Chapter 39

Question 1

What is CPM

Answer 1

Critical path method was developed in 1950 by DuPont to solve scheduling problems

Question 2

How CPM estimates time

Answer 2

Using PERT

Question 3

Does critical path compose of critical activities

Answer 3

Yes

Question 4

Does the activities in CPM independent

Answer 4

Yes

Question 5

What are 2 things required to drive a critical path

Answer 5

Earliest finish (EF) time and latest finish (LF) time for each activity. Compare the EF and LF

Question 6

The points at start and end of activity called what

Answer 6

source node and sink node

Question 7

Is it possible that there could be more than one critical path

Answer 7

Yes and in that situation select the longest critical path

Question 8

Does shortening an activity that is not on certain critical path will short the length the whole project

Answer 8

No

Question 9

What is EF

Answer 9

Earliest finish time is minimum time required to finish the activity. To calculate EF move from left to right

Question 10

What is latest finish (LF) time

Answer 10

The latest finish time for an activity is the maximum time required to complete it without delaying the project. To calculate EF move from right to left

Question 11

What is the simplest chart for scheduling

Answer 11

Gantt chart

Question 12

What are disadvantages of gantt chart

Answer 12

• Tracking the project progress
• Representing uncertainties
• inter dependencies of activities

Question 13

Can we identify all possible activities and sub activities in large and complex project

Answer 13

No

Question 14

Which is used mostly PERT or CPM

Answer 14

CPM

Question 15

When pm does not have full control over the project, what should project manager do

Answer 15

• Leave the scheduling to the sub contractor or vendor

- Retain control over the sub contractor or vendor