Arizona Drivers License Practice Test

Integral and Derivative functions are used in control systems to:

Be combined with multi-position controllers Act as feed-forward and cascade functions Help maintain a process variable exactly on the set-point Primarily function in on-off control

Correct Answer:

Help maintain a process variable exactly on the set-point

Explanation:

Proportional, Integral, and Derivative (PID) functions work together to eliminate offset and maintain the process variable on the set-point.

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