Prints Flashcards
Def blue prints
Copies of the original drawing
CADD is
Computer aided drafting and desighn
Metric prints default measurement
Mm
An object line is
A thick solid line that shows the shape of a part
Hidden line
A section line does
Shows the different types of material an object is made of
Center line ( also can be used to show an object is symmetrical if its 1/2 drawn)
A is extension lines
B is dimension lines
1) leader lines
2) show notes
A viewing lines
B cutting lines
Short break line
Used to save space on drawing or strip 1 layer away
Long break line
Phantom line
Shows movement
This is an example of _____ dimensions
Unidirectional
This is an example of ______ dimensions
Alighned
This is an example of _____ dimensions
Architectural
A is ?
Def?
-seam line
- where the shell meets the head
B is?
Def?
-datum line
An arbitrary line for point of reference
- datum point is same thing
C is?
Def?
-tangent line
Where the vessel just starts to curve
D is?
The shell
E is?
Head
Perspective drawing definition
Drawn as I would see it
Oblique drawing def
1 true face (front)
Distorted by depth, the bigger the angle the smaller the length
Isometric drawing def
In 3d
3 views ( top/front/right)
Orthographic drawing def, order?
Most common
2d, flat
Order top/front/bottom/left/right
Most common T/F/R
Auxiliary view def
Used from slanted surfaces
Revolved view def
Turn nozzles or parts to get a better view
Section view of an apple AA
Shows 1/2 of the section
Section view B B
Full section view
Convert 10’ 6 37/64” to decimal
-when applying a
A) backing weld
B) back weld
to a groove weld you would
Do the backing weld 1st
Back weld last
A) weld symbol ?
b) welding symbol?
Weld symbol indicates type of weld
A welding symbol is the assembled symbol
The reference line on a welding symbol should be what direction
Horizontal where possible
The arrow side of the symbol is located
The other side is
On the bottom
On the top
The perpendicular side of a fillet weld symbol is always on the ____ side
Left
A field weld shown on a welding symbol is shown by
A black triangle flag
A single bevel symbol has a broken arrow, why
To show which side is being prepped
Where on the reference line is the surfacing weld symbol drawn
On the arrow side
D
What is the proper sequence of welding operations when you have multiple reference lines
That closest to the arrow and work back
What 2 things on a weld symbol will get the answer most of the time
-arrow side/ opposite side
-where the arrow is pointing
How is nominal size measured on an s shape
Flange face to flange face
What does the mc shape refer
Miscellaneous c, a greater variation of size and depths
BPR:
bbe stands for
Bevel both ends
BPR:
bcd stands for
Bolt circle diameter
BPR:
bm, bom stands for
Bill of materials
BPR:
boe stands for
Bevel one end
BPR:
Center line
BPR:
Diameter
BPR:
NPS stands for?
Nominal pipe size
BPR:
NTS stands for?
Not to scale
BPR:
Plate
BPR:
POE stands for?
Plain (scrape) one end
BPR:
R stands for
Radius
BPR:
RFSO stands for?
Raised face slip on
BPR:
RFWN stands for?
Raised face weld neck flange
This is an example of a
Site plan
What is the starting point for site plan drawings called?
A bench mark
What is the difference between an s shape and w shape?
S shapes have a sloped flange
Calculate the weight of this s shape:
S10 x 35 x 10’ 6 1/2”
BPR: shape
Calc formula?
BPR:
T shape designations (2)?
Calculations?
-ST if made from an s shape
-WT if made from a w
-1/2 of shape made from ex t from S24 x 120 would be S24 x 60
2” HSS od?
2”
Difference between HSS round (tubing) and pipe size?
Need to look up pipe od, hss 3” is 3” od ect
Difference in hot rolled vs cold rolled steel shapes
Cold rolled has closer tolerances and a superior bright finish
This is an example of a ____ drawing
Perspective
3 types of shop drawings?
- assembly drawings
- detail drawings
- detail assembly drawings
An assembly drawing :
Shows how all the components fit together and identifies each component on a parts list
A detail drawing :
Clarify the internal relationship between components that cannot be well defined on the main structural drawing
A detail assembly drawing :
Provides info for fabrication and assembly of the unit
What type of drawing system is used for accuracy of 1/64”
Fractional
This is ____ dimensioning
Baseline
This is ___ dimensioning
- its main flaw?
Conventional dimensioning
Prone to cumulative error
This is ____ dimensioning
Running dimensioning
This is _____ dimensioning
Arrow less, aka lazy
BPR : Guage def
Distance from a predetermined point to the center of a hole
BPR: pitch def
Center to center distance between holes along the same line
? Is
Spread
Cope def:
Is a cut out of the flange of a structural member so that the flange of a supporting member can fit in
☆ cuts into the web AND flange
Blocking def:
The process of cutting the flange of an S or W shape to narrow its width
- like cope but just cut the flanges not web
_____ _____ are formed by matching 2 structural members equally to form an angle
Mitre joints
What drawings provide general information about the location and dimension of structural members
Framing plans
Most common type of pipe in a refinery/in general
Carbon steel
Most common type of pipe for corrosive/ high temp applications
Stainless
Cast iron pipe can be used for
Water line
Why are single line piping iso s the most common
Take up less space, easier to draw
Advantages of double line piping iso s
Easier to read and visualize
Bpr symbol
Cross ( reducing)
Bpr symbol
Cross( straight size)
Bpr symbol
Elbow 45
Bpr symbol
Elbow 90
Bpr symbol
Bpr symbols
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
Bpr symbol
On an iso the dimensions are generally from the end of the line too?
Center of the pipe
