What type of device is used to indicate the pressure of a fluid and has a numeric scale?

What type of device is used to indicate the pressure of a fluid and has a numeric scale?

• A. Pressure gauge
• B. Flow meter
• C. Flow switch
• D. Thermometer

Answer: (A)

A device that translates fluid pressure into a readable numeric value is a pressure gauge. It couples the pressure to a sensing element (like a bourdon tube) so that the pressure moves a pointer across a calibrated scale or provides a digital readout, giving a specific pressure value in units such as psi, bar, or kPa. This is the instrument designed to indicate how much pressure is present in the system. The other options measure different properties: a flow meter tracks how much fluid passes per unit time, a flow switch detects whether flow is present and may trigger actions, and a thermometer measures temperature. None of those provide a direct numeric readout of fluid pressure.

A device that translates fluid pressure into a readable numeric value is a pressure gauge. It couples the pressure to a sensing element (like a bourdon tube) so that the pressure moves a pointer across a calibrated scale or provides a digital readout, giving a specific pressure value in units such as psi, bar, or kPa. This is the instrument designed to indicate how much pressure is present in the system. The other options measure different properties: a flow meter tracks how much fluid passes per unit time, a flow switch detects whether flow is present and may trigger actions, and a thermometer measures temperature. None of those provide a direct numeric readout of fluid pressure.