Construction Management Fundamentals
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Questions and Answers

What is the primary purpose of quantity take-off in construction management?

  • Measuring specific quantities
  • Extracting quantities from drawings (correct)
  • Creating a bill of quantities
  • Predicting project costs

    • Which output is typically associated with cost estimating?

  • Bill of materials
  • Cost estimate (correct)
  • Bill of quantities
  • Detailed unit price analysis

    • How do well-prepared estimates and bills of quantities benefit project management?

  • They solely focus on labor costs.
  • They allow for the creation of an unrealistic project schedule.
  • They eliminate all project risks.
  • They provide insights into scope, resource requirements, and potential constraints. (correct)

    • What does construction planning typically include?

    <p>Site analysis, risk assessment, and strategy development</p> Signup and view all the answers

    What is a key outcome of effective construction scheduling?

    <p>It helps in identifying critical path activities.</p> Signup and view all the answers

    What distinguishes planning from scheduling in construction management?

    <p>Planning defines what to do, while scheduling outlines how and when to do it.</p> Signup and view all the answers

    What is the output of quantity surveying?

    <p>Detailed unit price analysis</p> Signup and view all the answers

    What is typically NOT a component of construction planning?

    <p>Creating a detailed timeline for task execution</p> Signup and view all the answers

    What is the primary purpose of arranging a timeline in project management?

    <p>To determine task duration and sequence</p> Signup and view all the answers

    Which of the following represents a Gantt chart feature?

    <p>Horizontal bars indicating task duration</p> Signup and view all the answers

    What are milestones in a Gantt chart?

    <p>Key dates, deliverables, or deadlines</p> Signup and view all the answers

    What does drawing a dependency line between tasks indicate?

    <p>There is a sequential relationship between the tasks</p> Signup and view all the answers

    Which technique is developed for handling unpredictable project activities?

    <p>Project Evaluation and Review Technique (PERT)</p> Signup and view all the answers

    What differentiates the Critical Path Method from PERT?

    <p>CPM focuses on predictable project timelines</p> Signup and view all the answers

    In the sample problem, what is the total duration of the project?

    <p>26 Days</p> Signup and view all the answers

    Which task is not a predecessor for any other task in the sample problem?

    <p>A</p> Signup and view all the answers

    Which activities must be completed before activity G can start?

    <p>Activity E and F</p> Signup and view all the answers

    What defines a dummy activity in project management?

    <p>An activity that has no duration and shows restrictions</p> Signup and view all the answers

    What is considered the optimistic time estimate in project management?

    <p>The minimum time it takes to complete a task</p> Signup and view all the answers

    Which of the following statements is true regarding project network rules?

    <p>The network must be continuous with no loops</p> Signup and view all the answers

    What is the method to calculate the expected time for completing a task?

    <p>Using optimistic, pessimistic, and most likely times in a formula</p> Signup and view all the answers

    In the provided estimated time table, what is the expected time for Activity C?

    <p>10</p> Signup and view all the answers

    Which activities must be completed prior to starting both activities J and K?

    <p>Activities H and I</p> Signup and view all the answers

    How many time estimates are considered when determining completion time for a task?

    <p>Three</p> Signup and view all the answers

    What does a node in a PERT chart represent?

    <p>The beginning or end of an activity</p> Signup and view all the answers

    Which step is NOT part of creating a PERT chart?

    <p>Define the total budget for the project</p> Signup and view all the answers

    What characterizes a Burst Activity in a PERT chart?

    <p>An activity is followed by multiple concurrent activities</p> Signup and view all the answers

    In PERT analysis, what is the purpose of using optimistic, pessimistic, and likely estimates for activity durations?

    <p>To provide a probabilistic estimate of project completion time</p> Signup and view all the answers

    What is the main focus of a Task-focused project diagram as compared to a PERT diagram?

    <p>It considers the project from the customer's perspective</p> Signup and view all the answers

    Which statement best describes the role of arrows in a PERT chart?

