120102e Flashcards
Five basic types of joints:
A) butt, edge, Tee, lap and groove
B) butt, Tee, lap, corner and groove
C) butt, Tee, lap, edge, and corner
D) butt, groove, Tee edge and corner Air
C) butt, Tee, lap, edge, and corner
What type of joint is shown in figure 27
A) plug
B) tee
C) butt
D) lap
D) lap
A butt joint is a welded joint where the joint parts:
A) lie in the same plane
B) for a corner
C) right angles to each other
D) form a Tee
A) lie in the same plane
The four main types of welds:
A) groove, fillet, plug and surfacing
B) fill it, Vee, bevel and groove
C) Vee, bevel, bead and fillet
D) groove, Vee, bevel, and plug or slot
A) groove, fillet, plug and surfacing
Name the five types of groove welds
Square
Bevel
Vee
J
U
On what type of joint would you most likely find groove welds?
A) edge
B) butt
C) fillet
D) lap
B) butt
The root bead of a groove weld is the
A) last pass of the finished weld
B) widest space between two pieces to be welded
C) layer of material which is intended to fill up the joint
D) first pass or penetration bead
D) first pass or penetration bead
Name the four types of fillet welds
Continuous
Intermittent
Chain intermittent
Staggered intermittent
On what joints would you find a fillet weld?
A) edge, corner, butt
B) butt, lap, Tee
C) Tee, lap, corner
D) edge, lap,Tee
C) Tee, lap, corner
The size of a fillet weld is determined by:
A) leg length of the largest leg triangle that may be drawn within the cross-section of the weld
B) measuring across the face of the weld
C) certified welding inspector
D) the thickness of the material being welded
A) leg length of the largest equal leg triangle that may be drawn within the cross-section of the weld
To check the size of a convex fillet weld you would measure:
A) leg length of the largest leg triangle that may be drawn within the cross-section of the weld
B) thickness of the material being welded -10% to account for welded metal convexity
C) across the face
D) length of the world
A) leg length of the largest equal leg triangle that may be drawn within the cross-section of the weld
The size of groove welds is determined by
A) width between toes
B) throat dimension
C) included angle
D) root radius
B) throat dimension
What is the size of the groove weld in figure 28.
A) 9.6 mm (3/8”)
B) 13 mm(1/2”)
C) 14 mm ( 9/16”)
D) 16 mm ( 5/8”)
B) 13 mm(1/2”)
What may be done to reinforce welds made on a lap joint
A) place one more pass over the finish weld
B) avoid penetrating the root of the joint with the metal
C) produce a concave finish fillet weld
D) place plug or slot welds along the joint
D) place plug or slot welds along the joint
Why is it sometimes necessary to bevel joint edges prior to welding?
A) to prevent distortion
B) to obtain complete penetration
C) to make the job last longer
D) to provide a clear line to follow one welding
B) to obtain complete penetration
Edge joints are most often used on
A) sheet metal
B) pipe
C) sheet steel over 13 mm (1/2”) thick
D) castings
A) sheet metal
Which of the following joint preparations on a given material thickness would require the least amount of filler metal
A) double U
B) double Vee
C) single Vee
D) single U
A) double U
List three reasons why excessive convexity on a fillet weld is considered a welded fault
over welding is $$, & adds no strength to the joint
Notch affect
Can contribute to excessive distortion
Which types of groove welds require only one member of the joint to be prepared
A) square and bevel
B) Vee & J
C) bevel &J
D) U& J
C) bevel &J
What is the main advantage of the lap joint?
No edge preparation is required
When using edge, corner and Tee joints, when should you consider preparing the joint edges?
A) when working with light gauge sheet metal
B) when fabricating only with non-ferrous metals
C) when working with thicker materials where full penetration is desired
D) when preparing to weld the joint with GMAW
C) when working with thicker materials where full penetration is desired
What does the G stand for when interpreting the 2G position?
