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 is from the Level III study guide, Domain 1, Calibration. Level III represents a professional who has a 13-year total of education, training, and/or experience.
In order to meet velocity and Reynolds number constraints for a particular Doppler flowmeter sizing application, the following will normally be considered:
a) reduce the size, which increases both the velocity and the Reynolds number
b) reduce the size, which increases the velocity and decreases the Reynolds number
c) fix the size for velocity constraints and neglect Reynolds number
d) try another technology for laminar flow since Reynolds number constraints can preclude the use of Doppler flowmeters
e) none of the above