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M11 Questions > 11.3 > Flashcards

11.3 Flashcards

1
Q

What is the purpose of balancing flight control surface?

A

To prevent surface from fluttering in flight

Example sentence: The balancing flight control surface helps stabilize the aircraft during flight.

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2
Q

How are cockpit fixed windows and windscreens installed?

A

Externally onto the aircraft frame structure

No additional information

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3
Q

What is the one purpose of a dorsal fin?

A

To join the fin smoothly to the fuselage

No additional information

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4
Q

What is the primary function of fuselage frames?

A

To maintain the shape of the fuselage and to carry and distribute shear and tension loads.

No additional information

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5
Q

What does the fuselage centre section provide?

A

It provides part of the cabin and the attachment structure for the wing centre boc and the main landing gear

No additional information

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6
Q

What is the function of a fuselage stringer?

A

It gives shape to the fuselage shell and can carry bending and shear, torsion and cabin pressure loads.

No additional information

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7
Q

What is the main function of a passenger door torque tube?

A

To rotate the door to the cocked position

No additional information

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8
Q

Which are the main functions of the passenger door mode selector?

A

To arm or disarm the emergency mechanism dependant upon which mode is selected

No additional information

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9
Q

What is the required maintenance action if the passenger door emergency power reservoir shows low pressure?

A

You remove the emergency power reservoir

No additional information

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10
Q

What is the purpose of the vent hole in the inner pane of cabin window?

A

To equalise the pressure between the two panes and the cabin

No additional information

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11
Q

Which cabin window pane normally supports the cabin pressurisation loads and what happens if it fails?

A

The load is taken by the outer pane, and if fails the inner pane can withstand the load.

No additional information

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12
Q

What is the biggest problem with the monocoque fuselage construction?

A

Maintaining enough strength in the skin and staying within weight limits.

Example sentence: The biggest problem with monocoque fuselage construction is ensuring that the skin is strong enough while keeping the weight within limits.

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13
Q

Which are the main structural components in an aircraft wing?

A

Ribs, spars stringers and skin

Additional information: The main structural components in an aircraft wing include ribs, spars, stringers, and skin.

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14
Q

Which loads are mainly carried to the fuselage structure by wing upper skin panels?

A

Compression

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15
Q

Which wing spar is normally used to attach the landing gear support arm?

A

Rear spar

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16
Q

How are skin panels that form exterior surface of the wing reinforced?

A

By stringers on the inner surface of the skin

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17
Q

What is the mainframe of the wing designed to do?

A

Transmit loads to the fuselage structure

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18
Q

Which wing components are normally used to attach the leading edge and trailing edge?

A

Vertical stiffeners attached wing spar webs

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19
Q

Which structural components are able to carry torsion, compression and shear loads, as well as giving shape to the wings and providing fuel tanks?

A

Ribs.

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20
Q

What does the construction of a typical horizontal stabiliser torque box consist of?

A

Spars, ribs, and skins

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21
Q

How can the front spar of the horizontal stabiliser be accessed?

A

Front the front by removing the removable leading edge.

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22
Q

Which of the following statements is true?

A

Stabilisers both vertical and horizontal are located outside of the fuselage pressurised area.

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23
Q

How are horizontal stabilisers normally constructed?

A

As either a single or 3 piece structure.

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24
Q

What is one purpose of the fixed trailing edge of the horizontal stabiliser?

A

To carry loads through to the center section.

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25
Q

What does the contruction of the vertical stabiliser consist of?

A

Forwarft and aft torque boxes, leading edges and tip

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26
Q

How are elevators attached to the aircraft?

A

They are hinged to the trailing edge of the horizontal stabiliser.

Example sentence: The elevators control the pitch of the aircraft.

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27
Q

How is the rudder attached to the aircraft?

A

It is hinged to the trailing edge of the vertical stabiliser.

Example sentence: The rudder controls the yaw of the aircraft.

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28
Q

Which parts on the wing are classified as flight controls?

