Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Cat B- Mod 11 Aircraft Systems > 11.3 Structures Aeroplanes > Flashcards

11.3 Structures Aeroplanes Flashcards

1
Q

What types of aircraft fuselage construction are there?

A

Truss
Monocoque
Semi-monocoque

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a truss type construction?

A

Several members are joined together to form a rigid structure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a defining characteristic of the pratt truss?

A

The struts only carry compressive loads while the stays only carry tension loads.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

In a warren truss construction the longerons are solely connected with?

A

Diagonal methods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What construction do most pressurised aircraft have?

A

Semi-monocoque

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the cyclic loading lead to in pressurised airframes?

A

Metal fatigue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What two methods are there of applying a seal to the an aircraft fuselage?

A

Faying
Fillet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a faying seal?

A

Two pieces of metal overlap and a bead of sealant is place in between, riveted and then smoothed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a fillet seal?

A

When two pieces of metal are joined together.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the frame mate?

A

Where fittings or lugs are mounted for wing attatchment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are pylons also known as?

A

Spars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What force does the pylon transmit?

A

Thrust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How are crew seats installed?

A

Using quick release fasteners in tracks that are L tracks or I tracks.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is cargo moved in and out of the aircraft?

A

Tracks, rollers and PDU’s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What cargo loading system components are there?

A

Transport
Guidance
Restraining and locking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are transport components?

A

Ball mats, ball trays, roller rails.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are guidance components?

A

Guide rails, side guides, centreline splitters, door guides.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are restraining and locking components?

A

Cargo locks, outboard and centreline restraints and forward and end stops.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is a ULD?

A

The containers used in a cargo bay.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does ARO stand for?

A

Anti rollout device.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is an anti rollout device?

A

Automatically lifts to prevent the ULD from coming back out.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When does the loading system receive electrical power?

A

When the cargo door is fully open.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is a MED?

A

Main entry door

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What type is a MED?

