Control Systems Polar Plot Online Exam Quiz
Control Systems Polar Plot GK Quiz. Question and Answers related to Control Systems Polar Plot. MCQ (Multiple Choice Questions with answers about Control Systems Polar Plot
The corner frequencies are
Options
A : 0 and 1
B : 0 and 2
C : 0 and 1
D : 1 and 2
The unit circle of the Nyquist plot transforms into 0dB line of the amplitude plot of the Bode diagram at
Options
A : 0 frequency
B : Low frequency
C : High frequency
D : Any frequency
The polar plot of the open loop transfer function of a feedback control system intersects the real axis at -2. The gain margin of the system is
Options
A : -5dB
B : 0dB
C : -6dB
D : 40dB
If the gain of the open-loop system is doubled, the gain margin
Options
A : Is not affected
B : Gets doubled
C : Becomes half
D : Becomes one-fourth
The constant M circle for M=1 is the
Options
A : straight line x=-1/2
B : critical point (-1j0)
C : circle with r= 0.33
D : circle with r=0.67
The polar plot of a transfer function passes through the critical point (-1,0). Gain margin is
Options
A : Zero
B : -1dB
C : 1dB
D : Infinity
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