A

Slats, flaps, spoilers, and ailerons.

Additional information: Flight controls are used to maneuver the aircraft during flight.

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29
Q

What is the purpose of a hinge sleeve on a control surface attachment?

A

To prevent overstress of the hinge forks when failsafe bolts are tightened.

Example sentence: The hinge sleeve ensures proper distribution of forces on the control surface.

30
Q

What is the purpose of the failsafe bolt on a control surface hinge?

A

To provide a safety method of maintaining structural integrity should one of the internal or external parts of the bolt be damaged.

Additional information: Failsafe bolts are critical for the safe operation of control surfaces.

31
Q

How is surface flutter eliminated?

A

By balancing using weights to arrange the cog with the hinge line.

Example sentence: Surface flutter can cause instability in flight.

32
Q

How are the engine pylons attached to the wing?

A

Front link and rear link located via a centre spigot.

Additional information: Engine pylons support the aircraft engines.

33
Q

What is the purpose of wings to nacelle fairings?

A

To provide an aerodynamic profile to reduce drag.

Example sentence: Nacelle fairings improve the airflow around the engine.

34
Q

Which statement is correct for the fan cowl support beam?

A

It supports the fan cowl and transmits the loads to the pylon torque box.

Additional information: The fan cowl support beam is essential for engine cowling structure.

35
Q

Which components go together to form a nacelle strut assembly?

A

Frames and external skin.

Example sentence: The nacelle strut assembly provides structural support for the engine housing.

36
Q

How is the aft pylon attached to the aircraft?

A

Via shackles attached to wing beams.

Additional information: Aft pylons play a crucial role in supporting the tail section of the aircraft.

37
Q

Which loads are transmitted by the pylon bearings?

A

Lateral and longitudinal loads between wing and pylon.

Example sentence: Pylon bearings help distribute the loads between the wing and engine pylon.

38
Q

What are the two main types of construction of a fuselage structure on modern aircraft?

A

Monocoque and semi-monocoque construction.

Additional information: The fuselage structure provides the main body of the aircraft.

39
Q

What is the function of the heating film on the windshield?

A

To provide an anti-icing and defogging system for the windshields.

Example sentence: The heating film helps maintain visibility during adverse weather conditions.

40
Q

What medium is used to open the doors in an emergency?

A

Pressurised gas.

Example sentence: In case of emergency, the doors can be opened using pressurised gas.

41
Q

What must you ensure before the cargo door is operated by hand pump?

A

Make sure that the selector valve lever is in the manual mode.

Additional information: Operating the cargo door manually requires the selector valve lever to be in the correct mode.

42
Q

What are the four types of external door classifications found on passenger aircraft?

A

Main entry, cargo, emergency, and service.

No additional information.

43
Q

What is the normal spacing for frames?

A

20 inches.

No additional information.

44
Q

What is the purpose of pressure bulkheads?

A

To withstand cabin pressure.

No additional information.

45
Q

What is the function of the horizontal stabiliser?

A

To provide pitch trim control.

No additional information.

46
Q

Following repairs to the flight control surface adjustments would need to be made to achieve what?

A

Static balancing.

No additional information.

47
Q

What is the purpose of a pylon?

A

To attach the engine to the airframe wing.

Example sentence: The pylon is responsible for securely connecting the engine to the wing.

48
Q

Which of the following components are part of the primary pylon structure?

A

Side panels, ribs, and spars.

Additional information: These components are essential for the structural integrity of the primary pylon.

49
Q

How many attachment points does the pylon have to the wing?

A

3

50
Q

What is injection sealing used for?

A

Sealing joggles and voids.

Example sentence: Injection sealing is used to prevent air or fluid leakage through gaps in the structure.

51
Q

What is the name given to aircraft main entry door seals that use cabin air pressure to inflate them?

A

Diaphragm seals.

Additional information: Diaphragm seals rely on cabin air pressure to create a tight seal when inflated.

