Question

which of the following best explains how arc length affects gtaw weld quality?
a a shorter arc creates too much heat.
b a steady short arc allows for better control and less heat spread.
c arc length does not matter if the filler rod is used correctly.
d a longer arc produces cleaner welds.

Explanation:

GTAW (Gas Tungsten Arc Welding) requires precise heat and arc control. A steady short arc minimizes heat spread (reducing distortion) and enhances control over the weld pool, improving quality. Shorter arcs do not create excessive heat (A is wrong); arc length always matters (C is wrong); longer arcs cause unstable heat and contamination (D is wrong).

Answer:

B. A steady short arc allows for better control and less heat spread.