Question 1

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

Question 2

In the AWS specification for carbon steel-covered arc electrodes, a 2 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

Question 3

As the percentage of ____ increases, tensile strength, toughness, and corrosion resistance increase.

Accepted Answer

A)  silicon 
B)  chromium 
C)  nickel 
D)  molybdenum

Question 4

What type of information about an electrode is given by the manufacturer?

Accepted Answer

The answer of What type of information about an electrode...

Question 5

The E6010 electrodes are designed to be used with _______ polarity.

Accepted Answer

The answer of The E6010 electrodes are designed to be...

Question 6

Which of the following would not be a part of the technical data provided for an electrode?

Accepted Answer

A)  Ability to weld on rust, oil, or paint 
B)  Number of inches of weld per welding electrode 
C)  Preheating and postheating temperatures 
D)  Cost per pound of electrodes

Question 7

Some high-temperature slags, called ____________________, solidify before the weld metal solidifies.

Accepted Answer

The answer of Some high-temperature slags, called ____________________, solidify before...

Question 8

Which group has developed the most widely used numbering and lettering system for filler metal identification ?

Accepted Answer

A)  AWS 
B)  AISI 
C)  ASTM 
D)  NEMA

Question 9

As the percentage of ____ increases, the tensile strength increases, the hardness increases, and ductility is reduced.

Accepted Answer

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

Question 10

As the percentage of carbon increases, ____ can cause hot shortness and porosity.

Accepted Answer

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

Question 11

____ indicates a rod that is heated by some other source other than electric current flowing directly through it.

Accepted Answer

A)  R 
B)  B 
C)  RB 
D)  IN

Question 12

Metal core arc welding electrodes are similar to what other type of electrodes?

Accepted Answer

A)  FCAW 
B)  GMAW 
C)  GTAW 
D)  SMAW

Question 13

What characteristic of some fluxes can help to push the weld penetration deeper?

Accepted Answer

A)  The larger mass of some bigger electrode flux coverings add a great deal of weight to the slag covering that force the weld penetration deeper. 
B)  Some fluxes act as a thermal blanket holding the heat into the weld which lets the weld penetrate deeper. 
C)  The formation of a crucible at the end of the electrode acts as a combustion chamber. 
D)  The only way to get deeper weld penetration is to turn the welder's amperage to the maximum.

Question 14

In the identification system for mild steel FCAW electrodes, for example E71T-2, the final number is used to indicate ____.

Accepted Answer

A)  the minimum tensile strength of the deposited metal 
B)  the primary welding position for which the electrode is designed 
C)  that the filler metal can be used for single or multiple pass welds 
D)  a flux cored electrode

Question 15

The E6010 electrode contains ____________________, which decomposes into the hydrogen responsible for the deep electrode penetration so desirable in pipeline welding.

Accepted Answer

The answer of The E6010 electrode contains ____________________, which decomposes...

Question 16

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 1 square inch.

Accepted Answer

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

Question 17

What is the significance of an alloy's CE number?

Accepted Answer

A)  It is a listing of the alloying elements of a filler metal. 
B)  It is an indication of how the weld will affect the surrounding metal. 
C)  It relates to the Continued Evaluation of an alloy's properties. 
D)  It is a way of Classifying the Environmental impact an alloy has.

Question 18

____________________ 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 19

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

Accepted Answer

The answer of Describe the effect of shielded metal arc...

Question 20

____ indicates a brazing filler metal.

Accepted Answer