A. Underdamping
B. Overdamping
C. Poor stability at reduced values of open loop gain
D. Low-level oscillations
Correct Answer: Low-level oscillations ✔
Last Updated: December 23, 2018
Related MCQs
- A controller, essentially, is a__________?
- Which of the following statements is correct for any closed loop system ?
- The transient response, with feedback system__________?
- Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?
- The second derivative input signals modify which of the following ?
- increases the steady state accuracy?
- Regenerative feedback implies feedback with__________?
- On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?
- A control system with excessive noise, is likely to suffer from__________?
- A.C. servomotor resembles__________?
- The output of a feedback control system must be a function of__________?
- Transfer function of a system is used to calculate which of the following ?
- Zero initial condition for a system means__________?
- As a result of introduction of negative feedback which of the following will not decrease ?
- __________is an open loop control system?
- The band width, in a feedback amplifier__________?
- Which of the following devices are commonly used as error detectors in instruments ?
- By which of the following the control action is determined when a man walks along a path ?
- Which of the following should be done to make an unstable system stable ?
- __________is a closed loop system?
- A closed loop system is distinguished from open loop system by which of the following ?
- An automatic toaster is a __________ loop control system?
- For open control system which of the following statements is incorrect ?
- In closed loop control system, with positive value of feedback gain the overall gain of the system will__________?
- __________is a part of the human temperature control system?
- Any externally introduced signal affecting the controlled output is called a__________?
- A control system working under unknown random actions is called__________?
- A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
- In open loop system__________?
- A control system in which the control action is somehow dependent on the output is known as__________?
- Which of the following is an open loop control system ?
- In an open loop control system__________?
- Which of the following statements is not necessarily correct for open control system ?
- has tendency to oscillate__________?
- The initial response when tne output is not equal to input is called__________?
- A good control system has all the following features except__________?