A) grind before welding
B) groove weld
C) gas shielded wire is required
D) see note G on the drawing for welding procedure details
B) groove weld
What does the three stand for when interpreting the 3F position?
A) three passes required
B) overhead position
C) a 3rd your apprentice is allowed to weld this joint
D) vertical position
D) vertical position
What is the primary factor in the selection of joint type?
A) accessibility for welding
B) carbon content of the base metal
C) strength and loading requirements
D) available welding, and cutting processes
C) strength and loading requirements
Selecting a joint preparation that requires the least amount of filler metal
A) put welders out of business
B) result in poor penetration
C) make it very difficult to weld
D) minimize distortion and lower cost factors
D) minimize distortion and lower cost factors
What does BCTEL stand for
B
C
T
E
L
Butt
Corner
Tee
Edge
Lap
The 5 basic joints may be welded using one of 4 weld types.
a) surfacing, plug/slot, fillet, groove
b) surface, plug, u-groove, v-groove
c) corner, tee, edge, fillet
d) surfacing, plug/slot, tee, edge
a) surfacing, plug/slot, fillet, groove
When a bead or beads are used to place a layer of weld metal over a surface, it is a ______ weld.
a) plug/slot
b) fillet
c) groove
d) surface
d) surface
Whenever a wear surface can be economically reclaimed, surface welding is used to return the equipment to its original thickness.
True or False
True
Surface welding often employs a two-step procedure to reclaim worn parts.
1. A layer of _____ and less expensive weld metal is deposited on the surface to return the part to its required thickness.
A layer of ____ surface material is applied over the first layer to promote durability and extend the part’s service life.
a) harder, softer
b) softer, harder
c) thicker, thinner
d) thinner, thicker
b) softer, harder
Plug/slot welds are common on _______.
a) fillet welds
b) groove welds
c) butt
d) lap joint
d) lap joint
This method describes what type of weld.
After the two plates are welded together, place a weld all the way around the bottom edge of the hole or slot.
a) plug/slot
b) groove welds
c) butt
d) lap joint
a) plug/slot
Fillet welds are found on:
a) lap, tee, corner & groove
b) lap, tee, edge
c) lap, tee, corner, butt
d) lap, tee, corner,
d) lap, tee, corner,
Label this diagram
Toe, Throat, leg x2, face, depth of fusion
See image
The size of a _____ weld is determined by the leg length of the largest equal leg triangle that may be drawn within the cross section of the weld.
a) plug/slot
b) groove welds
c) fillet
d) lap joint
c) fillet
The strength of a _____ weld is calculated by its effective throat size.
a) plug/slot
b) groove welds
c) fillet
d) lap joint
c) fillet
* Making the actual profile size a critical variable
* the effective throat size is directly related to its size and profile.
Excessive convexity tends to produce notch effects and the over-welding can also lead to increased ______.
a) lack of fusion
b) undercut
c) distortion
d) cracks
c) distortion
Label the following 4 weld profiles
Undercut, excessive convexity, insufficient throat, acceptable profile
See image
The size of an unequal leg fillet weld is designated by:
a) the size of the face
b) the depth of the throat
c) the length of the shortest leg
d) the length of the longest leg
c) the length of the shortest leg
What are the 4 basic variations of fillet welds?
continuous
intermittent
chain intermittent
staggered intermittent
if maximum strength and rigidity is required, then _______ fillet welds on both sides of the joint would likely be indicated.
a) continuous
b) intermittent
c) chain intermittent
d) staggered intermittent
a) continuous
If the fillet weld is not required to carry a significant load, then full strength would not be a requirement and __________ fillet welds may be adequate for the job.
a) continuous
b) intermittent
c) chain intermittent
d) staggered intermittent
b) intermittent
What term does the following describe:
The length and centre-to-centre distances of the weld increments are different for each type of fillet weld.
a) groove angle
b) root face
c) pitch
d) leg length
c) pitch
________ welds are most commonly used on butt joints, but variations of ____ weld joint preparations are also employed on Tee joints, corner joints and edge joints.
a) plug/slot
b) groove welds
c) fillet
d) lap joint
b) groove welds
When determining the size of a groove weld, you need to reference its ___________
a) groove angle
b) root face
c) pitch
d) throat dimensions
d) throat dimensions
See images:
root bead, beads/passes, weld reinforcement, toe, depth of fusion, face, throat/ weld size
See image
What 3 main factors must you consider when deciding what type of groove weld to use for a joint.
