Higher Applications Planning Revision

Question 1

In an activity network, what does a dependency show?

activities and dependencies

One activity must happen before anotherThe chart must be a bar chartThe activity has no durationThe project has no risk

Question 2

In a PERT activity network, A and B start at time 0 and take 2 and 5 days. C takes 3 days and starts only after both finish. Find the earliest project completion time.

PERT networks

Your answer

Question 3

Find float if earliest start is 6 and latest start is 9.

float

Your answer

Question 4

What is true about a critical activity?

critical path

It is always the cheapest taskIt has no durationIt can be delayed freelyIt has zero float

Question 5

Expected value is best described as:

expected value

A long-run average using probabilitiesThe same as floatA guaranteed outcomeThe largest possible value

Question 6

Tasks A (2 days) and B (5 days) have no predecessors, but both require the same specialist full-time and cannot be split. One specialist is available throughout. What is the earliest completion time for both tasks, and why?

interpreting decisions

5 days: no predecessors means they can overlap7 days: the specialist must carry out the tasks sequentially7 days: B is a stated predecessor of A2 days: complete only the shorter task

Question 7

Which chart is best for showing activities across a timeline?

Gantt charts

Gantt chartPie chartVenn diagramBox plot

Question 8

Which activity is critical?

critical path

An activity with the biggest cost onlyAn activity with zero floatAn activity with no dependencies onlyAn optional activity

Question 9

Find expected value for 0.25 chance of 200 and 0.75 chance of 40.

expected value

Your answer

Question 10

What should be considered in a risk decision besides expected cost?

risk

Likelihood and impactOnly alphabetical orderNothing elseOnly the shortest label

Question 11

During a forward pass, if two predecessor activities finish at 6 and 9, what earliest start should be used?

critical path

69153

Question 12

A network gives a 12-day project duration using estimated activity durations. Why might actual completion be later?

PERT networks

Slack guarantees every activity finishes on timeArrows always represent extra uncounted daysA critical activity may take longer than its estimated durationEvery non-critical activity delays the project

Planning and Decision Making mixed revision quiz

Check your understanding

In an activity network, what does a dependency show?

In a PERT activity network, A and B start at time 0 and take 2 and 5 days. C takes 3 days and starts only after both finish. Find the earliest project completion time.

Find float if earliest start is 6 and latest start is 9.

What is true about a critical activity?

Expected value is best described as:

Tasks A (2 days) and B (5 days) have no predecessors, but both require the same specialist full-time and cannot be split. One specialist is available throughout. What is the earliest completion time for both tasks, and why?

Which chart is best for showing activities across a timeline?

Which activity is critical?

Find expected value for 0.25 chance of 200 and 0.75 chance of 40.

What should be considered in a risk decision besides expected cost?

During a forward pass, if two predecessor activities finish at 6 and 9, what earliest start should be used?

A network gives a 12-day project duration using estimated activity durations. Why might actual completion be later?