M6 V3 Flashcards
1
Q
Since heat is used as curing agent, these resins may tend to run off of any vertical or near vertical surface before they have a chance to cure. “they run like water.”
A
THIXOTROPIC AGENTS
2
Q
Iron, or any alloy containing iron.
A
FERROUS MATERIALS
3
Q
Reaction of two different types of molecules when reactive groups.
A
POLYADDITION
4
Q
Titanium alloys can only be welded under
A
INERT GAS/VACUUM
5
Q
Have a point contact between the balls and the races.
A
BALL BEARINGS
6
Q
Rivet diameter ms20292881 5-8 –
A
1/2
7
Q
Content of carbon, 40/100
A
0.40%
8
Q
The material is heated to a specified
temperature and help there for a specified time.
A
SOLUTION ANNEALING
9
Q
These are used with drilled- -shank- hex-head bolts, clevis bolts, eye bolts or rivets and is designed to lock cotter pin or wirelocking.
A
NON-SELF LOCKING NUTS
10
Q
A flush rivet with a very small flush head and the head of the rivet is slightly arced and has a special head mark.
A
SHEAR REVIT NUT
11
Q
The thickness of the clad layer.
A
3-5% OF THE MATERIAL THICKNESS.
12
Q
Sheets made of alloys are with a thin layer of pure aluminium on both sides as a means of corrosion protection.
A
CLAD
13
Q
The ratio of stress to strain within the proportional limit of a material in tension or compression
A
MODULUS OF ELASTICITY
14
Q
The maximum stress that can be applied to a material without permanent deformation of the
material.
A
YIELD STRENGTH
15
Q
Not brittle
A
CAST ALUMINUM ALLOYS
16
Q
Blind rivet
A
TENSION
17
Q
What do we measure in grip gauge-
A
GRIP LENGTH
18
Q
<s
A
SMALL LETTER S
19
Q
Raised cross
A
5056 ALUMINUM ALLOY
20
Q
Raised “i”
A
MONEL
21
Q
Ad rivets are identified by a small dimple in the centre of their head.
A
2117 ALUMINIUM ALLOY
22
Q
Identified two raised dashes in their heads and they are called icebox rivets.
A
2024 ALUMINIUM ALLOY
23
Q
Raised cross on their head
A
5056 MAGNESIUM
24
Q
The property of a metal which allows it to be deformed without breaking.
A
TOUGHNESS
25
When screwed into a hole of the correct diameter they form their own thread. The screw head may be slotted or cross recessed.
SELF-TAPPING SCREW
26
7x19
FIRST NUMBER OF STRANDED, SECOND NUMBER OF WIRES
27
Part number
GREEN COLOR ON THE INSULATOR
28
Wire number
BLACK
29
Bearing deal with the two kinds of loading which are the,
RADIAL AND THRUST
30
Finer version of the whitworth thread form and the smaller thread form
BSF
31
Provides a finer form of adjustment and greater resistance to vibration in all fastening devices
A) BRITISH STANDARD FINE (BSF)
32
Engr. Component which when deflected by a force tends to return to its unloaded shape.
SPRING
33
Also known as “icebox rivets” two raised dashes
DD RIVET OR 2024 ALUMINUM ALLOY
34
These inserts are manufactured from round wire which is converted into a diamond shaped.
HELICOIL
35
Bearing
CONTAMINANTS
36
The force per unit of area and in pounds per square inch.
