Project Mngt Chapter 9

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Project Mngt Chapter 9 Test Questions
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Frage 1

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Preceding activities are those that must occur before others can be done.
Antworten
  • T/F
  • Answer: TRUE

Frage 2

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A backward pass is performed when it is necessary to undo some work that has been performed in order to complete it properly.
Antworten
  • T/F
  • Answer: FALSE

Frage 3

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A merge activity has two or more immediate predecessors.
Antworten
  • T/F
  • Answer: TRUE

Frage 4

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Float is always measured in exactly the same way as slack.
Antworten
  • T/F
  • Answer: TRUE

Frage 5

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The PERT technique assumes that durations are more deterministic
Antworten
  • T/F
  • Answer: FALSE

Frage 6

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Burst activities are those with two or more successor activities.
Antworten
  • T/F
  • Answer: FALSE

Frage 7

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You must know the mean of an activity in order to determine its standard deviation.
Antworten
  • T/F
  • Answer: FALSE

Frage 8

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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.
Antworten
  • T/F
  • Answer: TRUE

Frage 9

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The late start time should be calculated using a forward pass through the network.
Antworten
  • T/F
  • Answer: FALSE

Frage 10

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Negative float exists when a project's critical path has been completed more quickly than anticipated.
Antworten
  • T/F
  • Answer: TRUE

Frage 11

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The term ordered activity means: A) tasks must either precede or follow other tasks in project planning and management. B) tasks cannot be performed unless the project manager issues a specific command to perform the work. C) prior project planning removes the need for any rush so that tasks can be performed in a methodical fashion. D) tasks are not performed unless the customer issues a specific request to perform the work.
Antworten
  • M/C
  • Answer: A

Frage 12

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A sequence of activities defined by the project network logic is a(n): A) event. B) path. C) node. D) route.
Antworten
  • M/C
  • Answer: B

Frage 13

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One of the defining points of a network, a junction point joined to some or all of the others by dependency lines, is called a(n): A) event. B) path. C) node. D) burst.
Antworten
  • M/C
  • Answer: C

Frage 14

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These can be located by doing a backward pass through a network. A) critical paths B) merge activities C) successors D) burst activities
Antworten
  • M/C
  • Answer: D

Frage 15

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An activity with two or more immediate predecessors is a(n): A) merge activity. B) burst activity. C) float activity. D) event.
Antworten
  • M/C
  • Answer: A

Frage 16

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The amount of time an activity may be delayed from its early start without delaying the finish of the project is the: A) delay. B) float. C) late start. D) late finish.
Antworten
  • M/C
  • Answer: B

Frage 17

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The least amount of float is found: A) in a resource-limited schedule. B) after a burst activity. C) on the critical path. D) after a merge activity.
Antworten
  • M/C
  • Answer: C

Frage 18

Frage
Prior to creating a network, it is important to: A) identify all loops through activities. B) identify the party responsible for each activity. C) calculate the float for each activity. D) understand the activity precedence.
Antworten
  • M/C
  • Answer: D

Frage 19

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Serial activities are those that: A) flow from one to the next in sequence. B) have sequential numbers. C) have the same numbers. D) should be performed simultaneously.
Antworten
  • M/C
  • Answer: A

Frage 20

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Concurrent activities are: A) activities that must be done one after the other. B) activities that can be performed at the same time. C) activities that use labor from the same group of workers. D) activities that use resources from the same resource pool.
Antworten
  • M/C
  • Answer: B

Frage 21

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Which of these statements about this network is best? A) Activities A and B are serial activities. B) Activities B and C are serial activities. C) Activities A and C are serial activities. D) Activity D is a merge activity.
Antworten
  • M/C
  • Answer: D

Frage 22

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Network logic suggests that: A) Activity D can start any time. B) Activity A must be complete before Activity B can be done. C) Activities A, B and C must be complete before Activity D can be done. D) Activity C must begin before Activity B begins.
Antworten
  • M/C
  • Answer: C

Frage 23

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What is the earliest that Activity D can begin if Activity A takes 3 days, Activity B takes 5 days, and Activity C takes 7 days? A) day 15 B) day 7 C) day 5 D) day 3
Antworten
  • M/C
  • Answer: B

