Red Seal Welding Practice Exam

What's the cause of narrow high bead while SMAW?

1. Too long arc length

2. Too high current

3. Too short arc length

4. Incorrect electrode angle

The correct answer is: Too short arc length

A narrow high bead while SMAW can be caused by a few factors, but the most common reason is a too short arc length. This means that the distance between the electrode and the workpiece is too small, resulting in a concentrated and high heat input. This can lead to a bead with a narrow and tall profile. The other options, such as a too long arc length or too high current, can also contribute to a narrower bead, but they are not the primary cause. Incorrect electrode angle can also affect the shape of the bead, but it is not directly related to the width of the bead itself. It is important to maintain a proper arc length to achieve the desired bead profile in SMAW welding.