The high expansion metal normally used in the bimetallic thermometer is _______________ temperature measurement?
Correct answer: D. Both A. & B.
- A. Brass for low
- B. Nickel alloys for high
- C. Aluminium for all
- D. Both A. & B.
Explanation
Bimetallic thermometers use metals with different thermal expansion coefficients: brass-based combinations are used for lower temperatures, while nickel-alloy combinations suit higher temperatures. Thus both listed applications are included.
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