Frage 24

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Based on the activity network pictured, what is the best statement? A) Before starting Activity C, Activity A and Activity B must be completed. B) Before starting Activity D, Activity A and Activity B need to be completed. C) Before starting Activity E, Activity A and Activity B need to be completed. D) Before starting Activity C, Activity A and Activity D must be completed.
Antworten
  • M/C
  • Answer: A

Frage 25

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Based on the activity network pictured, what is the best statement? A) Activity C is a burst activity. B) Activity E has one predecessor, Activity B. C) Activity A and Activity C are merge activities. D) There are no serial activities in this network.
Antworten
  • M/C
  • Answer: B

Frage 26

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The length of time expected to complete an activity assuming that its development proceeds normally is called the: A) optimistic duration. B) pessimistic duration. C) most likely duration. D) normal duration.
Antworten
  • M/C
  • Answer: C

Frage 27

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Ray's shipment of materials hit every red light and traffic jam on the way to the site. Upon arrival, half of the material was judged defective, necessitating a trip back to the supplier, and then the same arduous journey back to the site once the new materials were loaded. Traffic was a little better on the second round but the flat tire and subsequent repair caused as much if not more delay than the first trip. In the final analysis: A) the project activity of Material Delivery was pretty close to the optimistic estimate. B) the project activity of Material Delivery was pretty close to the most likely estimate. C) the project activity of Material Delivery had a much higher variance than anticipated. D) the project activity of Material Delivery was pretty close to the pessimistic estimate.
Antworten
  • M/C
  • Answer: D

Frage 28

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The variance of an activity is given by: A) [1/6(b-a)]2. B) 1/6[b-a]. C) [1/36(b-a)]2. D) 1/36[b-a].
Antworten
  • M/C
  • Answer: A

Frage 29

Frage
An activity has an optimistic time estimate of 15 days, a most likely estimate of 24 days, and a pessimistic estimate of 40 days. What is the expected duration of the activity? A) less than 27 days but greater than or equal to 26 days B) less than 26 days but greater than or equal to 25 days C) less than 25 days but greater than or equal to 24 days D) less than 24 days
Antworten
  • M/C
  • Answer: B

Frage 30

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An activity has an optimistic time estimate of 15 days, a most likely estimate of 24 days, and a pessimistic estimate of 40 days. What is the variance of the activity? A) 4.17 B) 25.17 C) 17.36 D) 10.33
Antworten
  • M/C
  • Answer: C

Frage 31

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An activity has an optimistic time estimate of 7 days, a most likely estimate of 12 days, and a pessimistic estimate of 20 days. What is the expected duration of the activity? A) 13 days B) 13.5 days C) 12 days D) 12.5 days
Antworten
  • M/C
  • Answer: D

Frage 32

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An activity has an optimistic time estimate of 7 days, a most likely estimate of 12 days, and a pessimistic estimate of 20 days. What is the expected standard deviation of the activity? A) between 2 and 3 days B) between 3 and 4 days C) between 4 and 5 days D) between 5 and 6 days
Antworten
  • M/C
  • Answer: D

Frage 33

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An activity has a pessimistic time that is three times as long as its most likely time and five times as long as its optimistic time. If the activity variance is 10, what is the expected time? A) about 10 days B) about 14 days C) about 19 days D) about 23 days
Antworten
  • M/C
  • Answer: A

Frage 34

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Activity Z has estimates a = 5, b = 10, m = 7; activity X has estimates a = 4, b = 11, m = 6; and activity Y has estimates a = 3, b = 12, m = 8. Which of the following statements is best? A) Activity X is longer than Activity Y. B) Activity X has a higher standard deviation than Activity Z. C) Activity Z is shorter than Activity Y. D) Activity Y has a smaller variance than Activity Z.
Antworten
  • M/C
  • Answer: B

Frage 35

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What is the early start time for Activity D given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 5 -- B 8 A C 4 A D 5 B, C A) 5 B) 9 C) 13 D) 18
Antworten
  • M/C
  • Answer: C

