Module 15 joint and weld types

Question 1

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

Answer 1

C) butt, Tee, lap, edge, and corner

Question 2

Question to page 21 what type of joint is shown in figure 27
A) plug
B) tee
C) butt
D) lap

Answer 2

D) lap

Question 3

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

Answer 3

A) lie in the same plane

Question 4

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

Answer 4

A) groove, fillet, plug and surfacing

Question 5

Name the five types of groove welds

Answer 5

Square
Bevel
Vee
J
U

Question 6

On what type of joint would you most likely find groove welds?
A) edge
B) butt
C) fillet
D) lap

Answer 6

B) butt

Question 7

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

Answer 7

D) first pass or penetration bead

Question 8

Name the four types of fillet welds

Answer 8

Continuous
Intermittent
Chain intermittent
Staggered intermittent

Question 9

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

Answer 9

C) Tee, lap, corner

Question 10

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

Answer 10

A) leg length of the largest leg triangle that may be drawn within the cross-section of the weld

Question 11

To check the size of a convex Philip welded 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

Answer 11

A) leg length of the largest leg triangle that may be drawn within the cross-section of the weld

Question 12

The size of groove welds is determined by
A) width between toes
B) throat dimension
C) included angle
D) root radius

Answer 12

B) throat dimension

Question 13

What is the size of the groove weld in figure 28 on page 22.
A) 9.6 mm (3/8”)
B) 13 mm(1/2”)
C) 14 mm ( 9/16”)
D) 16 mm ( 5/8”)

Answer 13

B) 13 mm(1/2”)

Question 14

But maybe 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

Answer 14

D) place plug or slot welds along the joint

Question 15

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

Answer 15

B) to obtain complete penetration

Question 16

Edge joints are most often used on
A) sheet metal
B) pipe
C) sheet steel over 13 mm (1/2”) thick
D) castings

Answer 16

A) sheet metal

Question 17

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

Answer 17

A) double U

Question 18

List three reasons why excessive convexity on a fillet weld is considered a welded fault

Answer 18

Costly overwhelming, which adds no strength to the joint

Notch affect

Can contribute to excessive distortion

Question 19

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

Answer 19

C) bevel &J

Question 20

What is the main advantage of the lap joint?

Answer 20

No edge preparation is required

Question 21

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-Faas metals
C) when working with thicker materials where full penetration is desired
D) when preparing to weld the joint with GMAW

Answer 21

C) when working with thicker materials where full penetration is desired

Question 22

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

Answer 22

B) groove weld

Question 23

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

Answer 23

D) vertical position

Question 24

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

Answer 24

C) strength and loading requirements

Question 25

Selecting a joint preparation that requires the least amount of filler metal
A) but while there’s out of business
B) result in poor penetration
C) make it very difficult to weld
D) minimize distortion and lower cost factors

Answer 25

D) minimize distortion and lower cost factors