_______________is an open loop control system?
A. Ward Leonard control
B. Field controlled D.C. motor
C. Stroboscope
D. Metadyne
Control Systems
The band width, in a feedback amplifier_______________?
The band width, in a feedback amplifier_______________?
A. remains unaffected
B. decreases by the same amount as the gain increase
C. increases by the sane saaaajajt as the gain decrease
D. decreases by the same amount as the gain decrease
Which of the following devices are commonly used as error detectors in instruments ?
Which of the following devices are commonly used as error detectors in instruments ?
A. Vernistats
B. Microsyns
C. Resolvers
D. Any of the above
By which of the following the control action is determined when a man walks along a path ?
By which of the following the control action is determined when a man walks along a path ?
A. Brain
B. Hands
C. Legs
D. Eyes
Which of the following should be done to make an unstable system stable ?
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
_______________is a closed loop system?
_______________is a closed loop system?
A. Auto-pilot for an aircraft
B. Direct current generator
C. Car starter
D. Electric switch
A closed loop system is distinguished from open loop system by which of the following ?
A closed loop system is distinguished from open loop system by which of the following ?
A. Servomechanism
B. Feedback
C. Output pattern
D. Input pattern
An automatic toaster is a ___________ loop control system?
An automatic toaster is a ___________ loop control system?
A. open
B. closed
C. partially closed
D. any of the above
For open control system which of the following statements is incorrect ?
For open control system which of the following statements is incorrect ?
A. Less expensive
B. Recalibration is not required for maintaining the required quality of the output
C. Construction is simple and maintenance easy
D. Errors are caused by disturbances
In closed loop control system, with positive value of feedback gain the overall gain of the system will______________?
In closed loop control system, with positive value of feedback gain the overall gain of the system will______________?
A. decrease
B. increase
C. be unaffected
D. any of the above