Control System Multiple Choice Questions and Answers
26. The phenomena of 'limit cycles' and 'jump resonance' are observed in
A. Discrete time systems
B. Linear systems
C. Non-linear systems
D. Distributed systems
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C. Non-linear systems
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27. Isocline method is used for which one of the following ?
A. Design of non-linear system
B. Construction of route loci of nonlinear system
C. Construction of phase trajectories of nonlinear systems
D. Stability analysis of nonlinear system
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28. The effect of tachometer feedback in a control system is to reduce
A. Only time constant
B. Only gain
C. Damping
D. Both gain and time constant
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29. Which one of the following can be used as a tachogenerator in control system ?
A. Microsyn
B. DC Servomotor
C. AC Servomotor
D. Magnetic amplifier
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30. Microsyn is based on the principle of
A. DC motor
B. Resolver
C. Saturable reactor
D. Rotating differential transformer
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