# Aib Problems and Solutions

Essay by   •  September 9, 2012  •  Study Guide  •  443 Words (2 Pages)  •  4,378 Views

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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.

Step 2: Answer the following questions:

a) What is the Scheduled Completion of the Project?

b) What is the Critical Path of the Project?

Answer = B, D, F, G, I

c) What is the ES for Activity D?

d) What is the LS for Activity G?

e) What is the EF for Activity B?

f) What is the LF for Activity H?

g) What is the float for Activity I?

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:

a) Calculate the scheduled completion time.

b) Identify the critical path

Answer = B, C, D, F, H

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

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

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