Which device measures the intensity of the fluid pressure in a hydraulic system?

• A. Hydraulic pressure gauge
• B. Coil inductor
• C. Hydraulic pump
• D. Heat exchange

Answer: (A)

Measuring fluid pressure in a hydraulic system is done with a pressure-measuring instrument. A hydraulic pressure gauge is designed for this purpose, converting the fluid pressure into a readable value on a dial or digital display. This allows you to see how much pressure the fluid is carrying, which is crucial for ensuring actuators receive the right force and for diagnosing system issues.

Other devices serve different roles: a coil inductor is an electrical component used to store energy in a magnetic field, not to measure pressure; a hydraulic pump adds energy to the fluid to create flow and pressure; a heat exchanger transfers heat between fluids and does not measure pressure.