Lesson 7.05a
7.05a Critical path analysis Quiz: OCR Further Maths, Unit 4
20 questions
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Lesson 7.05a, Critical path analysis: 20 multiple choice questions for the OCR Further Maths (H245), Unit 4: Discrete Mathematics (Y544), written with Revision Ninja.
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The 20 questions
-
In an activity-on-arc network, what do the nodes represent?
- Activities
- Time durations
- Events
- Float values
-
What is a critical path in a directed activity network?
- Longest path
- Float path
- Dummy path
- Shortest path
-
What term describes a node where two or more activities meet?
- Burst event
- Dummy node
- Critical node
- Merge event
-
What term describes a node where multiple activities begin?
- Burst event
- Float event
- Terminal node
- Merge event
-
What pass through an activity network calculates the earliest start times?
- Float pass
- Backward pass
- Critical pass
- Forward pass
-
Which process through an activity network determines the latest finish times?
- Parallel pass
- Cascade pass
- Backward pass
- Forward pass
-
What is the formula for the total float of an activity?
- LFT - EST - duration
- LFT - EST + duration
- EST - LFT - duration
- EST + duration - LFT
-
What does a total float of zero indicate for an activity?
- It is dummy
- It is independent
- It is critical
- It is delayed
-
If the critical path duration of a network is 18 days, what is the minimum completion time?
- 36 days
- 0 days
- 9 days
- 18 days
-
An activity has a latest finish time of 12 and duration 4. What is its LST?
- 8
- 3
- 48
- 16
-
An activity has an earliest start time of 5 and duration 3. What is its EFT?
- 1
- 8
- 2
- 15
-
An activity has EST = 4, LFT = 15, and duration = 6. What is its total float?
- 11
- 9
- 25
- 5
-
How is the float of non-critical activities typically represented on a cascade chart?
- Red circles
- Dashed lines
- Solid blocks
- Shaded squares
-
Two sequential activities A (duration 4) and B (duration 7) form a path. What is total length?
- 11
- 28
- 3
- 7
-
If a critical activity is delayed by 2 days, how much is the project delayed?
- 2 days
- 4 days
- 1 day
- 0 days
-
An activity has total float 4. If delayed by 3 days, what is the project delay?
- 3 days
- 0 days
- 1 day
- 7 days
-
Which float measure assumes predecessor activities finish late and successor activities start early?
- Independent float
- Interfering float
- Free float
- Total float
-
What is the difference between total float and free float called?
- Interfering float
- Critical float
- Independent float
- Dummy float
-
Why are dummy activities primarily used in an activity-on-arc network?
- To preserve precedence
- To increase duration
- To show float
- To calculate LFT
-
On a cascade chart, what can a vertical line across rows help determine at a time?
- Resource requirements
- Earliest start time
- Critical path duration
- Dummy duration
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