Frage 36

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What is the late start time for Activity B given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 5 -- B 8 A C 4 A D 5 B, C A) 18 B) 9 C) 13 D) 5
Antworten
  • M/C
  • Answer: D

Frage 37

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What is the late start time for Activity E given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 4 -- B 7 -- C 8 A D 2 A E 4 B F 5 C, D G 9 E, F H 7 G A) 12 B) 13 C) 14 D) 15
Antworten
  • M/C
  • Answer: B

Frage 38

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What is the late finish time for Activity D given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 4 -- B 7 -- C 8 A D 2 A E 4 B F 5 C, D G 9 E, F H 7 G A) 14 B) 13 C) 12 D) 11
Antworten
  • M/C
  • Answer: C

Frage 39

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What is the early start time for Activity G given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 4 -- B 7 -- C 8 A D 2 A E 4 B F 5 C, D G 9 E, F H 7 G A) 14 B) 15 C) 16 D) 17
Antworten
  • M/C
  • Answer: D

Frage 40

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What is the early finish time for Activity F given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 4 -- B 7 -- C 8 A D 2 A E 4 B F 5 C, D G 9 E, F H 7 G A) 17 B) 12 C) 13 D) 26
Antworten
  • M/C
  • Answer: A

Frage 41

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What is the slack time for Activity B given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 4 -- B 7 -- C 8 A D 2 A E 4 B F 5 C, D G 9 E, F H 7 G A) 7 B) 6 C) 5 D) 4
Antworten
  • M/C
  • Answer: B

Frage 42

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What is the slack time for Activity C given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 4 -- B 7 -- C 8 A D 2 A E 4 B F 5 C, D G 9 E, F H 7 G A) 2 B) 1 C) 0 D) 3
Antworten
  • M/C
  • Answer: C

Frage 43

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What is the float start time for Activity C given the activity times and precedence requirements shown in the table? Activity Time Predecessor A 5 -- B 8 A C 4 A D 5 B, C A) 1 B) 2 C) 3 D) 4
Antworten
  • M/C
  • Answer: D

Frage 44

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Use the information in the table to determine the late start time for Activity E. Task Predecessor Duration Early Start Early Finish Late Start Late Finish A -- 8 B A 14 C A 23 8 D C, B 6 23 26 E C 32 F D, E 32 38 A) day 23 B) day 26 C) day 32 D) day 17
Antworten
  • M/C
  • Answer: A

Frage 45

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Use the information in the table to determine the early start time for Activity B. Task Predecessor Duration Early Start Early Finish Late Start Late Finish A -- 8 B A 14 C A 23 8 D C, B 6 23 26 E C 32 F D, E 32 38 A) day 10 B) day 8 C) day 9 D) day 11
Antworten
  • M/C
  • Answer: B

Frage 46

Frage
Use the information in the table to determine the early finish time for Activity D. Task Predecessor Duration Early Start Early Finish Late Start Late Finish A -- 8 B A 14 C A 23 8 D C, B 6 23 26 E C 32 F D, E 32 38 A) day 23 B) day 26 C) day 29 D) day 32
Antworten
  • M/C
  • Answer: C

Frage 47

Frage
Use the information in the table to determine the late finish time for Activity B. Task Predecessor Duration Early Start Early Finish Late Start Late Finish A -- 8 B A 14 C A 23 8 D C, B 6 23 26 E C 32 F D, E 32 38 A) day 17 B) day 26 C) day 20 D) day 23
Antworten
  • M/C
  • Answer: D

Frage 48

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Use the information in the table to determine the slack time for Activity B. Task Predecessor Duration Early Start Early Finish Late Start Late Finish A -- 8 B A 14 C A 23 8 D C, B 6 23 26 E C 32 F D, E 32 38 A) 6 days B) 4 days C) 2 days D) 0 days
Antworten
  • M/C
  • Answer: A

Frage 49

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What is the slack time for activity E? Task Predecessor Duration Early Start Early Finish Late Start Late Finish A -- 8 B A 14 C A 23 8 D C, B 6 23 26 E C 32 F D, E 32 38 A) 1 day B) 0 days C) 2 days D) 4 days
Antworten
  • M/C
  • Answer: B

