Deck 22: Welding Joint Design and Welding Symbols

Question 1

Which of the following is true about choosing a joint design?

A) The ability of a welded joint to withstand stress depends mostly on weld integrity not joint design.
B) Base metal does not play a part in joint design.
C) The rate of travel, penetration, deposition rate, and heat input affect the welds used on some joint designs.
D) The least suitable welding position for most joints is the flat position because it is generally not as strong.

Answer 1

C

Question 2

The strength value of a seam weld is placed ____ the weld symbol.

A) to the right of
B) to the left of
C) above
D) below

Answer 2

B

Question 3

Which type of weld joint can be fitted together so that the joint forms a V-groove or square butt joint?

A) Butt
B) Tee
C) Outside corner
D) Edge

Answer 3

C

Question 4

The ____ joint is often the best choice for horizontal butt welding.

A) double V
B) square
C) double J
D) bevel

Question 5

What does the term faying surface relate to?

A) The surface of a joint that will be melted during the weld.
B) The frayed edges of welder's pants, shirt, or other clothing.
C) The surface that cannot be seen directly such as the inside of a pipe weld joint.
D) It is the outside of the pipe or sides of a weld joint that have been cleaned for welding.

Question 6

Holes in the other side member of a joint for plug welding are indicated by placing the weld symbol ____ the reference line.

A) above and below
B) next to
C) below
D) above

Question 7

What has to be done to ensure that the weld has 100% penetration on thick plate or pipe?

A) The part must be preheated to above 350°F (175°C) before welding starts.
B) The welding machine needs to be set on its maximum amperage setting.
C) Make the molten weld pool as large as possible so it will melt all the way through.
D) The edges of the weld plate or pipe must have some type of groove made before welding.

Question 8

Holes in the arrow side member of a joint for plug welding are indicated by placing the weld symbol ____ the reference line.

A) next to
B) above and below
C) below
D) above

Question 9

____ can ensure 100% joint fusion at the root and remove discontinuities of the root pass.

A) Tack welding
B) Single bevels
C) Double bevels
D) Back gouging

Question 10

On thin sections it is often possible to make full penetration welds using a(n) ____ joint.

A) square butt
B) lap
C) tee
D) outside corner

Question 11

The forces causing stresses in welded joints are ____.

A) joint position, layout, base metal, and groove type
B) tensile, compression, bending, torsion, and shear
C) tensile, stretching, heat, and penetration
D) tensile, velocity, chemistry, stretch, and compression

Question 12

In the ____ position, the pipe is vertical to the horizon and the weld is made horizontally around the pipe.

A) horizontal rolled 1G
B) horizontal fixed 5G
C) vertical 2G
D) inclined 6G

Question 13

When the length of a seam weld is indicated on the symbol, it is shown ____ the weld symbol.

A) to the left of
B) to the right of
C) above
D) below

Question 14

In a(n) ____ joint the edges of the metal are brought together at an angle, usually around 90 degrees to each other.

A) butt
B) tee
C) outside corner
D) edge

Question 15

In a(n) ____ joint the edges of the metal overlap so the thickness of the joint is approximately equal to the combined thickness of both pieces of metal.

A) tee
B) lap
C) outside corner
D) edge

Question 16

For most welding processes, plates that are thicker than ____ may be grooved on both the inside and outside of the joint.

A) 1/4 inch
B) 3/8 inch
C) 1/2 inch
D) 5/8 inch

Question 17

In the ____ position, the pipe is parallel to the horizon and the weld is made vertically around the pipe.

A) inclined with a restriction ring 6GR
B) horizontal fixed 5G
C) vertical 2G
D) inclined 6G

Question 18

In a(n) ____ joint the metal surfaces are placed together so the edges are even.

A) edge
B) outside corner
C) tee
D) lap

Question 19

In the ____ position, the pipe is fixed in a 45 degree inclined angle, and the weld is made around the pipe.

A) inclined with a restriction ring 6GR
B) horizontal fixed 5G
C) vertical 2G
D) inclined 6G

Question 20

In a(n) ____ joint the edges of the metal meet so that the thickness of the joint is approximately equal to the thickness of the metal.

A) tee
B) lap
C) butt
D) outside corner

Question 21

Which of the following is not a classification of a type of weld?

A) Surface
B) Plug
C) Face
D) Seam

Question 22

The terms arrow side , other side , and both sides are used to indicate the ____.

A) weld location with respect to the joint
B) dimensions of the part
C) type of joint
D) root opening

Question 23

Should the backing strip be left on the finished weld or removed following welding? How is that indicated?

Question 24

List the reasons for preparing the faying surfaces for welding.

Question 25

What does the term prequalified joint mean?

A) It means that the welder must be qualified before they can make the weld.
B) It means that the weld has been inspected and is ready to be welded.
C) It refers to a joint that has been tested and found to be reliable.
D) The boss has looked at the weld and feels it is ready to be tested.

Question 26

The size of the root face is important to ensure good ____________________.

Question 27

A(n) ____________________ is designated by a right triangle.

Question 28

____________________ joints are usually welded on only one side.

Question 29

How might joint design influence welding cost?

Question 30

The ____________________ is added to the basic welding symbol when it is necessary to designate the welding specifications, procedures, or other supplementary information needed to make the weld.

Question 31

The purpose of a(n) ____________________ is to join parts together so that the stresses are distributed.

Question 32

Describe how the members of a tee joint come together.

Question 33

On larger welding jobs, who usually determines the best type of joint to be used?

A) Welder
B) Welding engineer
C) CAD artist
D) Customer

Question 34

The term ____________________ refers to the way pieces of metal are put together or aligned with each other.

Question 35

What type of edge preparation for a butt joint on a thick section of magnesium would need to be made?

A) U-groove
B) Single bevels
C) V-groove
D) Back gouging

Question 36

Describe the four basic plate welding positions for grooves and fillet welds.

Question 37

It is easier for a crack to propagate through a continuous weld than it is on an ____________________ weld where it has to restart at the beginning of each weld.

Question 38

____________________ are a shorthand language for the welder.

Question 39

The ____________________ of seam welds is designated as the minimum acceptable shear strength in pounds per linear inch.

Question 40

The faying surface can be shaped before welding to increase the weld's strength; this is called ____________________.