List of top Instrumentation Engineering Questions on Nyquist Criterion asked in AP PGECET

If the phase margin of a system is zero degrees, then the system is

If the open loop transfer function of a system is $G(s)H(s) = \frac{K(s+1)}{s(s+3)(s+4)}$ then its centroid is:

A Bode plot of a transfer function G(s) is shown in the figure. The gain 'A' in dB at frequency f = 100Hz is:

If the negative feedback system is marginally stable, then the location of closed loop poles will be

The gain margin of a system can be determined from the gain at

Phase margin of a system is used to specify which of the following?

For Nyquist contour, the size of radius is ____ .