- Material thickness
- cost of prep
- residual stresses leading to distortion
intended service
accessibility
total joint economy
The butt joint for a _______ groove weld is the simplest to prepare because no actual edge preparation is required.
a) j groove
b) u groove
c) vee groove
d) square groove
d) square groove
The ______ groove weld is generally restricted to joining thinner materials because it is difficult to achieve full penetration on thicker materials using manual welding processes.
a) j groove
b) u groove
c) vee groove
d) square groove
d) square groove
As a general rule, the maximum material thickness for a single-welded square groove weld is:
a) 1/16”
b) 1/8”
c) 1/4”
d) there is no max thickness
b) 1/8”
The maximum material thickness for a double-welded square groove weld is
a) 1/16”
b) 1/8”
c) 1/4”
d) there is no max thickness
c) 1/4”
The ____ groove preparation is perhaps the most widely used for materials in the 9.6 mm (3/8”) to 25.4 mm (1”) thickness range.
a) j groove
b) u groove
c) vee groove
d) square groove
c) vee groove
The ____ groove is relatively easy to prepare and offers good accessibility for full penetration welds.
a) j groove
b) u groove
c) vee groove
d) square groove
c) vee groove
_______ groove welds are used for thicker materials where there is access to the joint from both sides and for minimizing distortion through the equalization of shrinkage forces.
a) double j groove
b) double u groove
c) double vee groove
d) square groove
c) double vee groove
For a given material thickness, a ______ groove weld generally requires less weld metal compared to a single Vee groove
a) double j groove
b) double u groove
c) double vee groove
d) square groove
c) double vee groove
The advantage of the U groove preparation is that a smaller included angle is used, which requires ________ than the Vee groove.
a) less prep
b) less filler metal
c) less complexity
b) less filler metal - meaning less distortion
True or false
A double-welded joint requires less filler metal than a single-welded joint. This in turn can lead to greater overall joint economy and less distortion.
True
The J groove preparation is used where you have access to only one member of the joint and on joints set in the ______ position.
a) vertical
b) horizontal
c) overhead
d) GR
b) horizontal
An advantage of a j groove compared to a bevel groove
requires less filler metal, resulting in less residual stress & distortion
The disadvantage of the J groove compared to a bevel groove
usually costs more to prepare than a bevel groove therefore is it generally used on thicker metals.
A ______ joint is widely used for sheet metal fabrications such as tool boxes, fuel tanks, truck boxes and other equipment where a box design is an inherent characteristic.
a) j groove
b) u groove
c) vee groove
d) corner
d) corner
What are 3 types of corner joints
Flush corner
Half open corner
Open corner
6 groove welds are used on corner joints what are they?
Single bevel
single vee
double bevel
single J
single U
double J
An _____ joint is used extensively to join light gauge sheet metal fabrications.
a) j groove
b) u groove
c) vee groove
d) edge
d) edge
What weld is most commonly used when manufacturing components such as automotive fuel tanks?
a) j groove
b) u groove
c) vee groove
d) edge
d) edge
The advantage of using the edge joint for manual welding on light gauge sheet metal is that there is less danger of ______.
a) distortion
b) surface hardening
c) burn through
d) both a & c
d) both a & c
distortion and burn through
distortion is reduced by the built in rigidity
What is the main limitation of edge joints?
generally they can not withstand heavy or dynamic loads
True or False
Edge joints on thin materials are often welded autogenously (without the need for additional filler metals).
