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AutoQuiz: What is a Thermowell?

The post AutoQuiz: What is a Thermowell? first appeared on the ISA Interchange blog site.

AutoQuiz is edited by Joel Don, ISA’s community manager.

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Click this link for information about the CCST program. This question comes from the Level I study guide, Domain 3, Troubleshooting. Level I represents a professional who has a five-year total of education, training, and/or experience.

What is a thermowell?

a) protective tube
b) type of manometer
c) expandable bulb
d) reservoir
e) none of the above

   

<span class="collapseomatic " id="id976" tabindex="0" title="Click Here to Reveal the Answer” >Click Here to Reveal the Answer

A thermowell is a closed-end tube that surrounds the measuring junction of a thermocouple and protects it from physical damage, corrosion, or thermo chemical interaction with the medium whose temperature is the subject of measurement.

The correct answer is A.

Source: ISA News