Commerce and Business
Business StatisticsOperations ManagementManaging Operations AcrossPractice Set 2468
Business StatisticsOperations ManagementManaging Operations AcrossPractice Set 2468Project Management
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- Introduction to Managing Operations Across the Supply ChainOperations and Supply Chain StrategyManaging Processes and CapacityExtension : A Supplement: Process Mapping and AnalysisProductprocess InnovationManufacturing and Service Process StructuresManaging QualityExtension: A Supplement: Quality Improvement ToolsManaging InventoriesLean SystemsCustomer Service ManagementSourcing and Supply ManagementLogistics ManagementDemand Planning: Forecasting and Demand ManagementSales and Operations PlanningMaterials and Resource Requirements PlanningProject ManagementExtension : A Supplement: Advanced Methods for Project SchedulingSustainable Operations Managementpreparing for the Future
Question 1
Free
Multiple Choice
In evaluating time-cost trade-offs, we start by crashing the task on the critical path that:
Choose correct answer/s
Has the lowest cost to reduce by one unit of time.
Has the lowest total crash cost.
Can be reduced the most.
Is the longest.
None of these.
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Question 2
Free
Multiple Choice
Annie is planning a large surprise party for her sister Gwendolyn.She has developed the following plan, including estimates of the time (in hours) and cost necessary to perform each of the tasks required. 
What is the planned duration of the preparation for the surprise party, assuming the critical path is completed?
Choose correct answer/s
16 hours
8 hours
20 hours
30 hours
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Question 3
Free
Multiple Choice
Annie is planning a large surprise party for her sister Gwendolyn.She has developed the following plan, including estimates of the time (in hours) and cost necessary to perform each of the tasks required. 
Annie will save $40 for every hour she can reduce from her plan.Annie has decided to crash her project and use the money she saves to purchase a larger gift for Gwendolyn.Which task should she crash first?
Choose correct answer/s
A
D
C
E
B
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Question 4
Free
Multiple Choice
Annie is planning a large surprise party for her sister Gwendolyn.She has developed the following plan, including estimates of the time (in hours) and cost necessary to perform each of the tasks required. 
If Annie crashes only task A to its minimum duration, how much will she save on the project?
Choose correct answer/s
$55
$185
$160
$50
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Question 5
Free
Multiple Choice
Annie is planning a large surprise party for her sister Gwendolyn.She has developed the following plan, including estimates of the time (in hours) and cost necessary to perform each of the tasks required. 
If Annie has already crashed task A to its minimum duration, what is the next task she should crash?
Choose correct answer/s
A
C
E
F
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Question 6
Multiple Choice
Annie is planning a large surprise party for her sister Gwendolyn.She has developed the following plan, including estimates of the time (in hours) and cost necessary to perform each of the tasks required. 
What is Annie's total benefit from crashing this project by 6 hours?
Choose correct answer/s
$55
$185
$160
$240
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Question 7
Multiple Choice
A project manager has discovered that three tasks are on the critical path for a particular project.She has developed the time estimates (in days) shown in the table below.Complete the table and determine the expected completion time for the project. 
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17 days
18 days
21 days
19 days
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Question 8
Multiple Choice
A project manager has discovered that three tasks are on the critical path for a particular project.She has developed the time estimates (in days) shown in the table below.Complete the table and determine the probability that the project will be completed in 20 days or less. 
Choose correct answer/s
Approximately 92 percent
Approximately 88 percent
Approximately 75 percent
Approximately 84 percent
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Question 9
Multiple Choice
A project manager has discovered that three tasks are on the critical path for a particular project.She has developed the time estimates (in days) shown in the table below. 
The customer has offered a $10,000 bonus if the project is completed within 14 days.What is the probability that the bonus will be earned?
Choose correct answer/s
Approximately 85 percent
Approximately 5 percent
Approximately 2.3 percent
Approximately 97.7 percent
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Question 10
Multiple Choice
A simple sequential project (each task must be completed before the next one can begin) has the time estimates (in days) shown below: 
What is the expected total time for the project?
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7.33 days
9.00 days
10 days
12.67 days
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Question 11
Multiple Choice
A simple sequential project (each task must be completed before the next one can begin) has the time estimates (in days) shown below: 
What is the likelihood the project will be completed in 10 days?
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Between 88 and 88 percent
Between 89 and 92 percent
Between 93 and 98 percent
Between 99 and 100 percent
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Question 12
Multiple Choice
A simple sequential project (each task must be completed before the next one can begin) has the time estimates (in days) shown below: 
What is the probability that the project will be completed within 8.5 days? (Choose the closest answer.)
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80 percent
20 percent
75 percent
5 percent
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Question 13
Multiple Choice
Which of the following statements best describes "crash cost"?
Choose correct answer/s
Estimated cost to reduce a project task duration by one time unit.
Estimated cost to reduce a project duration by one time unit.
Estimated cost to reduce the project schedule by one time unit.
Actual cost to reduce a project duration by one time unit.
Actual cost to change a project schedule.
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Question 14
Multiple Choice
Given the tasks, estimated durations, and crash costs shown below, what is the total cost of the steps needed to provide the cheapest way to reduce the project length by three days? 
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$2,800
$2,500
$1,100
$2,300
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Question 15
Multiple Choice
Given the tasks, estimated durations, and crash costs shown below, if the benefit to crash the project by each day is a maximum of $750, how many days would it be worthwhile to crash the project? 
Choose correct answer/s
0
1
2
3
4
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Question 16
Multiple Choice
Which of the following statements is true regarding crash costs?
Choose correct answer/s
Crash costs tend to increase with each additional day of crashing.
Crash costs tend to decrease with each additional day of crashing.
It is usually cheaper to crash tasks that are not on the critical path.
Additional crash costs are rarely justified in practice.
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Question 17
Multiple Choice
An estimate of the duration of a task that is based on a weighted average of a range of possible task durations is known as:
Choose correct answer/s
Most likely duration.
Expected duration.
Worst-case duration.
Probabilistic duration.
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Question 18
Multiple Choice
Task X has a best-case duration of 4 days, a worst-case duration of 10 days, and a most likely duration of 6 days.Using this information, we can estimate a 50 percent probability that the task will be completed in no more than how many days?
Choose correct answer/s
6.0 days
3.3 days
10.0 days
6.3 days
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Question 19
Multiple Choice
Given the project data below, what is the expected length of path A, B, C? 
Choose correct answer/s
9.0
9.8
9.4
17
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Question 20
Multiple Choice
Given the project data below, what is the standard deviation of durations for path A, B, C? 
Choose correct answer/s
1.4
2.3
1.7
None of the choices is correct
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