Which of the following impacts the critical path?A.Changing the task duration.B.Reduce the free float of an activity.C.Executing a backward passD.A or BE.None of the above.

The critical path in a schedule network is the path that:

A.Takes the longest time to complete

B.Must be done before any other tasks

C.Allows some flexibility in scheduling a start time.

D.Is not affected by schedule slippage

E.All of the above.

A non-critical path activity is completed in half the time. Then,

A.The critical path is also reduced.

B.The slack in the path containing this activity will increase.

C.The total cost for this activity has decreased.

D.Manpower from this activity can be assigned to other activities.

E.All of the above.

On a precedence diagram, the arrow between two boxes is called:

A.An activity.

B.A constraint.

C.An event.

D.The critical path.

E.None of above.

Standard deviation of project completion is _____ .

A a relationship of the uncertainty of critical path activities.

B an indicator of project end date target confidence

C a function of critical path, leveling and project costs.

D A and B

E All of the above.

112 The schedule risk is the _____ .

A. the accumulated "expected' durations which maintain project completion.

B. Critical Path adjusted by "high-risk" activity float.

C. highest risk path that maintains quality.

D. Critical Path when calculated with "most likely" duration.

E. highest risk path that contributes the most risk toward the project completion

163 During a project review meeting, you discover that your $250,000 project has a negative schedule variance of $20,000 which equates to 12% of the work scheduled to this point of time. You can therefore conclude that:

A. The project will be completed late.

B. The critical path has been lengthened.

C. the costs are being overrun.

D. Overtime will be required to maintain the original critical path.

E. None of the above.

● The critical path is calculated by

A subtracting the end date of task one from the start date of task two.

B determining which tasks have the least amount of total slack.

C totaling the time for all activities.

D determining the shortest path through the network.

E Determining which tasks have the most slack

● Free float is the amount of time that an activity may be delayed with out affecting the _____.

A Early start of the succeeding activities.

B Late start of the succeeding activities.

C Project finish.

D Cost of the project.

E None of the above.

● The first step in building a PERT/CPM network is to:

A Create a flow chart

B Determine the critical path

C Show task relationships

D Create a work breakdown structure

E None of the above.

● Bar charts are most appropriate for:

A Comparing actual to planned performance to each activity.

B Showing slack time.

C Showing critical path dependencies.

D Showing which activities can be rearranged in parallel.

E All of the above.

In the following statements about graph operations，which one is NOT correct?

A．Finding critical path is an operation on directed graph

B．Finding critical path is an operation on undirected graph

C．Spanning tree of a graph may not be unique

D．Minimum spanning tree of a graph may not be unique

Bar charts are most appropriate for:

A.Comparing actual to planned performance to each activity.

B.Showing slack time.

C.Showing critical path dependencies.

D.Showing which activities can be rearranged in parallel.

E.All of the above.

Activities with zero time duration are referred to as:

A.Critical path activites.

B.Noncritical path activities.

C.Slack time activities.

D.Dummies

E.None of above.

During a project review meeting, you discover that your $250,000 project has a negative schedule variance of $20,000 which equates to 12% of the work scheduled to this point of time. You can therefore conclude that:

A . The project will be completed late.

B . The critical path has been lengthened.

C . the costs are being overrun.

D . Overtime will be required to maintain the original critical path.

E . None of the above.

The schedule risk is the _____ .

A the accumulated "expected' durations which maintain project completion.

B Critical Path adjusted by "high-risk" activity float.

C highest risk path that maintains quality.

D Critical Path when calculated with "most likely" duration.

E highest risk path that contributes the most risk toward the project completion.

160 Which of the following impacts the critical path?

A. Changing the task duration.

B. Reduce the free float of an activity.

C. Executing a backward pass

D. A or B

E. None of the above

● Which of the following is indicative of negative float?

A The late start date is earlier than the early start date.

B The critical path supports the imposed end date.

C The early finish date is equal to the late finish date.

D When leads are employed in the schedule.

E The project is sinking.

● Which of the following impacts the critical path?

A Changing the task duration.

B Reduce the free float of an activity.

C Executing a backward pass

D A or B

E None of the above.

● In crashing a task, you would focus on:

A As many tasks as possible.

B Non critical tasks.

C Accelerating performance of tasks on critical path.

D Accelerate performance by minimizing cost.

E A and D.

● The critical path in a schedule network is the path that:

A Takes the longest time to complete

B Must be done before any other tasks

C Allows some flexibility in scheduling a start time.

D Is not affected by schedule slippage

E All of the above.

● A non-critical path activity is completed in half the time. Then,

A The critical path is also reduced.

B The slack in the path containing this activity will increase.

C The total cost for this activity has decreased.

D Manpower from this activity can be assigned to other activities.

E All of the above.