Analysis
The concepts associated with process control are important
for technicians that work with high tech processes. When equipment is replaced or repaired it has
to be "tuned" to respond to unexpected variations (disturbances) that
change the operating conditions. For
technicians this also means adjusting the control system to accommodate
replaced or repaired equipment. Although
the "tuning" process is usually a set of simple operations, the
skills involved in recognizing that the new settings are correct require a
STEM knowledge base. A primary principle is the expectation that
the equipment will return the process variable (temperature for example) to the
value it had before the disturbance occurred.
Fortunately, today's technicians will be able to see the results of
their efforts on a laptop or other small display. For this puzzle the only task was to select
which of the 3 possible setting options would accomplish that task. Clearly, the tech would not pick option
3. Next month's puzzle will explore this
situation further and the lessons that students can learn about evaluating this
data.
Question
The technician selected the setting that provided the
graphic
response shown as
graph number 3. YES or NO
Answer: NO
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