Which of the following controllers has maximum offset ?
Correct answer: A. P-controller
- A. P-controller
- B. P-I controller
- C. P-D controller
- D. P-I-D controller
Explanation
A proportional controller alone leaves a steady-state error, called offset, and its offset is not removed by derivative action. Integral action in PI and PID controllers eliminates offset, making the P controller the intended answer.
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
Working principle of radiation pyrometer is based on the __________________?
Presence of a small amount of water in the organic systems can be determined by the _____________ method?
The second order system with the transfer function 4/(s2 + 2s + 4) has a damping ratio of ___________________?
Which is the most suitable instrument for measuring pressure below 3 microns ?
______________ is undesirable in thermocouples used in industries ?
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit ?