A Project Is Represented by the Activity Durations (Estimated at 90

question 25

Multiple Choice

A project is represented by the activity durations (estimated at 90% likelihood of completion) and precedence requirements shown in the table.What is the length of the project buffer if this project is managed using critical chain methodology? $$\begin{array} { | l | l | l | l | l | l | } \hline \text { Activity } & \text { Predecessor } & \text { Length } & \text { Activity } & \text { Predecessor } & \text { Length } \\\hline \text { A } & - & 20 & \text { D } & \text { B } & 16 \\\hline \text { B } & \text { A } & 20 & E & \text { C } & 8 \\\hline\end{array}$$

• A) 4.5
• B) 11.5
• C) 20.5
• D) 16

---

Definitions:

ATP

Adenosine triphosphate, a molecule that carries energy within cells, crucial for nearly all biological processes.

First Law of Thermodynamics

A principle stating that energy cannot be created or destroyed, only transformed from one form to another.

Second Law of Thermodynamics

A fundamental principle of physics stating that the total entropy of an isolated system can never decrease over time, and is constant if and only if all processes are reversible.

Entropy

A measure of disorder or randomness in a system, often associated with the second law of thermodynamics, stating that entropy within a closed system tends to increase over time.