A sinusoidal variation in the input passing through a linear first order system _________________?
Correct answer: D. Gets attenuated (magnitude decreases)
- A. Becomes more oscillatory (frequency increases)
- B. Becomes less oscillatory (frequency decreases)
- C. Gets amplified (magnitude increases)
- D. Gets attenuated (magnitude decreases)
Explanation
A linear first-order system preserves the input frequency but its transfer-function magnitude is less than one in the attenuating frequency range, so the sinusoidal output has reduced amplitude. It also experiences phase lag, but its frequency does not increase or decrease.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Process Control and Instrumentation
254 free Process Control and Instrumentation MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Process Control and Instrumentation questions
The inverse Laplace transform of the function f(S) = 1/S (1 + S) is_________________?
Composition of alloys can be determined by _________________?
Measurement of pressure in ammonia reactor is done by __________________?
A barometer measures the _____________ pressure?
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in_______________?
Which of the following does not figure in the list of seven substances selected for international temperature scale ?