Deck 26: Filler Metal Selection

Question 1

____ electrodes are designed to be used with AC or DCEP reverse polarity and have an organic-based flux.

A) E6010
B) E6011
C) E6013
D) E7014

Answer 1

B

Question 2

____ is a popular agricultural filler wire that can be used in single- or multiple-pass welds in all positions.

A) ER70S-2
B) ER70S-3
C) ER70S-6
D) E70T-1

Answer 2

B

Question 3

____ electrodes are designed to be used with DCEP polarity and have an organic-based flux (cellulose, C₆H₁₀O₅).

A) E6010
B) E6011
C) E6013
D) E7014

Answer 3

A

Question 4

The most widely used numbering and lettering system is the one developed by the American Society for Testing and Materials (ASTM).

Question 5

The number 4 in an E704X means ____.

A) all positions flat, horizontal, vertical, and overhead
B) horizontal fillets and flat
C) flat, horizontal, overhead, and vertical-down
D) flat only

Question 6

____ is the percentage that a 2-in. (51-mm) piece of weld will stretch before it breaks.

A) Charpy V notch
B) Yield point
C) Minimum tensile strength
D) Elongation

Question 7

One function of a flux covering is to serve as most of the filler metal in the finished weld.

Question 8

____ is the impact load required to break a test piece of weld metal.

A) Elongation
B) Charpy V notch
C) Minimum tensile strength
D) Yield point

Question 9

Shielded metal arc welding electrodes, sometimes referred to as welding rods, arc welding rods, stick electrodes, or simply electrodes, have four parts.

Question 10

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

A) Yield point
B) Elongation
C) Minimum tensile strength
D) Charpy V notch

Question 11

____ is a good general purpose filler wire that has the highest levels of manganese and silicon.

A) ER70S-2
B) ER70S-3
C) ER70S-6
D) ER70T-1

Question 12

For fabricating structural and low alloy steels, the core wires of the electrode use inexpensive rimmed or low carbon steel.

Question 13

Information given by manufacturers include preheating and postheating temperatures.

Question 14

Welding fluxes do not affect the penetration and contour of the weld bead.

Question 15

Information given by manufacturers include the number of welding electrodes per pound.

Question 16

____ is the load in pounds that would be required to break a section of sound weld that has a cross-sectional area of 1 sq in.

A) Elongation
B) Charpy V notch
C) Minimum tensile strength
D) Yield point

Question 17

____ aluminum has the lowest percentage of alloy agents of all of the aluminum alloys, and it melts at 1215 degrees F (657 degrees C).

A) ER1100
B) ER5356
C) ER4043
D) ER5556

Question 18

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

Question 19

As the percentage of chromium increases, tensile strength, hardness, and corrosion resistance increase with some decrease in ductility.

Question 20

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

Question 21

____________________ is the most commonly used electrode for agricultural welding.

Question 22

The prefix ____________________ indicates a filler metal that is supplied for use as either a current-carrying electrode or in rod forms.

Question 23

A(n) ____________________ is the primary metal source for a weld.

Question 24

The prefix letter ____________________ indicates an arc welding electrode.

Question 25

One function of a(n) ____________________ may be to provide some of the alloying elements.