Numerade

$$ \begin{aligned} &\text {Develop sketches of reactor vent systems for the following four cases: }\\ &\begin{array}{lcccc} & \begin{array}{c} \text { Case } \\ \text { a } \end{array} & \begin{array}{c} \text { Case } \\ \text { b } \end{array} & \begin{array}{c} \text { Case } \\ \text { c } \end{array} & \begin{array}{c} \text { Case } \\ \text { d } \end{array} \\ \hline \text { Reactor relief is vapor only } & \mathrm{x} & & & \mathrm{x} \\ \text { Reactor relief is two-phase flow } & & \mathrm{x} & \mathrm{x} & \\ \begin{array}{l} \text { Reactor contents are corrosive } \\ \text { Reactor contents are plugging type } \end{array} & & \mathrm{x} & & \mathrm{x} \\ \begin{array}{l} \text { Relieved vapors are toxic } \end{array} & \mathrm{x} & & & \\ \begin{array}{l} \text { Relieved vapors are high boilers } \\ \text { Vapors are low boilers } \end{array} & \mathrm{x} & \mathrm{x} & & \mathrm{x} \\ \hline \end{array} \end{aligned} $$

shenchi f.