Project Management, 2e (Pinto)
Chapter 9 Project Scheduling: Networks, Duration Estimation, and Critical Path
9.1 True/False
1) Preceding activities are those that must occur before others can be done.
Answer: TRUE
Diff: 1
Section: 9.1 Project Scheduling
Skill: Factual
AACSB Tag: Reflective
2) A backward pass is performed when it is necessary to undo some work that has been
performed in order to complete it properly.
Answer: FALSE
Diff: 1
Section: 9.2 Key Scheduling Terminology
Skill: Factual
AACSB Tag: Reflective
3) A merge activity has two or more immediate predecessors.
Answer: TRUE
Diff: 1
Section: 9.2 Key Scheduling Terminology
Skill: Definition
AACSB Tag: Reflective
4) Float is always measured in exactly the same way as slack.
Answer: TRUE
Diff: 2
Section: 9.2 Key Scheduling Terminology
Skill: Factual
AACSB Tag: Reflective
5) You must know the mean of an activity in order to determine its standard deviation.
Answer: FALSE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
1
Copyright © 2010 Pearson Education, Inc.
, 6) In assigning a value for the most pessimistic (b) duration, the project manager should estimate
the duration of the activity to have a 99% likelihood that it will take b or less amount of time.
Answer: TRUE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Definition
AACSB Tag: Reflective
7) The late start time should be calculated using a forward pass through the network.
Answer: FALSE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
8) Negative float exists when a project's critical path has been completed more quickly than
anticipated.
Answer: TRUE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
9) Laddering is a technique that allows the project manager to redraw the network to more
closely sequence project subtasks to make the overall network sequence more efficient.
Answer: TRUE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
10) Hammock activities break a task into greater levels of detail so that each task is represented
as two or more subtasks that each have their own duration and precedence requirements.
Answer: FALSE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
2
Copyright © 2010 Pearson Education, Inc.
Chapter 9 Project Scheduling: Networks, Duration Estimation, and Critical Path
9.1 True/False
1) Preceding activities are those that must occur before others can be done.
Answer: TRUE
Diff: 1
Section: 9.1 Project Scheduling
Skill: Factual
AACSB Tag: Reflective
2) A backward pass is performed when it is necessary to undo some work that has been
performed in order to complete it properly.
Answer: FALSE
Diff: 1
Section: 9.2 Key Scheduling Terminology
Skill: Factual
AACSB Tag: Reflective
3) A merge activity has two or more immediate predecessors.
Answer: TRUE
Diff: 1
Section: 9.2 Key Scheduling Terminology
Skill: Definition
AACSB Tag: Reflective
4) Float is always measured in exactly the same way as slack.
Answer: TRUE
Diff: 2
Section: 9.2 Key Scheduling Terminology
Skill: Factual
AACSB Tag: Reflective
5) You must know the mean of an activity in order to determine its standard deviation.
Answer: FALSE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
1
Copyright © 2010 Pearson Education, Inc.
, 6) In assigning a value for the most pessimistic (b) duration, the project manager should estimate
the duration of the activity to have a 99% likelihood that it will take b or less amount of time.
Answer: TRUE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Definition
AACSB Tag: Reflective
7) The late start time should be calculated using a forward pass through the network.
Answer: FALSE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
8) Negative float exists when a project's critical path has been completed more quickly than
anticipated.
Answer: TRUE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
9) Laddering is a technique that allows the project manager to redraw the network to more
closely sequence project subtasks to make the overall network sequence more efficient.
Answer: TRUE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
10) Hammock activities break a task into greater levels of detail so that each task is represented
as two or more subtasks that each have their own duration and precedence requirements.
Answer: FALSE
Diff: 2
Section: 9.4 Duration Estimation
Skill: Factual
AACSB Tag: Reflective
2
Copyright © 2010 Pearson Education, Inc.
