Which instrument is inappropriate for accurately measuring the temperature of a red-hot object within the 800 to 1600°C range?

Process Control and Instrumentation MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Process Control and Instrumentationchemical-engineering › process-control-and-instrumentation
Published
5 Mar 2019
Last updated
28 May 2026

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Explanation

Optical, radiation, and photoelectric pyrometers are suitable for high-temperature measurements such as 800–1600°C. Thermocouples, however, are generally not ideal for measuring temperatures in this range due to limitations in accuracy and durability at very high temperatures.

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