question

The Beta distribution is used in project management to A. Calculate slack for activities on the critical path B. Calculate the probability that a project will be completed within its budget C. Calculate expected activity times

answer

C The beta distribution is used to calculate expected activity times by weighting three time estimates including the optimistic time of an activity, the pessimistic time of an activity, and the most likely time for an activity.

question

Which of the following statements regarding PERT analysis is true? A. Each activity has two estimates of its duration. B. Project variance is the sum of all activity variance. C. Only critical activities contribute to the project variances.

answer

C Not A b/c each critical path activity has three estimates of duration - optimistic time, pessimistic time, and most likely time. not B b/c It does not represent the variances of activities that do not fall on the critical path.

question

In a PERT network, non-critical activities that have little slack need to be monitored closely A. because slack is undesirable and needs to be eliminated B. because near-critical paths could become critical paths with small delays in these activities C. because PERT treats all activities as equally important

answer

B Any delay in critical path activities delays the project!! Critical path activities have no slack time...

question

Which of the following is determined during the forward pass? A. Late Finish B. Late Start C. Early Start

answer

C early start and finish times are determined during the forward pass, which is a process used to determine all of the early start times and finish times for activities in a project. The backward pass is a process that finds all the late start and finish times.

question

WBS stands for which of the following project management tools? A. Work Breakdown Structure B. Work Breakdown Status C. Work Breakdown Schedule

answer

A Work Breakdown Structure is a method used to break down projects into individual activities and costs. This is an important step in understanding and defining project timelines and deliverables.

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question

Which of the following is a basic assumption of PERT? A. Only critical path activities in the network must be performed. B. Activity completion times are known with certainty. C. No activity in the network must be repeated.

answer

C PERT assumes that critical and non-critical path activities must be completed. no activity in the network must be repeated. CPM assumes that activity times are known with certainty.

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question

PERT analysis computes the variance of the total project completion time as: A. The sum of the variances of all activities not on the critical path. B. The sum of the variances of all activities on the critical path. C. The sum of the variances of all activities in the project.

answer

B PERT (Program Evaluation and Review Technique) analysis is a technique used to help project managers monitor and control large, complex projects.

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question

Which of the following statements regarding Gantt charts is true A. Gantt charts give a timeline and precedence relationships for each activity of a project. B. Gantt charts use the four standard spines of Methods, Materials, Manpower, and Machinery. C. Gantt charts are visual devices that show the duration of activities in a projec

answer

C Gantt charts graphically specify all of the tasks involved in a project and how much time should be spent doing each activity. The four standard spines of Methods, Materials, Manpower, and Machinery are part of cause and effect diagrams and are typically used in the quality control process.

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question

Dummy activities__________ A. are found in both AOA and AON networks. B. are on the critical path. C. are used when two activities have identical starting and ending events.

answer

C

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question

Which of these statements regarding time-cost tradeoffs in CPM networks is true? A. Crashing shortens the project duration by assigning more resources to one or more of the critical tasks. B. Crashing is not possible unless there are multiple critical paths. C. Crashing a project often reduces the length of long-duration, but noncritical, activities.

answer

A Any activity can be crashed if the duration of time can be reduced by adding resources (additional labor, materials, etc.); if the amount of time won't be reduced there is no need to crash a project. Crashing projects can occur with single (or multiple) critical paths.

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question

With respect to PERT and CPM, slack__________ A. is the amount of time a task may be delayed without changing the overall project completion time. B. is the latest time an activity can be started without delaying the entire project. C. is the latest time an activity can be finished without delaying the entire project.

answer

A Latest start is the term used to describe the latest time an activity can be started without delaying the entire project. Latest finish is the term used to describe the latest time an activity can be completed and not delay the completion time of the entire project.

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MAR u3 project mana – Flashcards

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