Layout Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

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

A

Bevel protractor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

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

A

Divider/ compass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

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

A

Trammel points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Has an articulating arm to scribe along any contour

A

Contour markers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Used for fine detail
High degree of accuracy

A

Layout dye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mark up for alignment

A

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.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

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

A

Centre punch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Used to check the id of rolled plate

A

Sweeps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

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

A

Gasket material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

….. is measured by OD only

A

Tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

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

A

12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the best way to divide a pipe in quarters

A

Fold a paper in half twice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the centre finder mainly used to find

A

TDC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

NPS

A

Nominal pipe size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

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

A

Schedule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

L shape (angle iron)

A

Can be used as a straight edge on pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

For marking reference points 0 - 180 degrees opposite each other

A

Centre finder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

When does pipe begin to be measured in OD

A

14

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How many wraps of a wraparound is recommended to ensure alignment

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Templates
Benefits of

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

AIT
What is this template

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

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

A

Centre head

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Two common uses for dividers/ compass

A

Scribe smaller circles and arcs
Accurately transfer repeated measurements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Two uses for trammels

A

Scribe larger circles and arcs
To accurately transfer repeated measurements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

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

A

A contour marker

26
Q

The divisions marked on a protractor head measure

A

Degrees

27
Q

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

A

A set of dividers

28
Q

List two markers that are preferred for accuracy when marking steel

A

Scribers
Soap stone

29
Q

Permanent layout marks are made using

A

A centre punch

30
Q

Centre punch marks on a cut line are used to

A

Act as a guide for improved cutting accuracy

31
Q

Three general template categories

A

Layout templates
Checking templates
Guiding templates

32
Q

Two materials suitable for temporary templates

A

Gasket paper
Cardboard

33
Q

Three materials that may be used for permanent templates

A

Metal
Wood
Plastic

34
Q

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

A

Pipe

35
Q

Define
Nominal pipe size

A

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

36
Q

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

A

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

37
Q

What significant factor remains the same for any size pipe

A

The outside diameter

38
Q

Explain the difference between sched 40 pipe and standard wall pipe

A

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

39
Q

When dealing with pipe what does the term sched number mean

A

The strength of pipe with reference to its wall thickness

40
Q

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

A

Millimeters

41
Q

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

A

Contour marker
Wraparound

42
Q

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

A

Low stress stamps

43
Q

Neither to large or complicated, usually 45 degrees

A

Oblique drawing

44
Q

3 types of templates

A

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

45
Q

Used to check the ID of rolled plate

A

Sweeps

46
Q

Temporary template material

A

Paper and cardboard

47
Q

Wear resistant template material

A

Gasket, plastic or metal

48
Q

The last size of pipe that is measured in NPS

A

12”

49
Q

Original 3 thicknesses with pipe are

A

Standard
Extra strong
Double extra strong

50
Q

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

A

True

51
Q

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

A

True

52
Q

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

A

True

53
Q

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

A

True

54
Q

Tools needed for isometric drawings (2)

A

Tee square and set square 30 - 60 - 90

55
Q

Oblique drawings are usually 45 degrees true or false

A

True

56
Q

Unidirectional (dimensions on blue prints)

A

One direction

57
Q

Aligned (dimensions on blueprints)

A

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

58
Q

Find the bolt hole angle

A

360 degrees divide by number of holes

59
Q

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

A

True

60
Q

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

A

True