for what?

A
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7
Q

Positive pressure occurs when? (cabin vs ambient)

A
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8
Q

Cabin pressurisation is controlled by what?

A
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9
Q

Cabin ROC should be what compared to Aircraft ROC?

A
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10
Q

What happens cabin pressure if the signal line between the controller and discharge valve is leaking?

A
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11
Q

Cabin ROC vs descent rate should be what

A
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12
Q

Cabin at 8,000 ft = PSI?

A
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13
Q

Aircraft at 36,000 ft = outside PSI?

A
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14
Q

When pressure testing an aircraft, should the internal doors be open or closed?

A
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15
Q

What step should be taken when doing a pressure test?

A
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16
Q

If the pressure controller is set to zero ft, what will happen?

A
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17
Q

Rate of change is most important during which phase of flight?

A
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18
Q

Rate of climb = _________________ / _________________

A
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19
Q

What should be done with pitot and static lines during a test?

A
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20
Q

Leakage from which part of the aircraft is undesirable and why?

A
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21
Q

If the cabin height is set lower than field height on the ground, what position will the outflow valve be in?

A
22
Q

What happens oxygen levels when air is pressurised?

A
23
Q

Rate of change of cabin pressure is selected by ? and controlled by ?

A
24
Q
A

No action taken, valve can be open or closed on the ground

25
Q
A

Decrease

26
Q
A

Both methods are acceptable

27
Q
A

By inward opening relief valve

28
Q
A

By a by-pass valve around the water separator

29
Q
A

Allow the cabin pressure to decrease within limits

30
Q

A pilot reports that ‘Cabin altitude continues to rise at top of climb’. What would a likely cause be:
1/ To much air from the air-conditioning system
2/ A stuck closed outflow valve
3/ A leak at a pressure seal at a door

A

3/ A leak at a pressure seal at a door

31
Q
A

Cabin altitude to decrease

32
Q

Cabin differential pressure is the difference between:
1/ 8,000 feet and sea level
2/ ISA conditions and true aircraft altitue
3/ Cabin pressure and ambient pressure

A

3/ Cabin pressure and ambient pressure

33
Q
A

A relatively low rate of change of cabin pressure

34
Q
A

The altitude corresponding to cabin pressure irrespective of the altitude of the aircraft

35
Q
A

Permit ground testing

36
Q
A

Decrease

37
Q
A

decrease

38
Q
A

the altitude of the cabin, equivalent to the pressure of the cabin

39
Q
A

controlling the amount of air released from the cabin

40
Q

Inward relief valves will operate when:
1/ depressurising the aircraft after descent
2/ cabin altitude exceeds aircraft altitude
3/ aircraft altitude exceeds cabin altitude

A

2/ cabin altitude exceeds aircraft altitude

41
Q
A

modulating to allow cabin pressure decrease

42
Q
A

The cabin rate of climb is less than the aircrafts ROC

43
Q
A

Set to manual or maintenance

44
Q

If an aircraft is flying at 40,000ft the pressurisation system maintains a cabin altitude of approx:
1/ seal level
2/ 36,000 ft
3/ less than 10,000 ft

A

3/ less than 10,000 ft

45
Q
A

outflow valve

46
Q
A

a constant mass airflow is allowed through cabin

47
Q
A

hypoxia/anoxia

48
Q

Packs deliver ______ air
Trim air valve deliver _____ air

A

Packs deliver cold air
Trim air valve deliver hot air

49
Q

What controls flow of air to the cabin:

A

Flow control valve

50
Q

RPM on an ACM is controlled by:

A

RPM on an ACM is controlled by the demand for cooling.

Module 11B (42 decks)

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