In the tank-level control system shown, the tank cross-sectional area is $A$. The flow controllers are perfect. The level controller (LC) is PI. For an integral time $\tau_I$, the controller gain $K_c$ is tuned for critical damping. The value of $\dfrac{K_c\tau_I}{A}$ is \(\underline{\hspace{2cm}}\) (rounded off to nearest integer).
In the tank-level control system shown, the tank cross-sectional area is $A$. The flow controllers are perfect. The level controller (LC) is PI. For an integral time $\tau_I$, the controller gain $K_c$ is tuned for critical damping. The value of $\dfrac{K_c\tau_I}{A}$ is \(\underline{\hspace{2cm}}\) (rounded off to nearest integer).
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Correct Answer: 4
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