1st Year

Question 0

What is a leader line

Answer 0

It is a line with an s or a dot or an arrow, it leads from an info box to a particular area

Question 1

Orthographic projection is in 2 forms what are they.

Answer 1

3rd angle is primarily North America

1st angle primarily Europe

Question 2

What is the text standard for drawings

Answer 2

Upper case gothic

Question 3

What are the 3 basic dimensioning units

Answer 3

Metric
Imperial fraction
Imperial decimal

Question 4

Dimensioning is broken into 3 groups with 1 being dual dimensional what are the other 2

Answer 4

Unidirectional (the preferred method)

Aligned

Question 5

What are 3 pieces of info in a title block

Answer 5

Title
Drawing #
Name of drafts person
Date of drawing 
Scale used
Tolerances
Material used
Company name

Question 6

What is BC

Answer 6

Bolt circle

Question 7

What is BHC

Answer 7

Bolt hole circle

Question 8

What is BCD

Answer 8

Bolt circle diameter

Question 9

What is CTRS

Answer 9

Centres

Question 10

What is TYP

Answer 10

Typical

Question 11

What is CBORE

Answer 11

Counterbore

Question 12

What is CSK

Answer 12

Countersink

Question 13

What is SFACE

Answer 13

Spot face

Question 14

Threads can be drawn in 3 ways what are they

Answer 14

Schematic
Pictorial
Simplified

Question 15

Which of the 3 drawing of a thread is most commonly used

Answer 15

Schematic

Question 16

With a thread designation what is the symbol for an external thread

Answer 16

A is external

B is an internal thread

Question 17

With a metric thread designation what is the symbol used for an internal thread

Answer 17

G

g is for an external thread

Question 18

Pictorial drawings give a 3D view and can be done in 1 of 3 ways what are they

Answer 18

Perspective: front not distorted, top & side taper off
Oblique: front not distorted but the other views are distorted not tapered off.
Isometric: best for trades, ( imagine a centre post and other views at 30*.

Question 19

What is NTS

Answer 19

Not to scale

Question 20

What are sectional views

Answer 20

Allows a cut away view of what you can’t see

Question 21

There are 7 sectional views can you name 3

Answer 21

Full: WP in half along the cutting plane.
Half: 1/4 view were you can see the inside and outside.
Revolved: like cutting and pulling out a piece and rotate 90*.
Offset: will show multiple details if they are not centred.
Aligned: like offset but appears on 1 line.
Broken out: used to see a small section, like snapping off a corner.

Question 22

When a drawing is scaled the left number refers to the drawing and the right number refers to the object, so would would 4:1 indicate

Answer 22

The drawing is larger than the actual object.

Question 23

What is Tolerance.

Answer 23

It is the total maximum permissible deviation of a part size

Question 24

What is basic size

Answer 24

This is the size before any tolerance or variation is applied

Question 25

What is a unilateral tolerance

Answer 25

It is either + or - not both

Question 26

What is a bilateral tolerance

Answer 26

It has a + and - number

Question 27

What is an equal bilateral tolerance

Answer 27

This is a bilateral tolerance with both numbers the same

Question 28

What is limits of size

Answer 28

This is another form of dimensioning, it is shown with 2 numbers an upper and a lower limit 0.090 0.080

Question 29

What is an allowance

Answer 29

This is the intentional difference between mating parts at MMC

Question 30

What is MMC

Answer 30

Maximum material condition | This is maximum material allowable left on the parts

Question 31

What are the 3 types of fit

Answer 31

Clearance Interference Transition

Question 32

What is a clearance fit

Answer 32

The shaft will always fit into the mating hole, even at MMC

Question 33

What is an interference fit

Answer 33

The shaft will always be larger than the bore, AKAN press fit

Question 34

What is a transition fit

Answer 34

There may be clearance or interference

Question 35

what is the symbol for a surface finish

Answer 35

A check mark

Question 36

If the surface finish symbol has a number what is the measurement in

Answer 36

Micro or millionths of an inch

Question 37

If the surface finish symbol has a 0 in the middle what does it indicate

Answer 37

No material removal