1.
PERT and CPM
1. Network diagram
1. Activity, Predecessors
2. Activity i-j
3. Activity i-j, Name of Activity
2. Critical path, Total float, Free float, Independent float
1. Activity, Predecessors, Duration
2. Activity i-j, Duration
3. Activity i-j, Name of Activity, Duration
3. Project scheduling with uncertain activity times (Optimistic, Most likely, Pessimistic)
1. Activity, Predecessors, to, tm, tp
2. Activity i-j, to, tm, tp
3. Activity i-j, Name of Activity, to, tm, tp
4. Project crashing to solve Time-Cost Trade-Off with fixed Indirect cost
1. Activity, Predecessors, Normal Time & Cost, Crash Time & Cost and Indirect Cost
2. Activity i-j, Normal Time & Cost, Crash Time & Cost and Indirect Cost
3. Activity i-j, Name of Activity, Normal Time & Cost, Crash Time & Cost and Indirect Cost
5. Project crashing to solve Time-Cost Trade-Off with varying Indirect cost
1. Activity, Predecessors, Normal Time & Cost, Crash Time & Cost and varying Indirect Cost
2. Activity i-j, Normal Time & Cost, Crash Time & Cost and varying Indirect Cost
3. Activity i-j, Name of Activity, Normal Time & Cost, Crash Time & Cost and varying Indirect Cost
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1. An assembly is to be made from two parts X and Y. Both parts must be turned on a lathe
Y must be polished where as X need not be polished. The sequence of acitivities, together with their
predecessors, is given below
| Activity |
Description |
Predecessor Activity |
| A |
Open work order |
- |
|
B |
Get material for X |
A |
|
C |
Get material for Y |
A |
|
D |
Turn X on lathe |
B |
|
E |
Turn Y on lathe |
B,C |
|
F |
Polish Y |
E |
|
G |
Assemble X and Y |
D,F |
|
H |
Pack |
G |
Draw a network diagram of activities for the project.
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2. An established company has decided to add a new product to its line. It will buy the
product from a manufacturing concern, package it, and sell it to a number of distributors that have been
selected on a geographical basis. Market research has already indicated the volume expected and the size
of sales force required. The steps shown in the following table are to be planned.
| Activity |
Description |
Predecessor Activity |
Duration (days) |
| A |
Organize sales office |
- |
6 |
|
B |
Hire salesman |
A |
4 |
|
C |
Train salesman |
B |
7 |
|
D |
Select advertising agency |
A |
2 |
|
E |
Plan advertising campaign |
D |
4 |
|
F |
Conduct advertising campaign |
E |
10 |
|
G |
Design package |
- |
2 |
|
H |
Setup packaging campaign |
G |
10 |
|
I |
Package initial stocks |
J,H |
6 |
|
J |
Order stock from manufacturer |
- |
13 |
|
K |
Select distributors |
A |
9 |
|
L |
Sell to distributors |
C,K |
3 |
|
M |
Ship stocks to distributors |
I,L |
5 |
(a) Draw an arrow diagram for the project.
(b) Indicate the criticla path.
(c) For each non-critical activity, find the total and free float.
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