7.3 -Tools

Question 1

What are screw drivers made up of ?

Answer 1

Tip/blade

Shank

Handle

Question 2

What are some characteristics of a screw driver handle ?

Answer 2

Non conductive of heat or electricity

Question 3

What are screwdriver shanks made of ?

Answer 3

Carbon steel

Question 4

What % of the screwdriver tip must slot into the fastener, to stop slippage ? (Flat head)

Answer 4

At least 75%

Question 5

What is the angle of a Phillips screwdriver head ?

How are they numbered ?

Answer 5

30 degrees

Numbered 0 to 5, 5 being the biggest size

Question 6

Angle of a Reed and Prince or Frearson screwdriver head ?

Answer 6

45 degrees

Question 7

Difference between Phillips and Reed + Prince (Frearson) screwdrivers ?

Answer 7

Reed + Prince (Frearson) is sharper and has a bigger angle (45 degrees) compared to the 30 degrees of a Phillips head

Reed + Prince - higher torque can be achieved

Question 8

What is rounding a fastener also known as ?

Answer 8

Cam-out

Question 9

Benefits of Posidriv screwdrivers ?

Answer 9

Improved version of the Phillips, due to increased contact area.

Reduces cam-out

Question 10

Benefits of Torx screwdrivers ?

Answer 10

Ability to apply more torque, reduces cam-out

Less operator effort

Question 11

What are Internal Hex types also known as ?

Answer 11

Allen key fittings

Question 12

Benefits of a tri-wing fitting ?

Answer 12

Greater torque transfer to the screw

Question 13

Benefits of Torq-set screws ?

Answer 13

Cross is offset compares to a normal Phillips cross.

Greater torque transfer

Question 14

Benefits of a MorTorq fastener ?

Answer 14

4 wings that are curved in a cross pattern

This design allows for a shallower recess, yet retain its strength, allowing for less weight

Question 15

Benefits of a Hi-torque fastener ?

Answer 15

Straight slot arrangement (Like a Flat Head) expect it gets wider on the ends of the slot.

Higher toque can be applied

Suitable where there is a need to repeatedly install and remove the fastener, used on thin skin a/c

Question 16

How can hammers be classified? (4 ways)

Answer 16

Pein
Face
Weight
Shape

Question 17

What does the head of the hammer consist of in a hammer ?

Answer 17

Neck, cheek, face and pein

Question 18

What are the 3 most common hammer types in aviation ?

Answer 18

Ball pein

DIN general purpose

Soft face mallet

Question 19

What are ball pein hammers made from ?

Answer 19

High grade drop forged steel, fully heat treated

Question 20

What are 3 less common hammers ?

Answer 20

Dead blow

Copper and rawhide

Sheet metal

Question 21

How are pliers classified ?

Answer 21

By function and nose type

Question 22

What are 4 plier hinge types ?

Answer 22

Fixed

Toggle compound

Lap

Slip

Question 23

What are 4 types of pliers ?

Answer 23

Diagonal (snips)

Combination (general use)

Long nose

Locking

Question 24

What are multi grips also known as ?

What are the characteristics ?

Answer 24

Swan necks

Several curved grooves that make up a series of interlocking joints.
Long handles for greater force

Question 25

What are 3 types of vices ?

Answer 25

Metalworking Hand held Machine

Question 26

What can a metalworking vice be ? (2 options)

Answer 26

Fixed / stationary Rotating

Question 27

What are spammer often made from ?

Answer 27

Chrome vanadium steel

Question 28

What is the angle of an open ended spanner jaw usually ?

Answer 28

15 degrees

Question 29

Benefit of a bi-hex spanner ?

Answer 29

Easier to latch on to nuts and bolts in difficult locations

Question 30

Are adjustable spanner’s to be used on a/c ?

Answer 30

NO, if so use carefully - can cause damage

Question 31

What 4 versions can C spanners be broken into ?

