Let T_i = Normal Completion Time for Task IR_i = $\Sigma$

question 34

Multiple Choice

Let T_i = normal completion time for task iR_i = crash completion time for task i C_i = normal cost for task i
H_i = crash cost for task i
X_i = start time for task i
Y_i = amount of time by which task i is to be crashed.
What is the objective function of a linear programming model for project crashing?

• A)\(\Sigma\)_{all i} Y_i(H_i - C_i)/(T_i - R_i)
• B)\(\Sigma\)_{all i on critical path} Y_i(H_i - C_i)/(T_i - R_i)
• C)\(\Sigma\)_{all i} X_iY_i
• D)\(\Sigma\)_{all i} Y_iH_i

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Definitions:

Heart and Lung

Vital organs in the human body where the heart pumps blood through the blood vessels and the lungs facilitate the exchange of oxygen and carbon dioxide.

Physical and Emotional Exhaustion

A state of being extremely tired both in body and mind, often as a result of prolonged stress or overwork.

Work-related Stress

Tension or anxiety resulting from job demands, workplace environment, or work-life balance challenges, affecting mental and physical health.

Self-efficacy

A person's belief in their ability to succeed in specific situations or accomplish a task, which can play a significant role in how one approaches goals, tasks, and challenges.