In a color-coded blueprint, which line color indicates a gas line?

In a color-coded blueprint, which line color indicates a gas line?

• A. Water line
• B. Gas line
• C. Electrical line
• D. Sewer line

Answer: (B)

Color coding on blueprints helps you identify different systems at a glance. Gas lines are shown in yellow because yellow stands out and signals flammable material, so workers recognize and treat them with caution. Water lines are usually blue for cold or red for hot, sewer lines are often green, and electrical lines are colored distinctly (often orange or another standard color). So the line color that indicates a gas line is yellow.

Color coding on blueprints helps you identify different systems at a glance. Gas lines are shown in yellow because yellow stands out and signals flammable material, so workers recognize and treat them with caution. Water lines are usually blue for cold or red for hot, sewer lines are often green, and electrical lines are colored distinctly (often orange or another standard color). So the line color that indicates a gas line is yellow.