It is required to control the volume of the contents in the jacketed reactor shown in the figure.
Which one of the following schemes can be used for feedback control?
- Measure $L101$ and manipulate valve $V-2$
- Measure $T101$ and manipulate valve $V-1$
- Measure $L101$ and manipulate valve $V-3$
- Measure $F101$ and manipulate valve $V-1$
