# New Portable Electronic Project

Topics: Critical path method, Network diagram, Project management Pages: 5 (605 words) Published: February 3, 2013
Problem 1

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

ActivityDurationPredecessors
A5 Days---
B6 Days---
C8 Days---
D4 DaysA, B
E3 DaysC
F5 DaysD
G5 DaysE, F
H9 DaysD
I12 DaysG

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:

ActivityDurationPredecessors
A6 weeks---
B6 weeks---
C5 weeksB
D4 weeksA, C
E5 weeksB
F7 weeksD, E, G
G4 weeksB
H8 weeksF
I5 weeksG
J3 weekI

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:

ActivityDurationPredecessors
A5 Days---
B8 Days---
C6 DaysA
D4 DaysC, B
E5 DaysA
F4 DaysD, E, G
G4 DaysB, C
H3 DayG

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)
19days

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

A, C, D, F

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

3days

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

0days

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

f) What is the slack time (float) for activity G? (1 points)
0days

Problem 4

The following data were obtained from an in-house MIS project:

ActivityDurationPredecessors
A5 Days---
B8 Days---
C5 DaysA
D4 DaysB
E5 DaysB
F3 DayC, D
G7 DaysC, D
H6 DaysE, F, G
I9 DaysE, F

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)

25days

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

c) What is the slack time (float) for activity A? (1 points) 2 days

d) What is the slack time (float) for activity D? (1 points) 0days

e) What is the slack time (float) for activity E? (1 points) 3days

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