True
A tee joint is most often joined using ______
a) j groove
b) u groove
c) vee groove
d) fillet
d) fillet
To increase the strength of a ____ joint on thicker materials, full penetration welds may be required.
a) j groove
b) u groove
c) vee groove
d) Tee
d) Tee
What type of joint often combines groove and fillet welds to achieve max strength and rigidity under load?
a) j groove
b) u groove
c) vee groove
d) Tee
d) Tee
What are the 5 variations of a tee joint?
Square tee
single bevel tee
double bevel tee
single J tee
Double J tee
Like a Tee joint, the _____ joint uses fillet welds. The ___ joint is highly successful in joining materials of different thicknesses.
a) j groove
b) u groove
c) vee groove
d) lap
d) lap
The ____ joint is that it requires no special preparation, resulting in good joint economy. ____ joints can be single- or double-welded
a) j groove
b) lap
c) vee groove
d) u groove
b) lap
What joints are preferred for soldering and brazing due to; the total joining surface are is greater than that of a butt joint
a) j groove
b) vee groove
c) lap
d) u groove
c) lap
Which weld type does this describe:
Both plates are set in the same plane, the _____ joint is invariably used where maximum strength is required.
a) j groove
b) vee groove
c) lap
d) butt
d) butt
Full penetration _____ welds on butt joints are considered full strength welds.
a) corner
b) groove
c) lap
d) butt
b) groove
The _____ joint is most often selected where the welded joint is subjected to high stresses, cyclic or constantly changing loads or for other critical applications.
a) butt
b) groove
c) lap
d) corner
a) butt
What does 1GR weld position designate.
fixture horizontal, groove weld, rotated (pipe)
What does 1F weld position designate
fixture @ 45°, fillet weld
What does 2F weld position designate
fixture horizontal, fillet weld
______ joints are designed mainly to meet the loading requirements for a given set of service conditions.
a) secured
b) joined
c) welded
d) tacked
c) welded
The 2 primary considerations in deciding what joint and weld type to use are
a) strength requirements
b) load conditions.
c) deposition requirements
d) both a & b
d) both a & b
strength requirements & load conditions.
What are the top 3 considerations when proposing a joint & weldment.
- Consider the use of U or J groove joint preparations on materials thicker than 25.4 mm (1”).
- Consider intermittent fillet welding for light and steady load conditions.
- Determine the strength and loading requirements for the joint.
- Select the joint requiring the least amount of filler metal.
- Consider using a double joint preparation if it is accessible from both sides.
There are how many types of groove welds? (9-13)
3
4
5
6
5
The acronym that describes basic joints is? (2)
CWB
AWS
ASME
BCTEL
BCTEL
The number of basic joints used in welding is: (2)
2
3
4
5
5
What is the procedure for determining the size of a groove weld? (8)
a) referencing the throat dimension will indicate the size of a groove weld
b) the depth of plate thickness depicts the size of a groove weld
c) the width of the cover pass is the size of a groove weld
d) the shortest leg length is the size of a groove weld
a) referencing the throat dimension will indicate the size of a groove weld
Surfacing means: (3)
a) grinding to bare metal
b) porosity showing on the top of the weld
c) proper alignment of two joints to be welded
d) overlaying weld metal to build up a surface
d) overlaying weld metal to build up a surface
What does the G stand for when interpreting the 3G position? (18)
a) groove weld
b) grind before welding
c) a gas shielded wire is required
d) see note G on the drawing for more details
groove weld
What are the names of the different types of welds? (3)
a) vee, bevel, bead, fillet
b) fillet, vee, bevel, groove
c) groove, fillet, plug, surfacing
d) groove, vee, bevel, plug or slot
c) groove, fillet, plug, surfacing
Which joint is preferred for soldering, brazing and braze-welding operations? (16)
a) the tee joint
b) the butt joint
c) the lap joint
d) the corner joint
c) the lap joint
Which of the following is a basic type of joint? (15)
