Layout

Question 1

Lay out angled from 0 to 180 degrees
With the centre head attachment can also be used on pipe or cylinders

Answer 1

Bevel protractor

Question 2

Small arc and circles
Transfer small measurements
To draw a circle set to any radius

Answer 2

Divider/ compass

Question 3

Large arcs and circles
Transferring large measurements
Can be attached to any steel or wooden bar

Answer 3

Trammel points

Question 4

Has an articulating arm to scribe along any contour

Answer 4

Contour markers

Question 5

Used for fine detail
High degree of accuracy

Answer 5

Layout dye

Question 6

Mark up for alignment

Answer 6

Use punch marks to mark the material if good fit up is achieved but you must move the piece to continue to work on it.

Question 7

What tool is good to mark heavily scaled plate to be cut

Answer 7

Centre punch

Question 8

Used to check the id of rolled plate

Answer 8

Sweeps

Question 9

What is the best template material to use to mark circles on pipe

Answer 9

Gasket material

Question 10

….. is measured by OD only

Answer 10

Tube

Question 11

What is the last size of pipe that is measured in NPS

Answer 11

12

Question 12

What is the best way to divide a pipe in quarters

Answer 12

Fold a paper in half twice

Question 13

What is the centre finder mainly used to find

Answer 13

TDC

Question 14

NPS

Answer 14

Nominal pipe size

Question 15

Directly related to wall thickness and will determine how much pressure that a pipe can handle

Answer 15

Schedule

Question 16

L shape (angle iron)

Answer 16

Can be used as a straight edge on pipe

Question 17

For marking reference points 0 - 180 degrees opposite each other

Answer 17

Centre finder

Question 18

When does pipe begin to be measured in OD

Answer 18

14

Question 19

How many wraps of a wraparound is recommended to ensure alignment

Answer 19

2

Question 20

Templates
Benefits of

Answer 20

Improve accuracy
Reduce labour and time spent on layout work
Provide better nesting of components

Question 21

AIT
What is this template

Answer 21

Middle piece of a multiple piece elbow slot on exaughsts (mitre)

Question 22

Provides TDC (top dead center) pin acts as a centre punch

Answer 22

Centre head

Question 23

Two common uses for dividers/ compass

Answer 23

Scribe smaller circles and arcs
Accurately transfer repeated measurements

Question 24

Two uses for trammels

Answer 24

Scribe larger circles and arcs
To accurately transfer repeated measurements

Question 25

What layout tool is specially designed for developing cut lines at any given angle on pipe and structural shapes

Answer 25

A contour marker

Question 26

The divisions marked on a protractor head measure

Answer 26

Degrees

Question 27

The most accurate method of placing repeated measurements on a piece of steel plate is to use a

Answer 27

A set of dividers

Question 28

List two markers that are preferred for accuracy when marking steel

Answer 28

Scribers Soap stone

Question 29

Permanent layout marks are made using

Answer 29

A centre punch

Question 30

Centre punch marks on a cut line are used to

Answer 30

Act as a guide for improved cutting accuracy

Question 31

Three general template categories

Answer 31

Layout templates Checking templates Guiding templates

Question 32

Two materials suitable for temporary templates

Answer 32

Gasket paper Cardboard

Question 33

Three materials that may be used for permanent templates

Answer 33

Metal Wood Plastic

Question 34

Templates marked with quadrant lines are most likely used when working with

Answer 34

Pipe

Question 35

Define Nominal pipe size

Answer 35

Piping by name only. Nominal pipe size is NOT equal to outside diameter for pipe 12” and smaller, but is equal to the OD for pipe 14” and larger

Question 36

What factor determines the nominal pipe size for 12” and smaller pipe And 14” and larger pipe

Answer 36

12” - the inside diameter of standard pipe 14” - the outside diameter

Question 37

What significant factor remains the same for any size pipe

Answer 37

The outside diameter

Question 38

Explain the difference between sched 40 pipe and standard wall pipe

Answer 38

Each size of sched 40 pipe has a dif wall thickness whereas standard pipe 10” and over has a wall thickness of 3/8

Question 39

When dealing with pipe what does the term sched number mean

Answer 39

The strength of pipe with reference to its wall thickness

Question 40

In the metric system what unit of measure is used for pipe wall thickness

Answer 40

Millimeters

Question 41

Two tools that are handy for custom layout of mitre lines on pipe are a ________ and a ________

Answer 41

Contour marker Wraparound

Question 42

Consists of a series of rounded bumps Min stress and reduces notch effect

Answer 42

Low stress stamps

Question 43

Neither to large or complicated, usually 45 degrees

Answer 43

Oblique drawing

Question 44

3 types of templates

Answer 44

Layout template - mark lines for cutting , bending shearing or braking Checking templates - check amount of forming, rolling and braking operations Guiding templates - punch and drilling

Question 45

Used to check the ID of rolled plate

Answer 45

Sweeps

Question 46

Temporary template material

Answer 46

Paper and cardboard

Question 47

Wear resistant template material

Answer 47

Gasket, plastic or metal

Question 48

The last size of pipe that is measured in NPS

Answer 48

12”

Question 49

Original 3 thicknesses with pipe are

Answer 49

Standard Extra strong Double extra strong

Question 50

True or false Standard and sched 40 have the same wall thickness through 10”

Answer 50

True

Question 51

True of false XS and sched 80 have the same wall thickness through 8”

Answer 51

True

Question 52

True or false Nominal pipe size is not equal to the outside diameter for 12” and smaller but equal to OD for 14” pipe and larger

Answer 52

True

Question 53

True or false Standard pipe 10” and larger has a 3/8” wall thickness Extra strong pipe 8” and larger has a 1/2” wall thickness

Answer 53

True

Question 54

Tools needed for isometric drawings (2)

Answer 54

Tee square and set square 30 - 60 - 90

Question 55

Oblique drawings are usually 45 degrees true or false

Answer 55

True

Question 56

Unidirectional (dimensions on blue prints)

Answer 56

One direction

Question 57

Aligned (dimensions on blueprints)

Answer 57

Will line up with whatever side it is on. Vertical and horizontal.

Question 58

Find the bolt hole angle

Answer 58

360 degrees divide by number of holes

Question 59

Schedules of wall thickness uses a numbering system in divisions of ten: 10, 20, 30, 40, 50…. True or false

Answer 59

True

Question 60

Schedule is more variety and doesn’t have to be as thick, directly related to how much pressure that pipe can handle True or false

Answer 60

True