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Instrumentation
Instrument and Control Technician Red Seal
Process Control Fundamentals
Knowledge Check
Process Control Fundamentals
Knowledge Check
Knowledge Check
1 / 8
When should a direct-acting controller be used instead of reverse-acting?
A
When an increase in process variable requires an increase in controller output (e.g., cooling valve that opens on rising temperature)
B
When the process variable needs to increase with increasing output
C
Only for flow control
D
For all temperature control applications
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