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AutoQuiz: What P&ID Symbol Is Used to Indicate a Temperature Regulator?

The post AutoQuiz: What P&ID Symbol Is Used to Indicate a Temperature Regulator? 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 more information about the CCST program.

 

 

In the post image, which symbol from ISA-5.1-2009 – Instrumentation Symbols and Identification is used to indicate a temperature regulator?

<span class="collapseomatic " id="id2950" tabindex="0" title="Click Here to Reveal the Answer” >Click Here to Reveal the Answer

Answer B is incorrect because the symbol represents a back pressure regulator, external pressure tap.

Answer C is incorrect because the symbol represents a pressure reducing regulator, external pressure tap.

Answer D is incorrect because the symbol does not exist in ISA-5.1-2009.

The correct answer is A; this symbol reflects a temperature regulator, filled thermal system.

Reference: ANSI/ISA-5.1-2009 – Instrumentation Symbols and Identification

 


Source: ISA News