Question 1

Describe the effect of shielded metal arc welding electrode selection on distortion.

Accepted Answer

Welding electrodes that will operate on low-amperage settings will have less heat input and cause less distortion.Welding electrodes that have a high rate of deposition (fills the joint rapidly) and can travel faster will also cause less distortion.For example, the flux on an E7024 has 50% iron powder, which gives it a faster fill rate and allows it to travel faster, resulting in less distortion of the metal being welded.

Question 2

​Which of the following is a function of the core wire?

Accepted Answer

A)  ​To provide some of the alloying elements. 
B)  ​To provide an arc stabilizer. 
C)  ​To serve as an insulator. 
D)  ​To carry the welding current. 
A)  ​To provide some of the alloying elements. 
B)  ​To provide an arc stabilizer. 
C)  ​To serve as an insulator. 
D)  ​To carry the welding current. D

Question 3

​The melting point of magnesium is ____.

Accepted Answer

A)  ​858°F 
B)  ​1202°F to 858°F below its boiling point 
C)  ​1300°F 
D)  ​858°F to 1202°F above its boiling point 
A)  ​858°F 
B)  ​1202°F to 858°F below its boiling point 
C)  ​1300°F 
D)  ​858°F to 1202°F above its boiling point B

Question 4

____________________ is the percentage that a 2-inch piece of weld will stretch before it breaks.

Accepted Answer

The answer of ____________________ is the percentage that a 2-inch...

Question 5

For fabricating structural and low alloy steels, the core wires of the electrode use ____.

Accepted Answer

A)  high carbon steel 
B)  high nickel alloys 
C)  the approximate composition of the material to be welded 
D)  low carbon steel 
A)  high carbon steel 
B)  high nickel alloys 
C)  the approximate composition of the material to be welded 
D)  low carbon steel

Question 6

What are the functions of the flux covering?

Accepted Answer

*To provide some of the alloying element

Question 7

____ indicates a filler metal that is supplied for use as either a current carrying electrode or in rod forms.

Accepted Answer

A)  E 
B)  R 
C)  ER 
D)  EC 
A)  E 
B)  R 
C)  ER 
D)  EC

Question 8

In the AWS specification for stainless steel-covered arc electrodes, the letter "L" added to the right of the AISI number indicates ____.

Accepted Answer

A)  a lime base coating 
B)  a low carbon stainless welding electrode 
C)  the electrode is a carbide former 
D)  the filler metals are stabilized to prevent chromium-carbide precipitation 
A)  a lime base coating 
B)  a low carbon stainless welding electrode 
C)  the electrode is a carbide former 
D)  the filler metals are stabilized to prevent chromium-carbide precipitation

Question 9

​Which electrode is sometimes referred to as being "Lo-Hi"?

Accepted Answer

A)  ​E6010 
B)  ​E6011 
C)  ​E6012 
D)  ​E7018 
A)  ​E6010 
B)  ​E6011 
C)  ​E6012 
D)  ​E7018

Question 10

​Which of the following should be considered when choosing a welding electrode?

Accepted Answer

A)  ​metal thickness 
B)  ​surface condition 
C)  ​welder's power range 
D)  ​All of the above 
A)  ​metal thickness 
B)  ​surface condition 
C)  ​welder's power range 
D)  ​All of the above

Question 11

​The AWS identification system for covered nonferrous electrodes is based on the ____________ or symbols of the major alloy(s) or the metal's identification number.

Accepted Answer

The answer of ​The AWS identification system for covered nonferrous...

Question 12

The minimum ____________________ is the load in pounds that would be required to break a section of sound weld that has a cross-sectional area of one square inch.

Accepted Answer

The answer of The minimum ____________________ is the load in...

Question 13

Explain what the ENi special-purpose electrodes are for.

Accepted Answer

The nickel arc welding electrodes are de

Question 14

In the identification system for mild steel FCAW electrodes, the first number after the E indicates ____.

Accepted Answer

A)  the minimum tensile strength of the deposited metal 
B)  the primary welding position for which the electrode is designed 
C)  usability and performance capabilities 
D)  a flux cored electrode 
A)  the minimum tensile strength of the deposited metal 
B)  the primary welding position for which the electrode is designed 
C)  usability and performance capabilities 
D)  a flux cored electrode

Question 15

____ is an austenite former.

Accepted Answer

A)  Silicon 
B)  Chromium 
C)  Nickel 
D)  Molybdenum 
A)  Silicon 
B)  Chromium 
C)  Nickel 
D)  Molybdenum

Question 16

The AWS specifications for aluminum and aluminum alloy filler metals are ____ for covered arc welding electrodes.

Accepted Answer

A)  A5.1 
B)  A5.3 
C)  A5.5 
D)  A5.10 
A)  A5.1 
B)  A5.3 
C)  A5.5 
D)  A5.10

Question 17

The ____________________ is the point in low and medium carbon steels at which the metal begins to stretch when force (stress) is applied after which it will not return to its original length.

