Exam 10: Project Scheduling: Lagging, crashing, and Activity Networks

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Use the Gantt chart and the activity list to determine which resource is used the most. Use the Gantt chart and the activity list to determine which resource is used the most.    Use the Gantt chart and the activity list to determine which resource is used the most.

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Use the information in the table (all times are in days)to determine the lowest extra cost for an 18-day project. Use the information in the table (all times are in days)to determine the lowest extra cost for an 18-day project.

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The best approach to network representation of a large and hugely complex project is to:

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What is a Gantt chart,what information does one provide,and what are the benefits of using one?

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The horizontal axis for a Gantt chart is ________.

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What is the minimum cost completion time for this project if the activities have normal and crash costs as indicated and there is a $1,000 fixed cost for each day on site plus a $500 penalty for each activity that is crashed? The crash costs represent the cost of a fully expedited activity.For example,reducing activity Y from 13 days to 12 days costs an extra $100 on top of the $500 expediting cost for a total cost of $2,600.Reducing Y from 13 days to 10 days costs an extra $300 on top of the $500 expediting cost,for a total activity cost of $2,800. What is the minimum cost completion time for this project if the activities have normal and crash costs as indicated and there is a $1,000 fixed cost for each day on site plus a $500 penalty for each activity that is crashed? The crash costs represent the cost of a fully expedited activity.For example,reducing activity Y from 13 days to 12 days costs an extra $100 on top of the $500 expediting cost for a total cost of $2,600.Reducing Y from 13 days to 10 days costs an extra $300 on top of the $500 expediting cost,for a total activity cost of $2,800.

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Gantt charts cannot depict float.

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The most common method for shortening activity durations involves the decision to:

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Crashing costs for a project are governed by the function: 50t2 + 100t where t represents the number of days crashed (see graph).The project manager wants to crash the project,and is willing to pay up to $1,000 per day saved.How many days can be saved before the per-day cost is too high? Crashing costs for a project are governed by the function: 50t<sup>2</sup> + 100t where t represents the number of days crashed (see graph).The project manager wants to crash the project,and is willing to pay up to $1,000 per day saved.How many days can be saved before the per-day cost is too high?

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The least common type of lag relationship occurs when a successor's finish is dependent upon a predecessor's start.

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A project manager ascertained that five different resources are needed to complete a project that has been estimated to last 37 days.Just to be on the safe side,the project manager told the client that the project would definitely be delivered in 40 days and 40 nights and arranged to rent the resources for that period of time.The project manager goes to the local rental center at the start of day 1 of the project,signs a 40-day lease agreement for all five resources,and brings them to the site to begin the project.Analyze the Gantt chart and resource list (activity durations are in parenthesis)and determine how much money is being wasted with this rental plan.If each resource could be rented for just the time it takes to complete each activity,what would the charge to the project be? A project manager ascertained that five different resources are needed to complete a project that has been estimated to last 37 days.Just to be on the safe side,the project manager told the client that the project would definitely be delivered in 40 days and 40 nights and arranged to rent the resources for that period of time.The project manager goes to the local rental center at the start of day 1 of the project,signs a 40-day lease agreement for all five resources,and brings them to the site to begin the project.Analyze the Gantt chart and resource list (activity durations are in parenthesis)and determine how much money is being wasted with this rental plan.If each resource could be rented for just the time it takes to complete each activity,what would the charge to the project be?      A project manager ascertained that five different resources are needed to complete a project that has been estimated to last 37 days.Just to be on the safe side,the project manager told the client that the project would definitely be delivered in 40 days and 40 nights and arranged to rent the resources for that period of time.The project manager goes to the local rental center at the start of day 1 of the project,signs a 40-day lease agreement for all five resources,and brings them to the site to begin the project.Analyze the Gantt chart and resource list (activity durations are in parenthesis)and determine how much money is being wasted with this rental plan.If each resource could be rented for just the time it takes to complete each activity,what would the charge to the project be?      A project manager ascertained that five different resources are needed to complete a project that has been estimated to last 37 days.Just to be on the safe side,the project manager told the client that the project would definitely be delivered in 40 days and 40 nights and arranged to rent the resources for that period of time.The project manager goes to the local rental center at the start of day 1 of the project,signs a 40-day lease agreement for all five resources,and brings them to the site to begin the project.Analyze the Gantt chart and resource list (activity durations are in parenthesis)and determine how much money is being wasted with this rental plan.If each resource could be rented for just the time it takes to complete each activity,what would the charge to the project be?

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What is the cost to finish this project (all activity durations are in weeks and costs in US dollars)as quickly as possible? What is the cost to finish this project (all activity durations are in weeks and costs in US dollars)as quickly as possible?

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A project has the activity duration and cost information indicated in the table where all times are in weeks.There is a penalty of $250 per week for every week the project extends beyond 50 weeks.What is the duration of the least expensive project possible? A project has the activity duration and cost information indicated in the table where all times are in weeks.There is a penalty of $250 per week for every week the project extends beyond 50 weeks.What is the duration of the least expensive project possible?

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What is the late finish for activity D in the network shown in the diagram? What is the late finish for activity D in the network shown in the diagram?

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AOA networks have an advantage over AON networks:

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The critical path may not contain a dummy activity.

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Use the information in the table to create a baseline Gantt chart for the project where activity lengths are given in days. Use the information in the table to create a baseline Gantt chart for the project where activity lengths are given in days.

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Dummy activities have a duration equal to the:

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Quite often the marginal gains in employee productivity decrease dramatically with the increased use of overtime.

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Activity X has the start to finish relationship shown with activity Y and both have early start and finish times as shown.Which statement is best? Activity X has the start to finish relationship shown with activity Y and both have early start and finish times as shown.Which statement is best?

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