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Flashcards in DSM 3 Deck (14)
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1
Q

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.

2
Q

Which of the following statements regarding PERT analysis is true?

A

Only critical activities contribute to the project variances.

3
Q

PERT analysis computes the variance of the total project completion time as:

A

The sum of the variances of all activities on the critical path.

4
Q

The EF of an activity is the:

A

ES+ Activity Time

5
Q

Which of the following statements regarding Gantt charts is true?

A

Gantt charts are visual devices that show the duration of activities in a project.

6
Q

In a PERT network, non-critical activities that have little slack need to be monitored closely__________

A

because near-critical paths could become critical paths with small delays in these activities

7
Q

The Beta distribution is used in project management to

A

calculate slack of activities on the critical path

8
Q

An activity has an optimistic time of 15 days, a most likely time of 18 days, and a pessimistic time of 27 days. What is the expected time?

A

19

9
Q

Basic assumption of PERT

A

no activity in the network must be repeated

10
Q

___is the amount of time an individual activity in a network can be delayed without delaying the entire project.

A

slack time

11
Q

A simple CPM network has five activities, A, B, C, D, and E. A is an immediate predecessor of C and of D. B is also an immediate predecessor of C and of D. C and D are both immediate predecessors of E. Given the above scenario, which of the following is correct?

A

There are four paths in this network

12
Q

WBS stands for which of the following project management tools?

A

Work Breakdown Structure

13
Q

Dummy activities

A

are used when two activities have identical starting and ending events.

14
Q

The critical path of a network is the__________

A

The longest time path through the network