The characteristic equation for the control system with a closed loop transfer function G1/1 + G2 is given by 1 + G2 = 0. The characteristic equation for the control system_________________?
Correct answer: C. All A , B & C.
- A. Depends only upon the open loop transfer function
- B. Determines its stability
- C. All A , B & C.
- D. Is the same for set point or load changes
Explanation
The characteristic equation comes from the denominator of the closed-loop transfer function, and its roots determine stability. For a fixed feedback system it is independent of whether the input is a set-point change or a load disturbance, so all three statements apply.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
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
A mercury barometer measures the _____________ pressure?
The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches ___________________?
Strain gage pressure transducers are used to measure _____________ pressures?
Response of a system to a sinusoidal input is called _____________ response?
Use of I-control along with P-control facilitates ?
For a feed back control system to be stable, the _________________?