The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C?
Correct answer: B. 500
- A. 250
- B. 500
- C. 750
Explanation
Fibreglass insulation used around thermocouple wires is generally suitable up to about 500°C. Above this range, higher-temperature insulation such as ceramic or mineral insulation is normally selected.
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