a) vee
b) edge
c) bevel
d) square
b) edge
Why are 3/8-inch plates beveled prior to welding? (11)
a) provides a path for the electrode
b) to obtain full penetration
c) for multi-pass welds
d) to prevent warpage
b) to obtain full penetration
According to W47.1, what does the designation 1GF refer to? (17)
a) a flat position groove to be roll welded
b) weld in the flat and horizontal positions
c) a fillet groove positioned at a 45-degree angle
d) a fillet and groove weld are combined in a welded joint
d) a fillet and groove weld are combined in a welded joint
A weld performed in the 1F position would be defined as: (6)
a) an edge joint placed in the flat position
b) a single J groove plate in the flat position
c) a CWB test with a backing bar welded in the flat position
d) a tee joint positioned at 45 degrees off the horizontal plane
d) a tee joint positioned at 45 degrees off the horizontal plane
What factor is necessary when deciding the type of groove for a joint? (9)
a) residual stress or distortion inflicted in the joint
b) the cost of preparation
c) material thickness
d) all of the above
d) all of the above
What does the 3 stand for when interpreting the 3F position? (19)
a) vertical position
b) overhead position
c) horizontal position
d) 3 passes are required
a) vertical position
What type of joint is used with fillet welds? (4)
tee joint
lap joint
corner joint
all of the above
all of the above
What is the advantage a U groove has over a V groove? (12)
a) there is no advantage
b) less filler metal is required
c) less skill is involved to prepare a U groove
d) it is harder and takes longer to prepare a U groove
b) less filler metal is required
What would be a basic variation of a fillet weld? (6)
a) a layer of weld metal on a flat plate to provide a hard surface
b) a multi-pass weld done on vee groove plates
c) staggered intermittent
d) all of the above
c) staggered intermittent
What is the maximum allowable material thickness in inches, when welding a square butt joint from both sides using SMAW? (9)
1/8
1/4
1/2
5/8
1/4
To help control distortion, a good joint design would include: (11)
a) welding in the overhead position
b) welding from both sides to balance passes
c) single V groove joints used for heavy sections
d) welding small multiple passes from one side, allow cooling between passes
b) welding from both sides to balance passes
Which type of joint should be selected for high stresses, dynamic or critical applications? (17)
corner joint
butt joint
tee joint
lap joint
butt joint
Which of the following joint preparations would require the least amount of filler metal on a 2-inch-thick groove weld? (12)
double U
double V
single V
single U
double U
How many basic variations of fillet welds are there? (6)
2
3
4
5
4
When would you consider using intermittent fillet welds? (6)
a) for any dynamic loads
b) for light load conditions
c) for maximum strength loads
d) on a tank floor to prevent fluid leaks
b) for light load conditions
What does the designation 1GR refer to? (18)
a) a fillet weld and a groove weld are combined in a welded joint
b) a vee groove pipe in the horizontal plane to be roll welded
c) a groove weld in the 45-degree angle
d) the weld must have a backing bar
b) a vee groove pipe in the horizontal plane to be roll welded
Which of the following is not a basic weld: (15)
edge
fillet
groove
surfacing
edge
An autogenously welded joint: (15)
a) is a laser welding process
b) uses no additional filler metal
c) requires alloy type filler metals
d) is done with an automatic process
b) uses no additional filler metal
What type of joint is a plug or slot weld often used with: (4)
tee joint
lap joint
edge joint
butt joint
lap joint
Which of the following is a type of weld? (3)
tee
butt
bevel
groove
groove
What is the primary consideration in deciding what joint and weld to use? (20)
accessibility
electrode size
welding position
strength & loading conditions
strength & loading conditions
What does the 2 refer to, when interpreting the 2F position? (19)
flat position
vertical position
horizontal position
2 passes are required
horizontal position