    <p>They represent the order of tasks and dependencies</p> Signup and view all the answers

    Which of the following correctly represents a characteristic of deterministic approaches to project scheduling?

    <p>Activity durations are defined and known</p> Signup and view all the answers

    What does an event signify in the context of PERT and CPM charts?

    <p>The completion of all tasks leading to a milestone</p> Signup and view all the answers

    What is the primary purpose of calculating the critical path in project management?

    <p>To identify the longest sequence of dependent tasks that affects project duration</p> Signup and view all the answers

    Which of the following represents the earliest possible date an activity can start?

    <p>Earliest start time (ES)</p> Signup and view all the answers

    In drawing node diagrams for the critical path method, what is a recommended practice?

    <p>Minimizing line crossing in the diagram</p> Signup and view all the answers

    How is the earliest finish time (EF) calculated?

    <p>EF = ES + t - 1</p> Signup and view all the answers

    What is the last possible date to start an activity without delaying the project referred to as?

    <p>Latest start time (LS)</p> Signup and view all the answers

    What would be the value of ES for the first activity in a project timeline?

    <p>1</p> Signup and view all the answers

    Which calculation is performed to determine the latest finish time (LF) of an activity?

    <p>LF = LS + t</p> Signup and view all the answers

    Which of the following metrics is not directly related to the forward pass calculation?

    <p>Latest start time (LS)</p> Signup and view all the answers

    Study Notes

    Contracting and Estimating

    • Quantity take-off is used in project management for extracting measurements from drawings
    • Cost estimating is used for predicting project costs
    • Quantity surveying is used for measuring quantities in a project, and creating a bill of quantities

    Construction Planning and Scheduling

    • Planning and scheduling are essential aspects of construction project management
    • Construction projects are unique and require the application of experience and judgment to ensure optimal performance
    • Construction planning defines project objectives, requirements, and constraints
    • Construction scheduling involves creating a detailed timeline for project tasks

    Gantt Chart

    • Gantt charts are a visual way of organizing and scheduling tasks
    • Arrange tasks on the chart with duration, start and end dates, and dependencies
    • Milestones can be added as key dates or deliverables

    PERT and CPM Scheduling Techniques

    • PERT (Project Evaluation and Review Technique) is used for projects with uncertain completion times
    • CPM (Critical Path Method) is used for projects with predictable completion times
    • CPM uses a statistical algorithm with a defined start and end time
    • PERT is probabilistic and estimates activity durations optimistically, pessimistically, and realistically
    • CPM is deterministic and assumes activity durations are known
    • Both PERT and CPM use network analyses to map project activities

    ### PERT

    • PERT charts show the sequence and dependencies of project tasks
    • PERT uses three time estimates for each task: optimistic, pessimistic, and most likely
    • The expected time for completing a task in PERT is calculated using: (Optimistic Time + (4 * Most Likely Time) + Pessimistic Time) / 6

    CPM

    • CPM charts calculate the earliest and latest start and finish times (ES, EF, LS, LF) for each task
    • CPM uses a forward pass calculation to determine ES and EF, and a backward pass to determine LS and LF
    • The critical path in CPM refers to the longest sequence of activities in a project, where any delay in a critical path task will delay the entire project

    Critical Path Formula

    • The ES of the first activity on any path is always 1, as it represents the project start. The ES of all other activities is calculated by adding 1 to the EF of the preceding activity
    • The EF is calculated by adding the ES, task duration, and subtracting 1.
    • The LF of the last activity on any path is always the same, as it represents the project end.

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    Midterm - Construction Planning and Scheduling PDF

    Description

    This quiz covers essential concepts in construction management, including quantity take-off, cost estimating, and planning. Understand the significance of Gantt charts and scheduling techniques such as PERT and CPM for effective project execution. Test your knowledge on these key topics to enhance your project management skills.

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