Topic: Metrology and Inspection
Which of the following pressure gauge is generally used for the calibration of other pressure measuring gauges
- A. Bourdon's tube pressure gauge
- B. Diaphragm pressure gauge
- C. Dead weight pressure gauge
- D. Manometer gauge
Answer: C. Dead weight pressure gauge
Explanation: A dead weight pressure gauge (dead weight tester) serves as a primary standard for pressure measurement. Since it uses known weights subjected to a known area to verify fluid pressure, it is widely utilized for the precise calibration of other pressure measuring gauges.