Accepted Answer

The answer of The ____________________ is the point in low...

Question 18

In the AWS numbering system for carbon steel filler metal for GMAW, the last number indicates ____.

Accepted Answer

A)  a cut length "roo" type electrode 
B)  solid wire 
C)  the minimum tensile strength of the deposited metal 
D)  the filler metal composition and the weld's mechanical properties 
A)  a cut length "roo" type electrode 
B)  solid wire 
C)  the minimum tensile strength of the deposited metal 
D)  the filler metal composition and the weld's mechanical properties

Question 19

As the percentage of ____ increases, it can cause weld brittleness, reduced shock resistance, and increased cracking.

Accepted Answer

A)  carbon 
B)  sulfur 
C)  phosphorus 
D)  manganese 
A)  carbon 
B)  sulfur 
C)  phosphorus 
D)  manganese

Question 20

In the AWS specification for carbon steel-covered arc electrodes, a 1 to the right of the tensile strength indicates the following welding position(s): ____.

Accepted Answer

A)  flat, horizontal, overhead, and vertical-down 
B)  all positions flat, horizontal, vertical, and overhead 
C)  flat only and is no longer used 
D)  horizontal fillets and flat 
A)  flat, horizontal, overhead, and vertical-down 
B)  all positions flat, horizontal, vertical, and overhead 
C)  flat only and is no longer used 
D)  horizontal fillets and flat

Exam 28: Filler Metal Selection

Describe the effect of shielded metal arc welding electrode selection on distortion.

​Which of the following is a function of the core wire?

​The melting point of magnesium is ____.

____________________ is the percentage that a 2-inch piece of weld will stretch before it breaks.

For fabricating structural and low alloy steels, the core wires of the electrode use ____.

What are the functions of the flux covering?

____ indicates a filler metal that is supplied for use as either a current carrying electrode or in rod forms.

In the AWS specification for stainless steel-covered arc electrodes, the letter "L" added to the right of the AISI number indicates ____.

​Which electrode is sometimes referred to as being "Lo-Hi"?

​Which of the following should be considered when choosing a welding electrode?

​The AWS identification system for covered nonferrous electrodes is based on the ____________ or symbols of the major alloy(s) or the metal's identification number.

The minimum ____________________ is the load in pounds that would be required to break a section of sound weld that has a cross-sectional area of one square inch.

Explain what the ENi special-purpose electrodes are for.

In the identification system for mild steel FCAW electrodes, the first number after the E indicates ____.

____ is an austenite former.

The AWS specifications for aluminum and aluminum alloy filler metals are ____ for covered arc welding electrodes.

The ____________________ is the point in low and medium carbon steels at which the metal begins to stretch when force (stress) is applied after which it will not return to its original length.

In the AWS numbering system for carbon steel filler metal for GMAW, the last number indicates ____.

As the percentage of ____ increases, it can cause weld brittleness, reduced shock resistance, and increased cracking.

In the AWS specification for carbon steel-covered arc electrodes, a 1 to the right of the tensile strength indicates the following welding position(s): ____.

Introduction to Welding

Safety in Welding

Shielded Metal Arc Equipment, Setup, and Operation

Shielded Metal Arc Welding of Plate

Shielded Metal Arc Welding of Pipe

Shielded Metal Arc Welding Aws Sense Certification

Flame Cutting

Plasma Arc Cutting

Related Cutting Processes

Gas Metal Arc Welding Equipment, Setup, and Operation

Gas Metal Arc Welding

Flux Cored Arc Welding Equipment, Setup, and Operation

Flux Cored Arc Welding

Gas Metal Arc and Flux Cored Arc Welding of Pipe

Gas Metal Arc and Flux Cored Arc Welding Aws Sense Certification

Gas Tungsten Arc Welding Equipment, Setup, Operation, and Filler Metals

Gas Tungsten Arc Welding of Plate

Gas Tungsten Arc Welding of Pipe

Gas Tungsten Arc Welding Plate and Pipe Aws Sense Certification

Shop Math and Weld Cost

Reading Technical Drawings

Welding Joint Design and Welding Symbols

Fabricating Techniques and Practices

Welding Codes and Standards

Testing and Inspection of Welds

Welding Metallurgy

Weldability of Metals

Welding Automation and Robotics

Other Welding Processes

Oxyfuel Welding and Cutting Equipment, Setup, and Operation

Oxyacetylene Welding

Brazing, Braze Welding, and Soldering

Filters

Which of the following is a function of the core wire?

The melting point of magnesium is ____.

Which electrode is sometimes referred to as being "Lo-Hi"?

Which of the following should be considered when choosing a welding electrode?

The AWS identification system for covered nonferrous electrodes is based on the ____________ or symbols of the major alloy(s) or the metal's identification number.