I. The attached figure shows a stirred tank $(100f{t}^3)$ which contains a mixer $($perfect

mixing$),$ and heating steam coil:

a$-$ Draw feedback control system for level control $($full details loop with pneumatic

transmission line$)$

b$-$ Draw a cascade control system for temperature control $($full details loop with pneumatic

transmission line$)$

Input flow

$(50f\frac{t^3}{h}r)$

Heating Steam