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- Subject
- Process Control and Instrumentationchemical-engineering › process-control-and-instrumentation
- Published
- 7 Mar 2019
- Last updated
- 28 May 2026
Explanation
Option A is incorrect because the frequency response of a pure capacitive process is not unbounded. Option B is false since the phase lag in a pure time delay system actually increases with frequency. Option C is correct: the amplitude ratio of a pure capacitive process is inversely related to frequency, meaning it decreases as frequency rises. Option D is incorrect because the amplitude ratio in a pure time delay system does not increase with frequency.
More Process Control and Instrumentation MCQs
Practice related questions from the same subject.
- 1.Identify the device that qualifies as a first-order instrument.
- 2.Identify the first-order system from the options listed below.
- 3.Identify the incorrect statement from the following:
- 4.Identify the incorrect statement from the following:
- 5.If a radioactive substance has a half-life of 12 years, how many years will it take for the substance to decay to half of its initial mass?
- 6.What is the term for the frequency at which the amplitude ratio reaches its highest value?
- 7.For which temperature ranges is a thermocouple appropriate for measurement?
- 8.What is the Laplace transform of the integral from 0 to t of the function f(τ) = τ with respect to τ?
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