Cutting Chapter 6

Question 1

Who do you go if you are given the task to weld something and you dont have the credentials.

Answer 1

General Foreman
Superintendent
Project Manager
Quality Engineer

Question 2

What is the typical ASME welder qualification test?

Answer 2

To weld pipe in the 6G using an open root.

Question 3

What qualifies the ASME welder qualification test?

Answer 3

The welder to weld the pipe and platein all positions.

Question 4

The welder only qualifies on f3 electrodes on both plate and pipe if…

Answer 4

If the f3 electrodes are used all the way out.

Question 5

If f3 electrodes are used for welding the root and f4 electrodes are used for filler, the welder qualifies to weld pipe or plate with f4 as long as what?

Answer 5

Backing is used.

Question 6

What does the letter G designate?

Answer 6

A groove weld

Question 7

/What does the letter F designate

Answer 7

FIllet weld

Question 8

For plate welding, what are the positions designated by?

Answer 8

1, 2, 3, 4

Question 9

1

Answer 9

Flat Position Welding

Question 10

2

Answer 10

Horizontal Position Welding

Question 11

3

Answer 11

Vertical Position Welding

Question 12

4

Answer 12

Overhead Position Welding

Question 13

A sample is placed in a tensile testing machine and is pulled until it breaks.

Answer 13

Tensile Test

Question 14

Tensile Test is sometimes used to determine what?

Answer 14

If the the weld performs as well as the base metal.

Question 15

Tensile Test in most cases is performed to determine specific characteristics of the weldment, such as…

Answer 15

strength

ductility (stretch)

Question 16

A nondestructive method for locating defects that are open to the surface

Answer 16

Liquid Penetrant Inspection (PT)

Question 17

PT can’t detect what

Answer 17

internal defects

Question 18

Properly done at all times, visual inspection can detect what?

Answer 18

More than 75% of discontinuities before they are found by more expensive and time-consuming nondestructive examination methods

Question 19

Prior to welding, the base metal should be what

Answer 19

examined for conditions that may cause weld defects.

Question 20

Inspection: What should also be inspected

Answer 20

Dimensions, including edge preparation should also be confirmed by measurements.

Question 21

What should be made asap when problems or potential problems are found before proceeding any further?

Answer 21

Corrections

Question 22

A uniform concave or convex face, although a slightly nonuniform face is acceptable?

Answer 22

Ideal Fillet

Question 23

The convexity of a fillet weld or individual surface bead will be approximately —— times the actual face width or witdth of the individual surface bead plus——

Answer 23

.07

1/16”

Question 24

A groove melted into the base metal beside the weld

Answer 24

Undercut

Question 25

Undercut is the result of---------removing more metal from the joint face than is replaced by weld metal

Answer 25

the arc

Question 26

On multilayer welds, undercut may also occur at the point where a layer ------

Answer 26

Meets the wall of a groove

Question 27

Many welders confuse incomplete joint penetration with what

Answer 27

Incomplete fusion

Question 28

It is possible to have good penetration without complete root fusion.

Answer 28

T

Question 29

The failure of a welding process to fuse, or join together, layers of weld metal or weld metal and base metal.

Answer 29

Incomplete fusion

Question 30

Caused by improper welding techniques or contamination.

Answer 30

Most porosity

Question 31

May cause inadequate shielding gas to be formed . As a result, parts of the weld are left unprotected.

Answer 31

Improper welding techniques

Question 32

Produce Porosite 3 things

Answer 32

Oxy in air Moisture in flux Moisture on base metal that dissolves in the weld pool can become trapped.

Question 33

May be located throughout single-pass welds or through out several passes in multiple-pass welds

Answer 33

Uniformly Scattered Porosity

Question 34

A localized grouping of pores that results from improperly starting or stopping the welds.

Answer 34

Clustered Porosity

Question 35

May be aligned along a weld interface, the root of a weld, or a boundary between weld beads.

Answer 35

Linear Porosity

Question 36

Normally extends from the root of the weld toward the faace. aka Wormholes

Answer 36

Piping Porosity

Question 37

WPS variable are identified as ------- or ------

Answer 37

Essential | Non essential

Question 38

Items in the welding procedure specification that cant be changed w/o requalifying the welding procedure.

Answer 38

Essential Variable

Question 39

Items in the WPS that may be changed within a range identified by the code, but that dont affect the qualification status.

Answer 39

Nonessential Variable

Question 40

Ex of Essential Varianle

Answer 40

``` Filler Metal Classification Material Thickness Joint Design Type of Base Metal Welding Process ```

Question 41

The WPS os qualified for use by welding test coupons and by testing the coupons in accordance with the applicable code. A test weld is made and test coupons are cut from it. The test coupons are used to make tensile tests, root bends, and face bends as required by code. The test results are then recorded on a document aka...

Answer 41

PQR Procedure Qualification Method

Question 42

A private organization that doesn't actually prepare standards, Instead it adopts standards that it feels are of value of public interest.

Answer 42

American National Standard Institute