52
Q

Passenger seat front and rear track fittings are locked into the seat rail because they are offset by?

A

Half the distance of the seat rail track spacing.

Example sentence: The offset ensures a secure and stable connection between the seat fittings and the rail.

53
Q

Where are the cargo loading system roll out devices fitted?

A

Cargo bay entrance.

Additional information: These devices are strategically placed at the cargo bay entrance for efficient loading and unloading.

54
Q

When would the flight crew compartment door automatically unlock?

A

When the cockpit depressurises.

Example sentence: The door is designed to unlock automatically in the event of cockpit depressurization for emergency access.

55
Q

In flight the lower skin panels on the wing carries mainly what type of loads?

A

Tension.

Additional information: The lower skin panels are designed to bear tension loads during flight.

56
Q

Which one of these creates a smooth join between fin and fuselage?

A

Dorsal fin.

Example sentence: The dorsal fin provides aerodynamic continuity and a seamless connection between the fin and fuselage.

57
Q

What is the rudder attached to?

A

Rear of vertical fin.

Additional information: The rudder is connected to the rear of the vertical fin to control yaw movements.

58
Q

Which of the following would allow the flight deck door to automatically unlock?

A

Flight deck decompression.

Example sentence: The door unlocking mechanism is triggered by flight deck decompression to ensure crew safety.

59
Q

When measuring the deflection angle of the elevator and before the elevator can be in the zero position what statement is true for the position of the movable stabiliser?

A

The movable stabiliser must also be in the zero position.

Additional information: Proper alignment of the movable stabiliser is crucial for accurate elevator deflection measurements.

60
Q

What is the purpose of a pylon?

A

To attach the engine to the airframe wing.

Example sentence: The pylon is responsible for securely connecting the engine to the wing.

61
Q

Which of the following components are part of the primary pylon structure?

A

Side panels, ribs, and spars.

Additional information: These components are essential for the structural integrity of the primary pylon.

62
Q

How many attachment points does the pylon have to the wing?

A

3

63
Q

What is injection sealing used for?

A

Sealing joggles and voids.

Example sentence: Injection sealing is used to prevent air or fluid leakage through gaps in the structure.

64
Q

What is the name given to aircraft main entry door seals that use cabin air pressure to inflate them?

A

Diaphragm seals.

Additional information: Diaphragm seals rely on cabin air pressure to create a tight seal when inflated.

65
Q

Passenger seat front and rear track fittings are locked into the seat rail because they are offset by?

A

Half the distance of the seat rail track spacing.

Example sentence: The offset ensures a secure and stable connection between the seat fittings and the rail.

66
Q

Where are the cargo loading system roll out devices fitted?

A

Cargo bay entrance.

Additional information: These devices are strategically placed at the cargo bay entrance for efficient loading and unloading.

67
Q

When would the flight crew compartment door automatically unlock?

A

When the cockpit depressurises.

Example sentence: The door is designed to unlock automatically in the event of cockpit depressurization for emergency access.

68
Q

In flight the lower skin panels on the wing carries mainly what type of loads?

A

Tension.

Additional information: The lower skin panels are designed to bear tension loads during flight.

69
Q

Which one of these creates a smooth join between fin and fuselage?

A

Dorsal fin.

Example sentence: The dorsal fin provides aerodynamic continuity and a seamless connection between the fin and fuselage.

70
Q

What is the rudder attached to?

A

Rear of vertical fin.

Additional information: The rudder is connected to the rear of the vertical fin to control yaw movements.

71
Q

Which of the following would allow the flight deck door to automatically unlock?

A

Flight deck decompression.

Example sentence: The door unlocking mechanism is triggered by flight deck decompression to ensure crew safety.

72
Q

When measuring the deflection angle of the elevator and before the elevator can be in the zero position what statement is true for the position of the movable stabiliser?

A

The movable stabiliser must also be in the zero position.

Additional information: Proper alignment of the movable stabiliser is crucial for accurate elevator deflection measurements.

M11 Questions (21 decks)

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