The maximum pressure indication on a pressure gauge is called the _______ of the gauge.

• A. Range
• B. Scale
• C. Limit
• D. Rating

Answer: (A)

Understanding how a pressure gauge is rated helps here: the range defines the span of pressures the gauge can read, from its minimum to its maximum. The maximum pressure the gauge can indicate is simply the upper end of that range. For example, a gauge labeled 0–160 psi can show readings up to 160 psi, and that upper limit is determined by its range. The scale shows the individual marks you read, but it’s the range that sets the overall capacity. A limit or rating generally refers to safety or suitability criteria rather than the gauge’s reading span, and “rating” is a broader term not as precise for this purpose.