If Nyquist plot has a encirclement of (-1 + jo) point, the system is stable if

Electronics and Communication Engineering (ECE) : Automatic Control Systems - Quiz(MCQ)

there is no zeros of G(s) H(s) in right-half plane

there are no poles of G(s) H(s) in right-half plane

there is one pole of G(s) H(s) in right-half plane

None of the above

Correct Answer : Option (B) : there are no poles of G(s) H(s) in right-half plane

Recently Updated in Automatic Control Systems Questions

For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)

is +90Â°

is -90Â°

depends on the damping factor

None of the above

Correct Answer : is -90Â°

The response to sinusoidal excitation can be found by

setting s = jÏ‰ in the network function

setting s = -jÏ‰ in the network function

taking inverse transform of network function

None of the above

Correct Answer : setting s = jÏ‰ in the network function

The resolution of a wire wound potentiometer is about

0.1%

0.001%

Correct Answer : 0.1%