ITPEC FE Morning April 2021 Question 20
ITPEC FE Morning April 2021 — Question 20 of 80
Sequence Control — executes control phases step-by-step in a predefined order.
Sequence control moves through stages one after another based on a fixed order or set of conditions — like an assembly line where each step triggers the next.
Why not others:
- (a) Fuzzy control — uses vague values like "slightly more" or "slightly less"
- (b) Feedback control — continuously monitors output and adjusts control in response to disturbances
- (d) Feedforward control — anticipates disturbances and takes corrective action in advance
Key rule: Sequence = fixed step-by-step order. Feedback = reacts to output. Feedforward = reacts to expected input disturbances.
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