UNIT STRESS
37
Quadrax
FOUR WIRE
38
Airbus customer number
9000-9999
39
Will fracture
ULTIMATE STRENGTH
40
Is made from small strands of molten silica glass and then spun together and woven into cloth
FIBERGLASS
41
60°
AMERICAN NATIONAL COARS AND FINE (ANC AND ANF)
42
Hole is larger than the shank
CLEARANCE FIT
43
Shank is larger than the hole
INTERFERENCE FIT
44
Same size
TRANSITION FIT
45
Basic temper designation
F – as fabricated
0- annealed
h – strained hardened
w- solution annealed
t -heat-treated
46
Applicable for steel components, which are hardened and have to be softened for mechanical processing
SOFT ANNEALING
47
Non-metal or mettalic contact
CREVICE CORROSION
48
Contamination of fuel
MICROBIAL CORROSION
49
Deeper thread have fewer threads
COARSE PICTH
50
Is the sheating of wires and cables with an electrically conductive material in order to prevent electromagnetic fields from either entering or escaping from wires and cables
SHIELDING
51
Sinusukat yung temperature
THERMOCOUPLE
52
Deformation of the shank
UPSET HEAD
53
9 atoms
BODY-CENTERED-CUBIC (BCC)
54
14 atoms
FACE-CENTERED-CUBIC (FCC)
55
17 atoms
HEXAGONAL CLOSED PACKED (HCP)
56
Rigid body in which the constituent particles are
ARRANGED IN REPEATING PATTERN.
CRYSTAL
57
Inaadd sa steel
CARBON
58
Scratches, nicks or corrosion
NOTCH SENSITIVITY
59
Deformed chipless
COLD SHORTNESS SENSITIVITY
60
Separation of plies
DELIMANATION
61
Wetting with acidic fluid or mordants
HYDROGEN EMBRITTLEMENT
62
Reformed, hardening is reversible
THERMOPLASTIC
63
Hardening is irreversable and the resin would be damaged when heat is applied
THERMOSETTING RESINS
64
How to determine glare grade?
BY THE NUMBER OF PREPREG LAYERS AND THEIR ORIENTATION
65
Measures the depth, diamond cone.
ROCKWELL TESTER
66
Uses a hardened spherical ball
BRINELL
67
Rule of thumb for selecting the rivet size is to choose a rivet
DIAMETER IS ATLEAST 3 TIMES THE
THICKNESS OF THE THINNEST SHEET BEING JOINED.
68
They are measured materials which cross rectangularly with warp threads and filling threads.
FABRICS
69
When the core bonded between two thin- face sheets, it provides a rigid, lightweight component.
SANDWICH CONSTRUCTION
70
Combined to fiber bundles in large amount without twist and nearly parallel?
ROVING
Pure aluminum can not be hardened by heat
treatment
Strain hardening at heat treatment. Can not
be heat treated
71
Rapid cooling of material after heating (soft anealing) in a liquid to retain strength properties gained
QUENCHING
72
Increase the yield strength
PRECIPITATION HARDENING
73
The relations between external forces applied to an elastic body and the deformations and internal stresses resulting from those applied forces
STRENGTH OF MATERIAL
74
To crimp two elements onto a wire, special crimping tool.
COLD WELDING
75
Why do we need to temper steel after quenching?
TO RELIEVE INTERNAL STRESS AND
INCREASE STRENGTH
76
A special form of crevice corrosion, identified by “worm-like” trace of corrosion products?
FILIFORM CORROSION
77
Which material is cladded with pure aluminum for corrosion resistance?
ALUMINUM ALLOY
78
Chemical reaction between two similar or dissimilar basic unit which have at least two functional groups.
POLYCONDENSATION
79
Mechanical components used to support the journals of shafts and axles
BEARINGS
80
The stress at which a material in tension, compression or shear will fracture
ULTIMATE STRENGTH
81
Ability of a material to withstand forces which tend to deform the material in any direction?
STRENGTH
82
What is the aim of hardening (heat treatment)?
TO INCREASE STRENGTH OF THE
MATERIAL
83
A chemical reaction, which combines small molecules (monomers), containing a double agent, into long chain molecules?
POLYMERISATION
84
Are general characterized by its yellow color, light weight and its excellent tensile strength and better known as kevlar?
ARAMID
85
What is the density of aluminum?
2.7 KG/DM3
86
Are used to connect two shafts with each other?
