Labeling for dual fuels should be performed at what interval when there is a change of direction?

Labeling for dual fuels should be performed at what interval when there is a change of direction?

• A. Every five feet
• B. Every ten feet
• C. Every 15 feet
• D. At every change of direction only

Answer: (B)

Labeling dual-fuel piping must be placed at regular intervals to keep fuel information visible along the entire run. The standard sets a maximum spacing of ten feet, so labels should appear every ten feet. This ensures that even as the line bends or changes direction, the fuel type remains identifiable without having to backtrack. At a change of direction you also want labeling readily visible, but the primary spacing guideline is the ten-foot interval. Higher or lower spacing like every five feet or every fifteen feet would not align with the established maximum, and the option of labeling only at direction changes ignores the need for consistent visibility along straight sections.

Labeling dual-fuel piping must be placed at regular intervals to keep fuel information visible along the entire run. The standard sets a maximum spacing of ten feet, so labels should appear every ten feet. This ensures that even as the line bends or changes direction, the fuel type remains identifiable without having to backtrack. At a change of direction you also want labeling readily visible, but the primary spacing guideline is the ten-foot interval. Higher or lower spacing like every five feet or every fifteen feet would not align with the established maximum, and the option of labeling only at direction changes ignores the need for consistent visibility along straight sections.