AG Mechanics CDE Practice Exam

When stick welding, if the arc is too long, what characteristic is likely to be observed?

Dark bead Porous weld Splattered bead Weakened arc

Correct Answer:

Dark bead

Explanation:

When stick welding, if the arc is too long, a characteristic that is likely to be observed is a dark bead. A dark bead indicates that the welding arc was not properly shielding the weld pool, leading to incomplete penetration and an unsatisfactory weld. The other options are incorrect because: - Porous weld would typically result from issues such as contamination or improper gas coverage, not specifically from having an arc that is too long. - Splattered bead would indicate that the welding parameters are not set correctly, but specifically not related to the length of the arc. - Weakened arc is not a common characteristic attributed to having an arc that is too long; it may indicate issues with the power supply or other factors.

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