A. Error detector
B. Final control element
C. Sensor
D. Oscillator
Related Mcqs:
- An automatic toaster is a ___________ loop control system?
A. open
B. closed
C. partially closed
D. any of the above - Which of the following is an open loop control system ?
A. Field controlled D.C. motor
B. Ward leonard control
C. Metadyne
D. Stroboscope - Which of the following should be done to make an unstable system stable ?
A. The gain of the system should be decreased
B. The gain of the system should be increased
C. The number of poles to the loop transfer function should be increased
D. The number of zeros to the loop transfer function should be increased - In a stable control system backlash can cause which of the following ?
A. Underdamping
B. Overdamping
C. Poor stability at reduced values of open loop gain
D. Low-level oscillations - ___________From which of the following transfer function can be obtained ?
A. Signal flow graph
B. Analogous table
C. Output-input ratio
D. Standard block system
F. None of the above - In order to increase the damping of a badly underdamped system which of following compensators may be used ?
A. Phase-lead
B. Phase-lag
C. Both A. and B.
D. Either A. and B.
F. None of the above - The transfer function technique is considered as inadequate under which of the following conditions ?
A. Systems having complexities and non-linearities
B. Systems having stability problems
C. Systems having multiple input disturbances
D. All of the above - Addition of zeros in transfer function causes which of the following ?
A. Lead-compensation
B. Lag-compensation
C. Lead-lag compensation
D. None of the above - Which of the following is the best method for determining the stability and transient response ?
A. Root locus
B. Bode plot
C. Nyquist plot
D. None of the above - Which of the following is the non-linearity caused by servomotor ?
A. Static friction
B. Backlash
C. Saturation
D. None of the above
