Green zone on a gauge indicates what?

• A. Deficient
• B. Low
• C. Normal
• D. Appropriate for zone over pressure

Answer: (D)

The green zone on a gauge shows the pressure is in the safe, intended operating range. It signals that the system is within the limits the equipment is designed to handle, including the tolerance for over-pressure conditions managed by the safety and control systems. Being in this zone means operations are acceptable and protected from under- or over-pressurization problems. That’s why the best answer describes the green band as appropriate for the zone over pressure. The green area isn’t pointing to a deficiency or a low reading; it’s indicating the system is operating within the designated safe zone.