Quiz 2 Flashcards

1
Q

what are the three classifications of structures

A

Primary
Secondary
Tertiary

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2
Q

what are the two structural design philosophies

A

Fail safe

Damage tolerant

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3
Q

what are some common causes of damage

A

Collision/Impact
over stress
corrosion
Fire

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4
Q

what is transmitted damage

A

Damage that is remote from the original impact but is still directly connected

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5
Q

what are the four effects of damage

A

loss of structural strength
loss of functional capacity
change of aerodynamic shape
operational interference

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6
Q

what are four examples of primary structures on an aircraft

A

spars
engine mounts
landing gear
bulkheads

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7
Q

damage that changes the cross sectional shape and weakens load bearing capacity is classified as what kind of damage

A

Loss of structural strength

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8
Q

what is meant by a ‘fail safe’ design

A

a design with 2 load paths

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9
Q

what are the two types of aircraft inspections

A

Scheduled and Non Routine

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10
Q

what are the most common methods of inspection

A
visual
eddy current
ultrasonic
x-ray
dye penetrant
magnetic particle
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11
Q

what are the three classifications of damage

A

Negligable
Repairable
Replaceable

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12
Q

what are the types of repairs

A

temporary
typical
specific
special

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13
Q

what is cladding? what purpose does it serve?

A

A thin coating of pure Aluminium on sheets of aluminium alloys

protects material against corrosion

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14
Q

what are the two protective coatings sprayed over aluminium alloys? what is the difference between the two

A

Anodizing - Applied at the factory

Alodine - Applied by the AME in the field

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15
Q

what is wash primer used for

A

Increased adhesion of paint

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16
Q

an abrupt change in the cross sectional area of a piece of sheet metal is known as what?

A

Stress concentration or a stress riser

17
Q

what is a break? what are the three most common types

A

a machine used to bend angles into sheet metal

box & pan
cornice
press

18
Q

the part on a cornice break where material is bent around is called

A

a nose bar

19
Q

what is a slip-roll former used for

A

creating gradual curves

20
Q

what do head markings on rivets represent

A

the material the rivet is made from

21
Q

what type of rivet is never used for structural repairs

A

pop rivets

22
Q

what are the two categories of blind rivets

A

friction lock

mechanical lock

23
Q

which aluminium alloy has been annealed and needs to be stored in a freezer

24
Q

true or false

A cherry friction-lock rivet can replace a solid rivet of the same size

25
True or false | a Huck-lock rivet is friction lock
False
26
true or false | an olympic lock rivet is a mechanical lock
True
27
what are three types of turn lock fasteners
Dzus Camloc Airloc
28
what are three methods of dimpling sheet metal
Coin dimple Radius dimple Hot dimple
29
the dimensions of the curvature on a bent piece of sheet metal is known as
Bend allowance
30
what are lightening holes? why are they flanged
holes drilled in structural members to reduce weight flanged for strength
31
list 4 examples of primary structures
spar bulkhead engine mount landing gear
32
what is a tertiary structure
Structure that carries low stress