What does a pressure gauge display?

What does a pressure gauge display?

• A. The pressure inside a cylinder (PSI).
• B. The thickness between two points.
• C. The starting hole location.
• D. The torque applied to a fastener.

Answer: (A)

A pressure gauge shows how much pressure is present inside a vessel or piping system, typically reading in units like pounds per square inch (PSI) or kilopascals. This helps ensure the system operates within safe and designed limits by signaling whether the internal pressure is too low or too high. The gauge doesn’t measure how thick something is, where a hole starts, or how much twisting force is on a fastener. Those measurements come from calipers or micrometers for thickness, drilling plans for hole location, and a torque wrench for applied torque, respectively.

A pressure gauge shows how much pressure is present inside a vessel or piping system, typically reading in units like pounds per square inch (PSI) or kilopascals. This helps ensure the system operates within safe and designed limits by signaling whether the internal pressure is too low or too high. The gauge doesn’t measure how thick something is, where a hole starts, or how much twisting force is on a fastener. Those measurements come from calipers or micrometers for thickness, drilling plans for hole location, and a torque wrench for applied torque, respectively.