Question: The following scenario pertains to Questions 1-5.
A project consists of the following 5 elements. Assume that the CapEx (capital expenditure) takes place at the beginning of each element, that there are 40 working hours in a week, and that labor is charged at $100/hr. The precedents are given in the second column.
Element Dependencies CapEx Duration Total hrs
A Can start immediately $5,000 4 weeks 160
B Can start immediately $10,000 4 weeks 160
C B needs to be complete $8,000 2 weeks 80
D A and C need to be complete $12,000 1 week 40
E C needs to be complete $9,000 2 weeks 80
Question 1:
Using PlanBee scheduling software set up a project (AoN) for the project shown above,
then display a PERT chart for the project. Simply capture the screen with something like Snagit and paste the JPG in here. I am suggesting PlanBee, because it is easy to learn. If you already have MS Project on your computer, you may use that instead.
Question 2:
Create the Gantt chart for the project and paste it in here.
Question 3:
Give a cost estimate for the project, without contingencies.
Question 4:
Using the software Projrisk supplied, calculate the additional contingency for this project so that you will have a 90% confidence of having sufficient funds. Please ensure YOU provide the answer from the software. The examiner will NOT interpret any software pastings you include. However - please paste a copy of the data you have entered and also any relevant backups to support your answer. Also paste a copy of your S-curve in here.
Assume the following, based on past experience:
Expected variation on all materials -5%, +10% triangular distribution
Expected variation on labor -5%, +5% [10]
Question 5:
At the end of the third week you are compiling a progress report.
Task A is proceeding as per plan. However, B is a problem. You have only completed 50% of the work, and you have already booked 140 hours on the job. All CapEx has already been done.
Calculate the following (IF THERE ARE ERRORS - I CAN TRY AND GIVE MARKS BUT ONLY IF FORMULAE ARE SUPPLIED AS WELL):
BAC
BCWS
BCWP
ACWP
SPI
CPI
CV
SV
ETC
EAC