A. Ward Leonard control
B. Field controlled D.C. motor
C. Stroboscope
D. Metadyne
_______________is an open loop control system? Read More »
Control Systems 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
The band width, in a feedback amplifier_______________? Read More »
Control Systems A. Vernistats
B. Microsyns
C. Resolvers
D. Any of the above
Which of the following devices are commonly used as error detectors in instruments ? Read More »
Control Systems A. Brain
B. Hands
C. Legs
D. Eyes
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
Which of the following should be done to make an unstable system stable ? Read More »
Control Systems A. Auto-pilot for an aircraft
B. Direct current generator
C. Car starter
D. Electric switch
_______________is a closed loop system? Read More »
Control Systems A. Servomechanism
B. Feedback
C. Output pattern
D. Input pattern
A closed loop system is distinguished from open loop system by which of the following ? Read More »
Control Systems A. open
B. closed
C. partially closed
D. any of the above
An automatic toaster is a ___________ loop control system? Read More »
Control Systems 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
For open control system which of the following statements is incorrect ? Read More »
Control Systems A. decrease
B. increase
C. be unaffected
D. any of the above
