Tools

Question 1

How are files categorised? (4)

Answer 1

Length
Section
Grade
Cut

Question 2

Name the 9 different types of file

Answer 2

Hand
Flat
Half-round
Round
Square
Triangular or Three square
Knife Edge
Warding
Rasp

Question 3

Name the different types of hammer (3)

Answer 3

Ball pein
Cross pein & straight pein
Nylon faced

Question 4

How are toolmakers clamps classified?

Answer 4

Overall length

Question 5

How should measuring equipment be treated?

Answer 5

Kept free from rust and not subjected to rough usage

Question 6

How to test an engineers square for accuracy?

Answer 6

Draw a line against a true edge, flip the square, draw another line.

Any gap will show twice the error

Or check against a master square

Question 7

How do you sharpen a spring divider point?

Answer 7

Should close the divider legs and outside of legs be honed on an oilstone

Question 8

What are the two types of hacksaw blades and how many teeth per inch does each type have?

Answer 8

Fine tooth blade - 24 to 32 teeth per inch

Coarse tooth blade - 18 teeth per inch

Question 9

What are 3 different types of hacksaw

Answer 9

Standard
Radial (for contours, radii)
Junior (for small diameter)

Question 10

Why is a chisel used in airframe repair?

Answer 10

To remove the heads from rivets

Question 11

How is a chisel sharpened?

Answer 11

By grinding on an emery wheel (grindstone)

Question 12

How are vee blocks classified?

Answer 12

By the maximum diameter of the work they can hold

Question 13

What are the three heads of a combination set and what do they do?

Answer 13

Square head (engineers square)

Centre head (for finding the centre of the end of a round bar or tube)

Protractor head (angles)

Question 14

What should you check before using a hammer?

Answer 14

The head is securely fixed to the shaft and the shaft is free from cracks

Question 15

What should you check before using a file?

Answer 15

The hand is securely fitted

Question 16

How to sharpen the scribing nib of a vernier height gauge?

Answer 16

Using an oilstone

Question 17

What does SWG stand for?

Answer 17

Standard wire guage

Question 18

Whats the difference between measuring and gauging?

Answer 18

Measurements are dimensions measured using an instrument while gauging means comparing the dimension without reference to its size

Question 19

What information is on a calibration label? (5)

Answer 19

Date of calibration
Date of next calibration
Serial number
Certificate of calibration number
Calibration centre

Question 20

What are three main types of standard gauges?

Answer 20

Plug gauge - holes an screw threads GO/NO GO (feeler gauge)

Calliper gauge - wire & drill size

Profile gauges - radius & screw pitch

Question 21

3 types of pneumatic hand drill

Answer 21

Straight drill
Angled drill
Pistol grip drill

Question 22

Why are tools in aircraft environments air driven? (2)

Answer 22

Avoid possibility of static discharge around fuels and oils

Controllable rotational speed and high torque

Question 23

6 main attachments for a pneumatic drill

Answer 23

Twist drill
Cone cutters
Rotational files
Hole saws
Abrasive pads
Countersinking tool

Question 24

What are the two grades of twist drill?

Answer 24

Carbon steel
High speed steel

Question 25

Whats the purpose of the helical shape on a drill bit?

Answer 25

To allow swarf to be cleared from the hole and allow lubricant to reach the cutting edge

Question 26

What shank does a drill below 12.5mm have?

Answer 26

A parallel shank

Question 27

What shank does a drill above 12.5mm have?

Answer 27

Tapered shanks

Question 28

What lubricant is recommended for drilling mild steel?

Answer 28

Soluble oil

Question 29

What lubricant is recommended for drilling High-carbon & alloy steels and aluminium alloys?

Answer 29

Kerosene

Question 30

What lubricant is recommended for drilling cast iron and brass?

Answer 30

Usually no lubricant required

Question 31

Whats the taper of an imperial reamer?

Answer 31

1 in 48

Question 32

Whats the taper of a metric reamer?

Answer 32

1 in 50

Question 33

What are the three types of tap?

Answer 33

Taper tap Secondary tap Plug tap

Question 34

Which tap is used to finish a thread in a blind hole?

Answer 34

Plug tap

Question 35

Whats the difference between a taper tap and a secondary tap?

Answer 35

A taper is used to start the thread cutting process The second tap is used afterwards to deepen the thread

Question 36

To cut an internal screw thread, what size should the hole be?

Answer 36

Equal to the minor diameter of the thread

Question 37

What size diameter should a rod be to cut an external thread on it?

Answer 37

Equal to the major diameter of the thread

Question 38

What two reasons is a wire thread insert used?

Answer 38

For repairing a damaged thread For providing a hard wearing thread in a material which is otherwise not hard wearing

Question 39

What is used to extract a broken stud?

Answer 39

An ezy out

Question 40

Whats screw pitch?

Answer 40

The distance between threads

Question 41

What are the 4 Cs for pre use checks of vernier calliper?

Answer 41

Calibrate Clean Close Check out

Question 42

What material is used to manufacture a chisel?

Answer 42

High carbon steel

Question 43

When using a vernier calliper for internal readings what myst you remember to do?

Answer 43

Add the thickness of the jaws to the reading