Which of the following statements accurately describe closed-loop control? Closed-loop control: I. maintains consistent inspiratory pressure, volume, or flow waveforms in the presence of changing lung compliance and airway resistance. II. measures the output, and compares it with a reference value. a. III. lacks a stream of information from the output to generate a new input. IV. provides a
steady output in the presence of unanticipated disturbances.
A. I, IV only
B. I, II, III only
C. I, II, IV only
D. II, III, IV only
ANS: C
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