Modern Welding Knowledge Test Flashcards
A weld joint refers to what?
How the parts to be joined are assembled prior to welding.
The metal to be joined is called __________.
base metal
If the part to be welded is not metal, it is called ______.
base material (AKA: workpiece or work)
Which piece of metal is to be ground, machined, or cut prior to welding?
base metal
What two things determine how the joint is prepared?
Weld joint design and metal thickness
________ are used when parts are joined edge-to-edge.
butt joints
List the fie basic welding joints.
Butt, lap, corner, edge, tee
__________ refers to how the edges of the joint are shaped prior to welding. It allows the weld to penetrate to the required depth.
Edge preparation
_________ is made by fusing molten filler metal into a butt joint that has been set up in a groove formation.
groove weld
A welder should know the names of the various parts of a _________.
groove joint.
_______ is the surface formed on the edge of the base metal after it has been machined or flame cut.
Groove face
The total angle formed between the groove face on one piece and the groove face on the other piece is the __________.
groove angle
_______ is the angle between the bevel of the joint and a plane perpendicular to the surface of the base material.
bevel angle
_____ is the point where the weld intersects the base metal surface near the bottom of the joint.
weld root
The distance from the weld root to the point where the bevel angle begins is the _____.
root face
________ is the distance between the two pieces at the root of the weld.
root opening
_____ is the outer surface of the weld bead on the side of the weld was made.
weld face
___ is the distance from the top of the weld face to the surface of the base metal.
face reinforcement
_____ is the point where the weld bead contacts the base metal surface. It occurs twice on each weld bead.
weld toe
________ is the distance that the penetration projects from the root-side of the joint.
root reinforcement
_______ or _____ is the depth that a weld extends into the joint from the surface.
Joint penetration or weld size
__________ is formed by two overlapping pieces of base metal.
lap joint
______ is formed by placing two piece of base metal perpendicular or at an angle to one another so that the edge of one piece of base metal intersects the surface of the other piece near its outer edge.
corner joint
_________ are welded along the inside of the intersection of two pieces
inside corner joints
_____ are welded along the outside edge of the joint
outside corner joints
________ formed by two pieces of base metal that are at an angle of approximately 90 degrees to one another.
T-joint
_______ formed when the surfaces of two pieces are in contact and their edges are flush.
edge joint
______ is formed when the edge of one or more pieces of the joint is bent to form a flange.
flange joint
________ are formed when the flanged edges of one or both pieces are placed together to form a single flare bevel or double flare V groove.
flare-groove joints
_______ is a fused joint between two or more pieces of metal or nonmetal. Created by applying heat until the materials melt, flow together, and are cooled to form a single piece.
weld
________ is the process of making a weld on a joint.
Welding
_______ are made at the intersection of a surface and an edge or in a corner where two surfaces meet.
fillet welds
________ is a weld made in a groove or gap created between two pieces of metal.
groove weld
A fillet weld with a ____ bead is stronger than one with a ______ bead because of the addition filler metal.
convex, concave
a _______ is one weld pass of filler metal that is added to a weld joint.
weld bead
The first weld pass is the _____ pass.
root pass
Second of intermediate weld pass is called a _________ pass.
filler pass.
The final weld pass is the ________ pass.
cover pass
_______ is used when a standard bead width is acceptable. Made by moving the torch or electrode along the wed without any side to side motion.
stringer bead
_______ is used to create a wider weld pool, and formed by moving the torch or electrode from side-to-side as the weld pass progresses along the weld joint.
Weave bead
typical stringer weld bead is ___.
1/4”
Various torch or electrode movement patterns can be used when making a weave bead, but the _____ is the most popular pattern.
crescent motion
Typical weave bead is _____.
3/4” to 1”
_____ is the shape and dimensions of a (weld) joint, in cross section, prior to welding.
joint geometry
The ____ of thick metal are prepared for welding by flame cutting, gouging, or machining.
edges
Alignment of the weld joint is often referred to as ________.
Fit-up
______ is a small weld used to hold pieces in alignment.
Tack weld
clamps or other devices, such as __ or ____ are used to hold weldments during welding.
jigs and fixtures
A completed weld joint must be as strong as the ________.
base metal
______ is the depth of fusion of the weld below the surface.
penetration
On welding drawings, these _______ are often abbreviated in the tail of the welding symbol as F, H, V, and O.
welding positions
1G, 2G, 3G, 4G, is referring to what?
Groove joints positions
1F, 2F, 3F, 4F, is referring to what?
Fillet joint positions
What is position 1?
Flat
What is position 2?
Horizontal
What is position 3?
Vertical
What is position 4?
Overhead
Welding positions are determined by the positions of the ______ and _____.
weld axis and weld face
the _____ is an imaginary line running lengthwise through the center of a completed weld.
weld axis
Whenever two or more pieces are joined by welding, the assembled item is called a __________.
weldment
The reference line is always drawn as a __________ line. It is placed near the joint to be welded.
horizontal
The ______ may be drawn from either end of the reference line.
arrow
____ may be used to give information on specifications, the welding process used, or other details required but not shown on the welding symbol.
tail
____ indicates the type of weld to be made on a weld joint.
weld symbol
_____ is the space between the pieces at the bottom or root of the joint.
root opening
What are the Finish symbols mean for C, G, M, R, H?
Chipping, Grinding, Machining, Rolling, Hammering
the s position on the welding symbol indicates the depth of bevel or depth of preparation for groove-type joint. it may also indicated the _____ of certain welds.
size or strength
Two terms used to describe electrode angle or position are _______ and ________.
travel angle and work angle.
_____ is the angle measured from a line perpendicular to the weld axis in the plane defined by the weld axis and electrode axis.
travel angle
When the top of the electrode leads the welding end of the electrode, and the welding arc is pointing back toward the weld bead, the travel angle is called a ____ or ______.
drag angle or drag travel angle (Aka backhand welding)
If the welding end of the electrode points forward in the direction of travel, the angle is called a _____ or ______.
push angle or push travel angle, known as forehand welding.
_____ is the angle measure from a line perpendicular to the major or non-butting surface to the plane containing the weld axis and the center line of the electrode.
work angle
typical work angles in fillet welds range from
30 to 60 degrees (45 degrees the norm)
usually when welding a but weld the work angle is ____.
0
drag or push travel angles usually range from
0 to 40 degrees
on intermittent welds, the ____ is used to indicate the length of each weld.
length dimension
the ______ indicates the distance from the center of one weld segment to the center of the next.
pitch
Welds on either side of a ______ begin and end at the same spot.
chain intermittent weld