A

Plug type

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What type are service doors?
Non-plug type.
26
What type are cargo doors?
Non-plug type
27
What is a plug door?
Designed to seal itself by utilising the pressure difference.
28
What are the doors on the left side of an aircraft used for?
Passenger entry.
29
What does the door structure house?
The opening, locking and emergency mechanisms.
30
What does the door structure consist of?
Frame Beams Formers Intercostals
31
What does the door frame house?
The pressure stop fittings.
32
How does the door frame stop lock the door shut when the cabin is pressurised?
With a pressure stop pin
33
Is the pressure stop pin adjustable?
Yes
34
How do inflatable door seals work?
They have small holes cabin side that inflate the seal.
35
What are door seals made of?
Cloth and glass-fibre reinforced silicon rubber.
36
What are the common types of seal shapes?
Bulb Diaphragm Flat Multiform
37
In a door latch mechanism how is the rotation of the torque tubes transmitted?
Control rods
38
For larger aircraft, ICAO Annex 6 Chapter 13.2.2 states: ?
Aircraft that are 500kg TOM or 60 pax shall have a locked flight deck door.
39
What is a CDLCU?
Cockpit door lock control unit.
40
What is in the bottom half of the cockpit door?
Decompression and evacuation flap
41
How many emergency exits are required?
Depends on the pax numbers.
42
Why is it important to pay attention to the cabin pressure indicators?
As they could warn the outflow valves are closed and therefore cabin pressure is still elevated.
43
What does a girt bar do?
Activate the door slide.
44
What are bar locks?
Either end of the girt bar, they lock it into the floor brackets.
45
What is the bulk cargo compartment for?
Non-containerised cargo such as loose luggage.
46
What does the door lift mechanism consist of?
Lift power unit Gearbox Brake assemblies Rotary actuators
47
What are door prox sensors for?
Ensure they are locked for flight
48
What does the flight deck indicate the door statuses of?
Equipment centre access doors PEDs Cargo
49
When a passenger entry door is closed, latched, and locked, these letters (in colour) show the position of the mode select handle?
A - auto (green) M - manual (white)
50
Windows, give visibility and hold pressure what do they also do?
Protect against bird impact and ice build up.
51
On transport aircraft what type are the windows?
Plug type, two layers.
52
What is the little hole for in cabin windows?
Pressure equalling.
53
On most modern aircraft how many flight deck windows are there?
Six
54
What are the two forward flight deck windows known as?
Windscreen
55
What is the retainer in flight deck windscreens?
Frame that attaches to the frame on the fuselage.
56
What types of damage are found on flight deck window?
Delam and bubbles Chips, cracking or scratches.
57
How do you look for delam in windows?
Look from an angle.
58
What is the max allowable delam?
3.5 inches (89mm)
59
What are bubbles in the vinyl layer of glass a sign of?
Issue with the window heater system.
60
In what type of glass do v scratches rarely happen?
Chemically tempered glass.
61
What is the max limit for scratch depth on a windscreen?
0.0002 in or 0.051mm
62
What is crazing?
Small cracks that often look like white clouding.
63
What is in-plane cracking?
Smooth surface fissures, occurs in stretched acrylic.
64
What design are the majority of modern wings?
Cantilever
65
Wing support cables that are vertical are called what?
Jury struts
66
What three types of wing construction are there?
Mono-spar Multi-spar Box Beam
67
What are the principle structural members of the wing?
Spars
68
In a common I beam spar, what is the top and bottom called?
Caps and web.
69
What is a sine wave web?
A web that is curvy.
70
What is a false spar?
Spars that do not extend the whole length of the wing.
71
What are false spars often used for?
Hinge attach points for control surfaces.
72
What are nose or false ribs?
Ribs at the front of the wing used to shape and strengthen.
73
What is a butt rib?
Found inboard where the wing attaches to the fuse.
74
What are the three basic tank types?
Rigid removable Flexible bladder Integral
75
What aircraft use rigid removable tanks?
Light aircraft
76
What are rigid tanks made of?
3003 or 5052 aluminium alloy
77
What is terneplate?
Thin steel sheet coated with lead or tin alloy.
78
How were terneplate tanks construcuted?
Folded and soldered seams.
79
What is key about the soft flexible nature of a bladder tank?
They must remain wet.
80
What are aircraft with integral tanks called?
Wet wings
81
Where is the landing gear attachment point?
Rear spar
82
What is a fixed stabiliser?
Tailplane, two aerofoils that can't move.
83
What is a stabilator?
One piece all moveable but no elevator
84
What is a variable incidence tailplane?
One piece moveable with elevators.
85
What forces are felt on a stabiliser?
Bending, torsion and shear.
86
Where are ailerons attached too?
Wing rear spar
87
Where are the elevators attached too?
Horizontal stab rear spar
88
How is the rudder attached?
To the vertical stab rear spars.
89
What sort of safety precautions are there when working on flight controls?
Comms Signs Gags Tools
90
What does balancing of flight controls help with?
Eliminate flutter
91
What are two common methods of balancing flight controls?
Horn balancing Mass balancing
92
What is horn balance?
When a section of the flying control is extended beyond the hinge.
93
What is mass balancing?
Adding mass to the LE of the control
94
What is the moment arm?
Weight x distance from hinge
95
What is a nacelle?
The shell around an engine.
96
Which part of the pylon is primary structure?
Torque box
97
What forces does the forward pylon attachment transmit?
Weight and lateral loads
98
What forces does the aft pylon attachment point transmit?
Weight and longitudinal.
99
What do modern nacelles feature?
Noise reduction technologies.
100
What are the fan cowls normally manufactured from?
Graphite-epoxy
101
What must a firewall do?
Prevent any hazardous quantity of liquid, gas, or flame from passing through the firewall to other parts of the aircraft.
102
How long should a firewall resist fire?
15 mins
103
What is the name of the firewall specs?
CS25.1191
104
What materials are considered suitable for fire walls?
Stainless steel 0.4mm Mild steel 0.45mm Titanium 0.45mm
105
What purposes do the engine mounts serve?
Connection, vibration dampening
106
What are engine mounts constructed from on light aircraft?
Chrome/molybdenum steel tubing
107
What are engine mounts constructed from on large aircraft?
Forged from chrome/nickel/molybdenum
108
On light aircraft how is the engine usually attached to the mount?
Dynafocal mounts
109
What do metal snubbers do?
Limit the excessive movement of the engine.
110
Where are dynafocal engine mounts angled towards?
CoG
111
What is the turbine vibration isolator engine mount?
Support the powerplants and isolate the aircraft structure from adverse vibration
112
What do the engines accommodate alongside the forces?
Thermal expansion
113

Cat B- Mod 11 Aircraft Systems (28 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions