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. 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.
In the graphic, FY 902 is a(an) ______________ function.
a) analysis b) multiplication c) square root d) summing e) none of the above
FY 902 is a "circle" enclosed in a "square," which indicates it is an instrument with a shared display or a shared control. The "902" is the "loop number." The "F" indicates this is "flow" related, and the "Y" is saying there is some kind of conversion or computation going on. The way we know it is a "square root" conversion is from the "square root symbol (√)" on the top right hand corner of the box.