COUPLINGS
87
Aluminum alloys that can be formed non-cutting in the cold and the warm state, which means they can be drawn, clenched, miled and forged?
WROUGHT ALUMINUM ALLOYS
88
Aluminum alloy that has a good flowability in the liquid state?
CAST ALUMINUM ALLOYS
89
A composite damage due to an adhesive failure and separation of materials?
DEBONDING
90
This fiber is already included with the resin in the production process and then cooled down very fast?
PREPREGS (PRE-IMPREGNATED FIBER)
91
The thread standard, a symmetrical thread with
an angle of 55º?
BSW (BRITISH STANDARD WHITWORTH)
92
Differs from bsw and bsf in having a thread angle of 47.5º
BA (BRITISH ASSOCIATION)
93
This is the prominent point of the thread; wheter an external or internal thread, it is the top of the thread?
CREST
94
Density for titanium?
4.5 KG/DM3
95
It is stronger than kevlar and has high compressive strength?
GRAPHITE/BLACK GRAPHITE/ CARBON FIBER
96
Carbon content 0.05 up to 0,5% hardening is unspecific
CONSTRUCTION STEEL
97
0,5 up to 0,8% can be hardened
CARBON STEEL
98
All are advantages of composite except?
REDUCE COST
99
Fiberglass
LOW COST
100
Effectiveness of an adhesive depends on
RESISTANCE TO SLIPPAGE & SHRINKAGE, MALLEABILITY, COHESIVE STRENGTH & ADHESION
101
Used for cabin furnishing
PHENOLIC RESINS
102
Too much resin
RESIN RICH
103
Return to their natural state
CORROSION
104
A spring steel washer with slanting serrations on its internal or external circumferences
SHAKEPROOF WASHER
105
Pins included grooves onto which a collar is swaged
LOCKBOLTS
106
It deforms its back when a tension load is applied at the front?
BLIND RIVET
107
Have a very low starting resistance and are suitable for high rotational speeds
BALL BEARINGS
108
It provides strong, flexible and positive connections?
CHAINS
109
Short circuits in wire harnesses
CARBON ARC TRACKING / INSULATION FLASHOVER
110
By heating (solution annealing) these alloys to a certain temperature, and subsequent quenching, the strength in increased within a certain?
AGING TIME
111
Hardening of the material at room temperature
NATURAL AGING
112
Aging at elevated temperature in a furnace
ARTIFICIAL AGING
113
Are often lubricated with water, the water also acts as a coolant, because these bearings tend to retain heat
SYNTHETIC BEARING
114
No identifier on their head
1100 ALUMINIUM (A)
115
Identified by a small dimple
2117 ALUMINIUM ALLOY (AD)
116
Identified by a raised dot
2017 ALUMINIUM ALLOY (D)
117
Identified by two raised dots
2024 ALUMINIUM ALLOY (DD)
118
Identified by a raised cross on their head
5056 ALUMINIUM ALLOY (B)
119
Used for fastening corrosion resistant steel sheets. No markings
CORROSION-RESISTANT STEEL (F)
120
Identified with two recessed dimples or r in their head
MONEL (M) (NICKEL ALLOY)
121
Identified by a raised v or t
TITANIUM (T)
122
Turnbuckle must never be lubricated
True
123
How do you connect lines?
MUST BE ABLE TO CONNECT TO THE
CONNECTIONS EXACTLY MATCHING THE
AXIS AND BE FREE OF TENSION
124
Presence of aggressive chemical in the atmosphere/ without electrolyte
CHEMICAL CORROSION
125
When mechanical forces act on a component which leads to corrosion
STRESS CORROSION
126
Appears as white powdery deposit and the starting point for intergranular corrosion
PITTING CORROSION
127
Results in the rubbing movement between two heavily loaded surfaces and can eventually cause cracking fatigue
FRETTING CORROSION
128
How do you measure resin/hardener ratio of 100:65?
BY VOLUME
129
How do you measure resin/hardener ratio of 100:60
BY WEIGHT
