GMAW Electrode Review- Solid Carbon Steel Electrodes (WDEQ23)

The learner will define the classification terms of solid GMAW welding electrodes.

Author - Jessica Lloyd


Question 1:

What is the AWS specification for carbon steel GMAW electrodes?

Answer 1:

A5.18

Answer 2:

D1.1

Answer 3:

A5.20

Answer 4:

CS5.18


Correct Answer:

A5.18


Question 2:

Use the label provided to answer this question: What is the electrode diameter in inches?

Question Image

Answer 1:

.03

Answer 2:

.044

Answer 3:

.045

Answer 4:

.035


Correct Answer:

.035


Question 3:

Which electrode diameter is larger?

Answer 1:

.045

Answer 2:

.035


Correct Answer:

.045


Question 4:

For the wire classification, what part tells you the wire is part of the electrical circuit?

Answer 1:

E

Answer 2:

R

Answer 3:

70

Answer 4:

S

Answer 5:

6


Correct Answer:

E


Question 5:

What part of the classifcation tells you the minimum tensile strength?

Answer 1:

E

Answer 2:

R

Answer 3:

70

Answer 4:

S

Answer 5:

6


Correct Answer:

70


Question 6:

From the classification, how do you determine the actual rated tensile strength in pounds per square inch? 

Answer 1:

70X 1000 = 70,000 PSI

Answer 2:

70 is the strength in PSI

Answer 3:

70 x 100= 7000 PSI


Correct Answer:

70X 1000 = 70,000 PSI


Question 7:

What part of the classification tells you the wire is also available in filler rod form?

Answer 1:

E

Answer 2:

R

Answer 3:

70

Answer 4:

S

Answer 5:

6


Correct Answer:

R


Question 8:

For what other welding process might you use a rod with the classification ER70S-6?

Answer 1:

GTAW

Answer 2:

SMAW

Answer 3:

FCAW


Correct Answer:

GTAW


Question 9:

Which electrode has greater strength capabilities?

Answer 1:

 ER70S-6

Answer 2:

 ER80S-6

Answer 3:

They're the same


Correct Answer:

 ER80S-6


Question 10:

What part of the classification tells you the wire is solid?

Answer 1:

E

Answer 2:

R

Answer 3:

70

Answer 4:

S

Answer 5:

6


Correct Answer:

S


Question 11:

There are two other types of electrodes represented by the letters T and C. These letters stand for:

Answer 1:

T for tubular and C for consumable

Answer 2:

T for tubular and C for cored

Answer 3:

T for tubular and C for flux-cored


Correct Answer:

T for tubular and C for cored


Question 12:

What part of the classification tells you about cleaning and deoxidizing agents as well as electrode usability and the shielding gas requirements?

Answer 1:

E

Answer 2:

R

Answer 3:

70

Answer 4:

S

Answer 5:

6


Correct Answer:

6


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