The dead weight pressure gauge tester operates on the principle of_______________?
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Answer: A. Pascal’s law
Explanation
A dead weight pressure gauge tester applies a known weight over a precision piston area. The fluid beneath the piston transmits this applied force uniformly throughout the internal hydraulic liquid. This transmission of pressure without loss in enclosed fluids is the fundamental principle of Pascal's law. Pascal's law states that pressure applied to an enclosed fluid is transmitted undiminished in all directions. Dead weight testers serve as primary calibration standards for industrial pressure gauges and transducers. Balancing known masses against fluid pressure generates highly accurate calibration reference points.
Calibration laboratories use dead weight testers to verify the accuracy of pressure instruments used in plants. Industrial safety standards require regular calibration of pressure gauges in high-pressure steam systems. Understanding hydrostatic pressure principles ensures technicians operate calibration equipment safely and accurately. Dalton's law deals with partial pressures exerted by individual gases in a non-reacting mixture. Newton's law of viscosity relates shear stress to velocity gradients in flowing fluid mechanics. Avogadro's hypothesis governs molecular gas volumes rather than hydraulic fluid pressure transmission.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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