7B

Question 1

What is workman ship

Answer 1

Workmanship is the degree of skill which a product is made or job done

Question 2

What are the 3 standards of workmanship

Answer 2

1. Private
2. Organization
3. International

Question 3

What is tolerance?

Answer 3

The upper and lower difference between the nominal size

Question 4

What is allowance?

Answer 4

The difference in size between 2 manufactured parts (note the difference between that and tolerance)

Question 5

What is regularly required with tools?

Answer 5

Calibration

Question 6

What should be kept with tools

Answer 6

A register that details the calibration and standards used

Question 7

What should always be checked calibration wise before a tool

Answer 7

That is is ‘zeroed’ and has a calibration tag

Question 8

What should a ball pein hammer not be used for?

Answer 8

Driving nails but can be used for working metal and driving

Question 9

What does a cross pein hammer work for

Answer 9

Access to smaller areas

Question 10

What is a sledgehammer used for?

Answer 10

Driving heavy pins and stakes with a lot of force

Question 11

What are panel hammers used for?

Answer 11

Smoothing out/removing dents in metal and also stretching it out

Question 12

What are soft head hammers used for?

Answer 12

-Seat or position work for machining
-Strike surfaces without damaging them
-Strike full impact blows without rebounding

Question 13

Hammer safety

Answer 13

-Secure head and wedge is in place
-Check the head for splits and burs
-Wipe hands and handle
-Remove any oil, grease or dampness

Question 14

What are punches for

Answer 14

-Making small indents
-Marking
-Stencilling
-Cut holes
-Drive pins etc

Question 15

What is mushrooming

Answer 15

The shank end deforming and becoming shaped like a mushroom. Returned to shape using a bench grinder

Question 16

What are Prick punches

Answer 16

Small-sharp pointed punches used for transferring dimensions and markings onto sheet metal for cutting
Dont use for driving rivets or pins from holes

Question 17

What is the difference between a centrepunch and prick punches

Answer 17

Larger, ground to a larger diameter and produce a bigger hole

Question 18

What is centrepunch used for

Answer 18

Locate a spot and to punch an initial hole for drilling

Question 19

What is a main difference between a file and a chisel?

Answer 19

Files have a large number of cutting edges. Files are used by hand

Question 20

Parts of a file

Answer 20

To obtain the best results, you should be familiar with the parts of a file:

The tang, on which a handle should always be fitted, is not hardened like the body of the file.
The heel is the portion between the tang and the teeth.
The faces are the main surfaces on which the teeth are cut.
The edges are two sides, mainly on flat files, on which teeth may or may not be cut.
The point is the end opposite the tang.
The back is the convex side of a half-round or similar file.
A safe edge is an edge on which no teeth are cut. This permits a corner to be cleaned out without damage to adjacent faces.

Question 21

What can files provide?

Answer 21

Files can provide either a rough finish or smooth finish depending on what the operator wants

Question 22

What are the different types of teeth for a file

Answer 22

Single Cut
Double Cut
Dreadnought cut
Rasp

Question 23

What are the 3 standard cuts for files?

Answer 23

Bastard Cut: Removing large portions easily but produces a rough finish

Second Cut: Cuts slower than bastard but produces a smoother finish

Smooth cut

Question 24

What are the different coloured aviation snips and what do they do?

Answer 24

Yellow: Cut straight
Green: Cut Right
Red: Cut left

Question 25

True or false: Hacksaws can take different blades and the tension can be adjusted

Answer 25

True

Question 26

What can handles look like?

Answer 26

They can be either pistol gripped or like a file

Question 27

At least how many teeth should be in contact with a material at one time on a hacksaw

Answer 27

3

Question 28

What are the three major parts of a drill bit

Answer 28

Shank
Body
Point

Question 29

Formula for RPM of a drill speed

Answer 29

RPM = (cutting speed x 4)/Diameter of cutter

Question 30

Do you want a sharper drill bit (lower angle point) or flatter drill bit (larger angle) for drilling harder materials

Answer 30

large angle, 150 degrees

Question 30

What is the angle of a standard drill bit

Answer 30

118 degrees

Question 31

Why would you use a counter sinking tool and how does it work

Answer 31

To prepare the aircraft skin for flush rivet heads. This is done by either cutting away a portion of the metal to match the taper of the rivet head or by indenting (by pressing) the
edges of the hole to accept the rivet head

Question 32

What are straight fluted drills used for and what precautions do you need to be aware of when drilling with a straight flute bit

Answer 32

drilling into brass. chippings dont clear as well so you need to frequently stop drilling