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M7 > 7.3 > Flashcards

7.3 Flashcards

1
Q

What can aviation snips be used to cut ?

A

Fine metal

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2
Q

Whats a screw driver made up of ?

A

Tip, shank, handle

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3
Q

Whats the shank on a screw driver made from ?

A

Carbon steel
( tip is made from the same material but hardened )

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4
Q

Why is a socket type end screw diver useful in aviation ?

A

Means you can have 1 screw driver with many different ends.

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5
Q

Whats the size of the screw heads which are placed into the socket type screw driver ?

A

1/4 inch

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6
Q

What letter in dimension shows the thickness of a flat head screw driver ?

A

Dimension B

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7
Q

What dimension shows the width of a flat head screw driver ?

A

Dimension A

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8
Q

How much of the screw head must a flat head screw driver tip fill so it doesn’t slip ?

A

75 %

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9
Q

Whats the point angle of a Philips screwdriver ?

A

30 degrees
( has blunt end )

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10
Q

Whats the point angle of a reed and prince screw driver ?

A

45 degrees
( shape tip )

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11
Q

Whats an advantage of using a reed and prince screwdriver over a Phillips ?

A

Less chance to cam-out and also can apply more torque

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12
Q

What’s the two sizes ( size 1,2 ) of a reed and prince screw driver used for ?

A

Size 1 - used for PH5 and smaller screws
Size 2 - used for PH6 and larger screws

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13
Q

What can Cause cam - out of a screw ?

A

Incorrect bit has been used to drive screw head ?

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14
Q

Whats an advantage of a Posidrive screw driver head ?

A

Has good contact area between bit and screw reducing the risk of cam-out with more torque being applied.
( used in same locations as a Phillips screw where possible higher torque loadings are required )

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15
Q

What does the size of a Posidrive screwdriver range from in size ?

A

Size ranges from Pz0 - Pz5

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16
Q

What is the head on a Torx screw driver shaped like ?

A

Star

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17
Q

Whats the advantage of a torx screw driver ?

A

Requires less operator effort
Reduces cam-out
Can remove torx screws full of debris

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18
Q

What size does a Torx screw driver range from ?

A

Range from T1 - T100

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19
Q

What size Torx screw driver head should be used if the size of the screw is T25 ?

A

T25 screw driver
( head must be same size to screw )

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20
Q

Whats an internal hex screw head type also know as ?

A

Allen key

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21
Q

Where is an internal hex ( Allen key ) screw used ?

A

High stress pressurised areas

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22
Q

Whats an advantage of using a tri-wing screw head ?

A

Can transfer greater torque loads to the screw

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23
Q

Whats the difference in heads between a torq-set screw and a Phillips screw ?

A

On torq-set bit, the cross on head is offset

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24
Q

What does the size of a torq-set screw bit range from ?

A

0-10 mm

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25
Where can torq-set screws be used ?
Floor boards, Fuel panels, areas of high stress and flexing.
26
Whats an advantage of using MorTorq screw bits ?
1. Can successfully removed MorTorq screws with paint and debris built up in head. 2. Lightweight
27
What does the size of a MorTorq screw bit range from ?
PMT-000 to PMT-8
28
Where do you use a MorTorq screw ?
Structure - airliners External knowledge applications - helicopters
29
Whats used to remove damage screws ?
Screw extractor
30
How is a screw extractor used to remove damaged screw from hole ?
One end with fixed screw thread is tightened into nearby hole,
31
Whats the three hammers used in aviation ?
Ball Pein DIN general purpose Soft mallet
32
What does a mallet reduce ?
Damage to surface Force transmitted back to hand
33
Whats the face of a mallet made from ?
Nylon or natural rubber
34
What are diagonal pliers ( snips )used for ?
Cutting wires
35
Whats used to harden jaws on diagonal pliers ?
Inductive heating and quenching
36
Whats the size of a vice measured by ?
Jaw width
37
Whats the head angle of an open-end spanner usually ?
15 degrees ( open end spanner head angle ranges from 0(parallel)-90 degrees )
38
What does an open-ended crows foot spanner have at the opposite end of the jaws ?
Square drive to fit a ratchet which apples turning force.
39
Whats a combination spanner got on its ends ?
Open-end at one end of shaft and ring spanner at other end.
40
Whats the purpose of a breaker bar ?
To “break” the torque when removing a fastener.
41
Whats the two groups of torque wrenches
Type 1 - indicate torque value via scale,dial or electronically. Type 2 - indicate torque value via feel, audible or visible signal.
42
Where is the L1 and L2 length measured from on a torque wrench ?
L1 - measured from centre of handle to end of wrench ( normal length ) L2 - measured from centre of handle to end of extension ( extended length )
43
When applying an extension onto end of torque wrench, what must happen to the prescribed torque value ?
It will decrease due to the lever being extended.
44
When the an extension has been attached onto the end of a torque wrench at 90 degrees, what happens to the prescribed torque value.
Stays the same as theres no change in length with the wrench itself
45
How many mm is 1 inch ?
25.4
46
What angle does a centre punch which is used for light work have ?
60 degrees
47
What angle is the pin on a pin punch used for light work ?
60 degrees
48
What angle is the pin on a pin punch used for general work ?
90 degrees
49
What punch is first used when tapping out a Bolt or pin ?
Taper punch ( rest of Bolt must be driven out with pin punch after taper punch almost fills the bolt hole. )
50
What does a pin punches diameter range from ?
0.8 mom - 1.6mm
51
Which direction does green aviation snips cut ?
Curve right
52
Which direction does yellow aviation snips cut ?
Cut straight.
53
Which direction does red aviation snips cut ?
Curve left
54
Whats the cutting direction on a hacksaw ?
Teeth face forwards.
55
Whats the cutting direction of a junior hacksaw ?
Teeth face backwards ( towards handle )
56
How is a hand brace better than a normal screwdriver ?
You can apply heavier pressure and greater torque.
57
What does the helical groove on a drill bit allow ?
Removal of swarf and cutting fluid to enter.
58
What does the chisel edge provide the drill bit ?
Thrust to penetrate into the work piece.
59
Whats used to calibrate a micrometer ?
Gauge block.
60
Can a torque analyser be used in a workshop ?
No. Only used in stores.

M7 (15 decks)

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