# Aib Problems -Project Manangement

ActivityDurationPredecessors

A3 Days---

B4 Days---

C6 Days---

D2 DaysA, B

E1 DaysC

F3 DaysD

G3 DaysE, F

H7 DaysD

I10 DaysG

a. For the above information, draw an AIB diagram.

[pic]

Slack or Float = LF – EF or LST – EST

Activities on the critical path have zero slack/float.

b. What is the Scheduled Completion of the Project? 22 Days c. What is the Critical Path of the Project? B-D-F-G-I

d. What is the EST for Activity D? Day 4

e. What is the LST for Activity G? Day 9

f. What is the EF for Activity B? Day 4

g. What is the LF for Activity H? Day 22

h. What is the float for Activity I? 0 Days

Problem 2

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

ActivityDurationPredecessors

A4 weeks---

B4 weeks---

C3 weeksB

D2 weeksA, C

E3 weeksB

F5 weeksD, E, G

G2 weeksB

H6 weeksF

I3 weeksG

J1 weekI

a.Construct a network for the project.

[pic]

Slack or Float = LF – EF or LST – EST

Activities on the critical path have zero slack/float.

b.Calculate the scheduled completion time and identify the critical path. Scheduled completion time = 20 weeks

Critical Path = B, C, D, F, H

c.What is the slack time (float) for activities A, D, E, and G? A=3 weeks

D=0 weeks

E=2 weeks

G=3 weeks

Problem 3

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

ActivityDurationPredecessors

A3 Days---

B6 Days---

C4 DaysA

D2 DaysC, B

E3 DaysA

F2 DaysD, E, G

G2 DaysB, C

H1 DayG

a.Construct a network for the project.

[pic]

Slack or Float = LF – EF or LST – EST

Activities on the critical path have zero slack/float.

b.Calculate the scheduled completion time and identify the critical path(s). Scheduled...

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