Non-metallic diaphragm used as pressure sensor in instruments is generally made of__________________?
Correct answer: D. Synthetic rubber
- A. Teflon
- B. Thick paper
- C. Bakelite
- D. Synthetic rubber
Explanation
Synthetic rubber is flexible and can deflect under pressure, making it suitable for non-metallic diaphragms. Teflon and Bakelite are harder materials and are used where chemical resistance or rigidity is more important than flexibility.
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