Answer 31

Fixed Adjustable C pin Pin face

Question 32

Where are C Spanners used ?

Answer 32

On landing gear oleo struts or hydraulic filter housings

Question 33

What are the 2 types of torque wrench ?

Answer 33

Type 1 - Torque wrenches that indicate the torque via a mechanical scale, and is up to the operator to stop at the desired torque Type 2 - Torque wrenches that are pre set before use, and beeps or clicks when torque is reached.

Question 34

What are the different Classes of Type 1 torque wrenches ?

Answer 34

Class A - Wrench with flexing bar *susceptible to damage - rare to see* Class B - Rigid body and indicator (dial) Class C - Rigid body and Electronic reading Class D - Screwdriver with indicator (dial) Class E - Screwdriver with Electronic reading

Question 35

What are the different Classes of Type 2 torque wrenches ?

Answer 35

Class A - Adjustable with indicator Class B - Fixed torque wrench Class C - Adjustable with NO indicator Class D - Adjustable Screwdriver with indicator Class E - Fixed Screwdriver Class F - Adjustable Screwdriver NO indicator Class G - Adjustable with flexing bar indicator

Question 36

What is torque ?

Answer 36

Rotational or twisting force, intended to turn a fastener

Question 37

What must be done when storing Torque wrenches ?

Answer 37

Keep in casing Keep clean Store at lowest torque setting - relives pressure from spring

Question 38

What must engineering squares meet in terms of European standard ?

Answer 38

BS 939 + DIN 875

Question 39

What are callipers used for ?

Answer 39

Measuring diameter and distances

Question 40

2 types of callipers ?

Answer 40

Inside (inside diameters) Outside (outside diameters)

Question 41

What are the 2 angles of a prick punch ? When is a prick punch used ?

Answer 41

30 or 60 Used when marking a piece of metal, to show where holes must be drilled, NOT to help the drill

Question 42

What are the 2 angles of a centre punch ?

Answer 42

60 for light and 90 for general work Prevents wander during drilling a hole

Question 43

What is an automatic centre punch ?

Answer 43

60 to 90 degrees Causes a dent, to help with drilling. No hammer needed, just the palm of your hand

Question 44

When is a starting punch used ?

Answer 44

To start when driving out a bolt or pin

Question 45

What type of punch is used to remove a rivet ?

Answer 45

Pin punch

Question 46

What type of punches are used, when damage may occur when using normal steel punches ?

Answer 46

Copper and brass punches

Question 47

What are yellow, green and red aviation snips ?

Answer 47

Yellow - cuts straight Green - cuts right Red - cuts left

Question 48

3 types of saws ?

Answer 48

Full size hacksaw Junior hacksaw Mini hacksaw

Question 49

What is the size range of a full size hacksaw ?

Answer 49

6 to 16 inches 12 being most common

Question 50

Ranges of blade pitches and usage (Full Size Hacksaw)

Answer 50

14 tpi (coarse) - cutting steel 18 tpi (coarse) - aluminium 24 tpi (medium) - thick tubing, brass, copper 32 tpi (fine) - thin tubing, sheet metal

Question 51

Direction of cut on Full Size Hacksaw ?

Answer 51

Forward stroke

Question 52

Direction of cutting on a junior hack saw ?

Answer 52

Towards the operator

Question 53

What are files made of ?

Answer 53

High grade carbon steel

Question 54

Usual angle of teeth of single cut files ?

Answer 54

65 - 85

Question 55

Usual angle of teeth of a double cut file ?

Answer 55

First set: 40 - 50 Crossing set: 70 - 80

Question 56

4 common grades of file cut

Answer 56

Bastard Seconds Smooth Rasp

Question 57

3 methods of filing ?

Answer 57

Straight filing Cross filing Draw filing

Question 58

4 types of pneumatic drill ?

Answer 58

Pistol grip drill Straight drill Right-angle drill 45 degree angle drill