New Portable Electronic Project

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

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

32 days

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

B, D, F, G, I

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

6 days

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

6 days

e) What is the EF for Activity B? (1 points)
6 days

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

32 days

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

0 days

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)
30days

b) Identify the critical path (6 points)
B, C, D, F, H

c) What is the slack time (float) for activity A? (1 points)
6 days

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

0 days

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

4 days

e) What is the slack time (float) for activity G? (1 points)
5 days
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