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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
Q

Where can torq-set screws be used ?

A

Floor boards, Fuel panels, areas of high stress and flexing.

26
Q

Whats an advantage of using MorTorq screw bits ?

A
  1. Can successfully removed MorTorq screws with paint and debris built up in head.
  2. Lightweight
27
Q

What does the size of a MorTorq screw bit range from ?

A

PMT-000 to PMT-8

28
Q

Where do you use a MorTorq screw ?

A

Structure - airliners
External knowledge applications - helicopters

29
Q

Whats used to remove damage screws ?

A

Screw extractor

30
Q

How is a screw extractor used to remove damaged screw from hole ?

A

One end with fixed screw thread is tightened into nearby hole,

31
Q

Whats the three hammers used in aviation ?

A

Ball Pein
DIN general purpose
Soft mallet

32
Q

What does a mallet reduce ?

A

Damage to surface
Force transmitted back to hand

33
Q

Whats the face of a mallet made from ?

A

Nylon or natural rubber

34
Q

What are diagonal pliers ( snips )used for ?

A

Cutting wires

35
Q

Whats used to harden jaws on diagonal pliers ?

A

Inductive heating and quenching

36
Q

Whats the size of a vice measured by ?

A

Jaw width

37
Q

Whats the head angle of an open-end spanner usually ?

A

15 degrees
( open end spanner head angle ranges from 0(parallel)-90 degrees )

38
Q

What does an open-ended crows foot spanner have at the opposite end of the jaws ?

A

Square drive to fit a ratchet which apples turning force.

39
Q

Whats a combination spanner got on its ends ?

A

Open-end at one end of shaft and ring spanner at other end.

40
Q

Whats the purpose of a breaker bar ?

A

To “break” the torque when removing a fastener.

41
Q

Whats the two groups of torque wrenches

A

Type 1 - indicate torque value via scale,dial or electronically.
Type 2 - indicate torque value via feel, audible or visible signal.

42
Q

Where is the L1 and L2 length measured from on a torque wrench ?

A

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
Q

When applying an extension onto end of torque wrench, what must happen to the prescribed torque value ?

A

It will decrease due to the lever being extended.

44
Q

When the an extension has been attached onto the end of a torque wrench at 90 degrees, what happens to the prescribed torque value.

A

Stays the same as theres no change in length with the wrench itself

45
Q

How many mm is 1 inch ?

A

25.4

46
Q

What angle does a centre punch which is used for light work have ?

A

60 degrees

47
Q

What angle is the pin on a pin punch used for light work ?

A

60 degrees

48
Q

What angle is the pin on a pin punch used for general work ?

A

90 degrees

49
Q

What punch is first used when tapping out a Bolt or pin ?

A

Taper punch
( rest of Bolt must be driven out with pin punch after taper punch almost fills the bolt hole. )

50
Q

What does a pin punches diameter range from ?

A

0.8 mom - 1.6mm

51
Q

Which direction does green aviation snips cut ?

A

Curve right

52
Q

Which direction does yellow aviation snips cut ?

A

Cut straight.

53
Q

Which direction does red aviation snips cut ?

A

Curve left

54
Q

Whats the cutting direction on a hacksaw ?

A

Teeth face forwards.

55
Q

Whats the cutting direction of a junior hacksaw ?

A

Teeth face backwards ( towards handle )

56
Q

How is a hand brace better than a normal screwdriver ?

A

You can apply heavier pressure and greater torque.

57
Q

What does the helical groove on a drill bit allow ?

A

Removal of swarf and cutting fluid to enter.

58
Q

What does the chisel edge provide the drill bit ?

A

Thrust to penetrate into the work piece.

59
Q

Whats used to calibrate a micrometer ?

A

Gauge block.

60
Q

Can a torque analyser be used in a workshop ?

A

No. Only used in stores.

M7 (15 decks)

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