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Problem 1

The following data were
obtained from a project to create a new portable electronic.

Activity Duration Predecessors
A 5 Days —
B 6 Days —
C 8 Days —
D 4 Days A,
B
E 3 Days C
F 5 Days D
G 5 Days E,
F
H 9 Days D
I 12 Days G

Step 1: Construct a network diagram for the project. (NOTE: EF for activity H should be 19)

Step 2: Answer the following questions: (15 points total)

a) What
is the Scheduled Completion of the Project? (5 points)

b) What
is the Critical Path of the Project? (5 points)

c) What
is the ES for Activity D? (1 points)

d) What
is the LS for Activity G? (1 points)

e) What
is the EF for Activity B? (1 points)
f) What
is the LF for Activity H? (1 points)

g) What
is the float for Activity I? (1 points)

Problem 2

The following data were obtained from a project to build a
pressure vessel:

Activity Duration Predecessors
A 6
weeks —
B 6
weeks —
C 5
weeks B
D 4
weeks A, C
E 5
weeks B
F 7
weeks D, E, G
G 4
weeks B
H 8
weeks F
I 5
weeks G
J 3
week I

Step 1: Construct a network diagram for the project.

Step 2: Answer the following questions: (15 points total)

a) Calculate
the scheduled completion time. (5 points)

b) Identify
the critical path (6 points)
c) What
is the slack time (float) for activity A? (1 points)

d) What
is the slack time (float) for activity D? (1 points)

e) What is the slack time (float)
for activity E? (1 points)

f) What is the slack time (float)
for activity G? (1 points)

Problem 3

The following data were obtained from a project to design a
new software package:

Activity Duration Predecessors
A 5
Days —
B 8
Days —
C 6
Days A
D 4
Days C, B
E 5
Days A
F 4
Days D, E, G
G 4
Days B, C
H 3
Day G

Step 1: Construct a network diagram for the project.

Step 2: Answer the following questions: (15 points total)

a) Calculate
the scheduled completion time. (5 points)

b) Identify
the critical path(s) (6 points)

c) What
is the slack time (float) for activity B? (1 points)

d) What
is the slack time (float) for activity D? (1 points)

e) What is the slack time (float)
for activity E? (1 points)

f)
What is the slack time (float) for activity G? (1
points)

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