Frage 50

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Use the network diagram and activity lengths in the nodes to determine the early start time for activity D. A) 8 B) 13 C) 14 D) 21
Antworten
  • M/C
  • Answer: C

Frage 51

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Use the network diagram and activity lengths in the nodes to determine the late start time for activity F. A) 21 B) 24 C) 26 D) 23
Antworten
  • M/C
  • Answer: D

Frage 52

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Use the network diagram and activity lengths in the nodes to determine the early finish time for activity G. A) 26 B) 25 C) 24 D) 23
Antworten
  • M/C
  • Answer: A

Frage 53

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Use the network diagram and activity lengths in the nodes to determine the late finish time for activity C. A) 12 B) 13 C) 14 D) 15
Antworten
  • M/C
  • Answer: C

Frage 54

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Use the network diagram and activity lengths in the nodes to determine the slack time for activity D. A) 3 B) 2 C) 1 D) 0
Antworten
  • M/C
  • Answer: D

Frage 55

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Use the network diagram and activity lengths in the nodes to determine the early start time for activity D. A) 8 B) 13 C) 14 D) 21
Antworten
  • M/C
  • Answer: C

Frage 56

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There's an old saying, "The job is not finished until the paperwork is done." From an activity network standpoint, this does not necessarily mean that the paperwork can't begin until the last non-paperwork activity is completed. It might be possible to work on some paperwork as early activities are completed. In order to depict this in an activity network: A) hammock activities could be drawn. B) subroutines could be added. C) shortcuts can be added to the network. D) laddering could be used to redraw the network.
Antworten
  • M/C
  • Answer: D

Frage 57

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Project Test Bank is composed of activities we will refer to as A, B, C, and D for convenience (and lack of creativity). Durations and precedence requirements are shown in the table. Each of these activities can be conveniently laddered into two sub-activities of equal duration. The first half of each activity serves as the predecessor to its second half and the first half of the original following activity. What is the expected completion time of the laddered project? Activity Length Predecessor A 10 -- B 18 A C 14 A D 20 B, C A) 34 B) 38 C) 42 D) 48
Antworten
  • M/C
  • Answer: A

Frage 58

Frage
Project Test Bank is composed of activities we will refer to as A, B, C, and D for convenience (and lack of creativity). Durations and precedence requirements are shown in the table. Each of these activities can be conveniently laddered into two sub-activities of equal duration. The first half of each activity serves as the predecessor to its second half and the first half of the original following activity. What is the expected completion time of the laddered project? Activity Length Predecessor A 10 -- B 18 A C 14 A D 20 B, C A) 34 B) 38 C) 42 D) 48
Antworten
  • M/C
  • Answer: B

Frage 59

Frage
Project Test Bank is composed of activities we will refer to as A, B, C, and D for convenience (and lack of creativity). Durations and precedence requirements are shown in the table. Each of these activities can be conveniently laddered into two sub-activities of equal duration, so activity C in the original project becomes two activities, C1 and C2, each of which lasts 7 days. The first half of each activity serves as the predecessor to its second half and the first half of the original following activity. What is the difference in the late start time for activity C in the original project and activity C1 in the laddered project? Activity Length Predecessor A 10 -- B 18 A C 14 A D 20 B, C A) 3 B) 5 C) 7 D) 9
Antworten
  • M/C
  • Answer: C

Frage 60

Frage
A gentleman farmer maniacally works on academic projects to raise funds for his true passion, farming. He has identified seven tasks and developed three time estimates (all in days) of the next big project on the farm, replacing the fence at the comedy pasture. Tasks, precedence requirements, and time estimates are shown in the table. What is the expected completion time of the project? Activity Optimistic time Most Likely time Pessimistic time Predecessor Corner Posts 4 5 6 -- String Line 7 8 9 -- Dig Holes 10 12 14 Corner Posts Plant Posts 11 14 17 String Line Weld Top Bar 8 11 14 String Line Paint 9 11 13 Dig Holes, Plant Posts Tack Wire 9 12 16 Weld Top Bar A) 32 days B) 33 days C) 34 days D) 35 days
Antworten
  • M/C
  • Answer: B
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