Pm586 Homework Week 3

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

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

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

15

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

6

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

32

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

0

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)

30

b) Identify the critical path (6 points)

B-C-D-F-H

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

5

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

0

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

4

f) What is the