Question 1

A project consists of the following seven activities and immediate predecessors:$$\begin{array} { c c } 
\text { Artivity } & \text { Predecegsor } \
\text { A } & \text { None } \
\text { B } & \text { A } \
\text { C } &  \text { A } \ 
\text { D } & \text { B } \
\text { E } & \text { B, C }\
\text { F } & \text { D, E }\
\text { G } & \text { F }
\end{array}$$ Construct an AON network diagram for the project.

Accepted Answer

The answer of A project consists of the following seven...

Question 2

In the PERT probabilistic approach, statisticians have found which distribution most helpful in describing possible activity times?

Accepted Answer

A) Beta 
B) Gamma 
C) normal 
D) uniform

Question 3

Consider the following activity schedule chart for a maintenance project.$\begin{array}{ccccr}
\text { Activity } & \text { ES } & \text { EF } & \text { IS } & \text { LF } \
\text { A } & 0 & 6 & 1 & 7 \
\text { B } & 0 & 5 & 0 & 5 \
\text { C } & 6 & 14 & 7 & 15 \
\text { D } & 6 & 10 & 14 & 18 \
\text { E } & 14 & 16 & 15 & 17 \
\text { F } & 5 & 14 & 5 & 14 \
\text { G } & 14 & 17 & 14 & 17 \
\text { H } & 14 & 19 & 16 & 21 \
\text { I } & 10 & 13 & 18 & 21 \
\text { J } & 17 & 21 & 17 & 21
\end{array}$ A.What are the slack values?
B.Identify the activities on the critical path.
C.If the time is in weeks, what is the impact of a two week delay in activity D, H, or C?

Accepted Answer

The answer of Consider the following activity schedule chart for...

Question 4

Any attempt at resource leveling always will involve lengthening the project completion time beyond its "non-leveled" minimum.

Accepted Answer

A) True 
 B)False

Question 5

If a critical task is delayed, we either must add resources, miss the project deadline, or sacrifice quality.

Accepted Answer

A) True 
 B)False

Question 6

In project scheduling, activities:

Accepted Answer

A) must be completed sequentially. 
B) are the tasks of a project. 
C) are work packages. 
D) are not represented on Gantt charts.

Question 7

Why must we solve two linear programming models to model a PERT/CPM network?

Accepted Answer

The answer of Why must we solve two linear programming...

Question 8

Explain the Excel functions
NORMINV(0.98,200,10)
NORMDIST(190,200,10,TRUE).

Accepted Answer

The answer of Explain the Excel functions
NORMINV(0.98,200,10)
NORMDIST(190,200,10,TRUE)....

Question 9

Let B = budgeted total cost for a work package T = estimated completion time for a work package
P = percent complete
A = actual expenses to date
M = time used to date
What is the definition of cost overrun, C?

Accepted Answer

A) C = A - PB 
B) C = A - (1 - P)TB 
C) C = A - PTB 
D) C = A - MB/T

Question 10

The earliest start (ES) time for an activity is the latest earliest finish (EF) time of all its immediate predecessors.

Accepted Answer

A) True 
 B)False

Question 11

GANTT stands for "Generalized Activity Normalization Time Table."

Accepted Answer

A) True 
 B)False

Question 12

Since PERT allows randomness, it is not necessary to know the precise activity precedence relations to use PERT.

Accepted Answer

A) True 
 B)False

Question 13

For the data in problem 6,
A.Write a linear programming model that will give the minimum cost solution for completing the project in 14 weeks.
B.How would your model change if the objective were to complete the project in minimum time given a budget of $15,000?

Accepted Answer

The answer of For the data in problem 6,
A.Write a...

Question 14

In a PERT network, you are given the following data with times in weeks.$\begin{array}{ccccc}
\text { Activity } & \text { Immediate } & \text { Optimistic } & \text { Most Likely } & \text { Pessimistic } \
& \text { Predecessors } & \text { Time } & \text { Time } & \text { Time }\
\text { A } & -- & \text { G } & 11 & 13 \
\text { B } & -- & 4 & 9 & 20 \
\text { C } & \text { A } & 2 & 11 & 14 \
\text { D } & \text { A, B } & 5 & 6 & 13 \
\text { E } & \text { D } & 3 & 6 & 11 \
\text { F } & \text { C, D } & 9 & 10 & 11 \
\text { G } & \text { E }, \text { F } & 7 & 20 & 21
\end{array}$
 A.What is the critical path?
B.What is the probability the project will be completed within one year (52 weeks)?

C.Which activity has the most slack?

Accepted Answer

The answer of In a PERT network, you are given...

Question 15

Given the following data for work packages in a PERT/Cost network at week 18:
$\begin{array}{cccccc}
\text { Activity } & \begin{array}{c}
\text { Immediate } \
\text { Predecessors }
\end{array} & \begin{array}{c}
\text { Budgeted } \
\text { Time } \
\text { (weeks) }
\end{array} & \begin{array}{c}
\text { Budgeted } \
\text { Value }
\end{array} & \begin{array}{c}
\text { Percent } \
\text { Complete }
\end{array} & \begin{array}{c}
\text { Expense To } \
\text { Date }
\end{array} \
\text { A } & -- & 12 & \$ 50,000 & 1008 & \$ 48,000 \
\text { B } & -- & 8 & \$ 20,000 & 1008 & \$ 21,000 \
\text { C } & \text { A } & 6 & \$ 60,000 & 758 & \$ 40,000 \
\text { D } & \text { B } & 16 & \$ 40,000 & 508 & \$ 25,000 \
\text { E } & \text { C, D } & 16 & \$ 45,000 & 08 & 0 \
\text { F } & \text { B } & 28 & \$ 80,000 & 758 & \$ 55,000
\end{array}$
 A.Is the project currently experiencing a cost overrun?
B.Is the project on target to be completed within 40 weeks?
C.What corrective action, if any, could you recommend?

Accepted Answer

The answer of Given the following data for work packages...

Exam 5: Project Scheduling Models

In the PERT probabilistic approach, statisticians have found which distribution most helpful in describing possible activity times?

Any attempt at resource leveling always will involve lengthening the project completion time beyond its "non-leveled" minimum.

If a critical task is delayed, we either must add resources, miss the project deadline, or sacrifice quality.

In project scheduling, activities:

Why must we solve two linear programming models to model a PERT/CPM network?

Explain the Excel functions NORMINV(0.98,200,10) NORMDIST(190,200,10,TRUE).

Let B = budgeted total cost for a work package T = estimated completion time for a work package P = percent complete A = actual expenses to date M = time used to date What is the definition of cost overrun, C?

The earliest start (ES) time for an activity is the latest earliest finish (EF) time of all its immediate predecessors.

GANTT stands for "Generalized Activity Normalization Time Table."

Since PERT allows randomness, it is not necessary to know the precise activity precedence relations to use PERT.

For the data in problem 6, A.Write a linear programming model that will give the minimum cost solution for completing the project in 14 weeks. B.How would your model change if the objective were to complete the project in minimum time given a budget of $15,000?