Critical Path Analysis

Question 1

The first node is called..

Answer 1

The source node.

Question 2

The last node is called..

Answer 2

The sink node.

Question 3

Early time events are calculated by..

Answer 3

A forward scan.

Question 4

Late time events are calculated by..

Answer 4

A backward scan.

Question 5

Total Float

Answer 5

The amount of time that an activity’s start may be delayed without affecting the duration of the project.

Question 6

critical activity

Answer 6

These will have equal numbers in their early event times and late event times.

Question 7

total float

Answer 7

total float = latest finish time - duration - earliest start time (bottom number after activity - the number on the arc - the top number before the arc starts)

Question 8

total float of a critical activity

Answer 8

This will always be zero

Question 9

how to plot gannt chart

Answer 9

plot first early event time as start of gannt box, then add path length to start of gannt box for clear bit of box. then plot last late event time. the distance between clear box and late event time is the shaded box