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M11 R > M11.3 > Flashcards

M11.3 Flashcards

1
Q

How far apart are frames normally positioned?

A

20 inches

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2
Q

Where is the keel beam located?

A

The centre wing section of the fuselage

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3
Q

Where does the maximum bending take place?

A

The wheel well area

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4
Q

What is the keel beam made up of?

A

Compression chords and stiffeners

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5
Q

When are pressure seals used?

A

When cables or rods need to pass through pressure bulkheads

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6
Q

Why do cabin doors have seals?

A

To prevent depressurisation and water getting in

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7
Q

What are the two types of seals fitted to doors?

A

Flap type and diaphragm

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8
Q

What inflates the door seals when its closed?

A

Cabin pressure

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9
Q

Why are ball mats used in the cargo bay?

A

For omni-directional handling

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10
Q

How are doors classified?

A

By there functions

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11
Q

What are the doors on the left hand side used for?

A

Passengers

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12
Q

What are the doors on the right hand side used for?

A

Servicing

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13
Q

When would a nose or side cargo door be used?

A

For loading the main deck

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14
Q

Where would a side cargo door be located?

A

The aft left side of the fuselage

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15
Q

What does the door lower lining cover?

A

The escape slide or survival kit

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16
Q

What does the doors centre lining cover?

A

The door structure and lath mechanism

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17
Q

What does the door upper lining cover?

A

Also door structure and latch mechanism however it also holds the escape lamp

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18
Q

What gas is used in the doors?

A

Nitrogen

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19
Q

At what angle does the slide inflate after being activated by the door?

A

Approximately 60°

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20
Q

What is a over wing escape hatch know as?

A

Plug doors

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21
Q

Why must a over wing escape hatch be pulled inwards?

A

Because its bigger than the aperture it fills

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22
Q

What position should the flight deck door be in when in flight?

A

Always locked unless someone needs entry

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23
Q

What is located in the lower half of the flight deck door?

A

Decompression and evacuation flap

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24
Q

What is used to operate the cargo doors?

A

Electrics or hydraulics

25
Q

What is special about the bulk cargo door?

A

It opens inward and manually

26
Q

How much differential pressure will force the vent door to open on the cargo doors?

A

One pound per inch sacred

27
Q

What is meant by e-pump?

A

The system gets pressurised by an electric pump

28
Q

What is meant by hand-pump?

A

The system is pressurised by hand pumping

29
Q

Why are two windows used?

A

For fail safe

30
Q

How are flight deck windows numbered?

A

One left, two left, etc

31
Q

What are the forward two flight deck windows called?

A

Flight deck windscreen

32
Q

What is used to bond all the window layers together?

A

Polyurethane

33
Q

Where is the heating film located in the flight deck windows?

A

On the inner surface of the outer plane

34
Q

What type of window is installed from inside?

A

The sliding windows

35
Q

What type of windows are installed from the outside?

A

The fixed windscreens

36
Q

What is placed between the window and frame?

A

A silicon seal

37
Q

How is the cabin window attached to the aircraft?

A

Riveted to the inner surface of the fuselage skin

38
Q

Why do the inner cabin window have a hole in it?

A

It makes sure that the pressure between the panes is the same as the cabin pressure

39
Q

What are the three main areas of the wing structure?

A
  • left wing box
  • centre wing box
  • right wing box
40
Q

What is the top of the wing made from?

A

Aluminium-zinc alloy

41
Q

What is the bottom of the wing made from?

A

Premium-copper alloy

42
Q

What is the landing gear support arm also known as?

A

The false rear spar

43
Q

What is the leading edge nose cap (slat) made from?

A

Aluminium

44
Q

What is the dorsal fin used for?

A

To connect the fin to the fuselage

45
Q

Why do hinges have an inner and outer bolt?

A

Just in case one fails

46
Q

How many sleeves does a normal hinge have?

A

2

47
Q

How many sleeves does a primary hinge have?

A

1

48
Q

How is surface flutter created?

A

By the comparison of gravity and air-loads

49
Q

How is surface flutter prevented?

A

By static balancing or If its hydraulically powered

50
Q

How does static balancing work?

A

Weights are added in front of the hinge line

51
Q

What is the deflection angle measured in relation to?

A

The zero position

52
Q

What is meant by the zero position?

A

When its back to its original position

53
Q

What is used to measure the deflection angle?

A

An inclinometer

54
Q

What is the main function of a pylon?

A

To carry all the loads from the engine to the torque box

55
Q

How many attachment points are there on a torque box (pylon)?

A

3 (2 forward and 1 aft)

56
Q

How is the power plant divided into cooling zones?

A

By fireproof bulkheads

57
Q

What is the engine inner firewall assembly made from?

A

Steel or titanium

58
Q

How many engine mounts are there?

A

2 (forward and aft)

59
Q

How many connections does each engine mount have?

A

3

M11 R (21 decks)

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