Question 1

A critical activity can be part of a noncritical path.

Accepted Answer

A) True 
 B)False  True

Question 2

Slack equals

Accepted Answer

A) LF - EF. 
B) EF - LF. 
C) EF - LS. 
D) LF - ES. 
A) LF - EF. 
B) EF - LF. 
C) EF - LS. 
D) LF - ES. B

Question 3

Critical activities are those that can be delayed without delaying the entire project.

Accepted Answer

A) True 
 B)False  False

Question 4

The earliest finish time for the final activity is the project duration.

Accepted Answer

A) True 
 B)False

Question 5

Which is not a significant challenge of project scheduling?

Accepted Answer

A) deadlines exist. 
B) activities are independent. 
C) many employees could be required. 
D) delays are costly. 
A) deadlines exist. 
B) activities are independent. 
C) many employees could be required. 
D) delays are costly.

Question 6

The latest finish time for an activity is the largest of the latest start times for all activities that immediately follow the activity.

Accepted Answer

A) True 
 B)False

Question 7

Activities K, M and S immediately follow activity H, and their latest start times are 14, 18, and 11.The latest finish time for activity H

Accepted Answer

A) is 11. 
B) is 14. 
C) is 18. 
D) cannot be determined. 
A) is 11. 
B) is 14. 
C) is 18. 
D) cannot be determined.

Question 8

Which of the following is a general rule for crashing activities?

Accepted Answer

A) Crash only non-critical activities. 
B) Crash activities with zero slack. 
C) Crash activities with the greatest number of predecessors. 
D) Crash the path with the fewest activities. 
A) Crash only non-critical activities. 
B) Crash activities with zero slack. 
C) Crash activities with the greatest number of predecessors. 
D) Crash the path with the fewest activities.

Question 9

Activities G, P, and R are the immediate predecessors for activity W.If the earliest finish times for the three are 12, 15, and 10, then the earliest start time for W

Accepted Answer

A) is 10. 
B) is 12. 
C) is 15. 
D) cannot be determined. 
A) is 10. 
B) is 12. 
C) is 15. 
D) cannot be determined.

Question 10

Which of the following is always true about a critical activity?

Accepted Answer

A) LS = EF. 
B) LF = LS. 
C) ES = LS. 
D) EF = ES. 
A) LS = EF. 
B) LF = LS. 
C) ES = LS. 
D) EF = ES.

Question 11

PERT and CPM

Accepted Answer

A) are most valuable when a small number of activities must be scheduled. 
B) have different features and are not applied to the same situation. 
C) do not require a chronological relationship among activities. 
D) have been combined to develop a procedure that uses the best of each. 
A) are most valuable when a small number of activities must be scheduled. 
B) have different features and are not applied to the same situation. 
C) do not require a chronological relationship among activities. 
D) have been combined to develop a procedure that uses the best of each.

Question 12

Activities with zero slack

Accepted Answer

A) can be delayed. 
B) must be completed first. 
C) lie on a critical path. 
D) have no predecessors. 
A) can be delayed. 
B) must be completed first. 
C) lie on a critical path. 
D) have no predecessors.

Question 13

Arcs in a project network indicate

Accepted Answer

A) completion times. 
B) precedence relationships. 
C) activities. 
D) the critical path. 
A) completion times. 
B) precedence relationships. 
C) activities. 
D) the critical path.

Question 14

In deciding which activities to crash, one must

Accepted Answer

A) crash all critical activities. 
B) crash largest-duration activities. 
C) crash lowest-cost activities. 
D) crash activities on the critical path(s) only. 
A) crash all critical activities. 
B) crash largest-duration activities. 
C) crash lowest-cost activities. 
D) crash activities on the critical path(s) only.

Question 15

PERT and CPM are applicable only when there is no dependence among activities.

Accepted Answer

A) True 
 B)False

Question 16

When activity times are uncertain, an activity's most likely time is the same as its expected time.

Accepted Answer

A) True 
 B)False

Question 17

The length of time an activity can be delayed without affecting the project completion time is the slack.

Accepted Answer

A) True 
 B)False

Question 18

When activity times are uncertain,

Accepted Answer

A) assume they are normally distributed. 
B) calculate the expected time, using (a + 4m + b)/6. 
C) use the most likely time. 
D) calculate the expected time, using (a + m + b)/3. 
A) assume they are normally distributed. 
B) calculate the expected time, using (a + 4m + b)/6. 
C) use the most likely time. 
D) calculate the expected time, using (a + m + b)/3.

Question 19

The linear programming model for crashing presented in the textbook assumes that any portion of the activity crash time can be achieved for a corresponding portion of the activity crashing cost.

Accepted Answer

A) True 
 B)False

Question 20

Activities following a node

Accepted Answer

A) can begin as soon as any activity preceding the node has been completed. 
B) have an earliest start time equal to the largest of the earliest finish times for all activities entering the node. 
C) have a latest start time equal to the largest of the earliest finish times for all activities entering the node. 
D) None of the alternatives is correct. 
A) can begin as soon as any activity preceding the node has been completed. 
B) have an earliest start time equal to the largest of the earliest finish times for all activities entering the node. 
C) have a latest start time equal to the largest of the earliest finish times for all activities entering the node. 
D) None of the alternatives is correct.

Exam 9: Project Scheduling: Pertcpm

A critical activity can be part of a noncritical path.

Slack equals

Critical activities are those that can be delayed without delaying the entire project.

The earliest finish time for the final activity is the project duration.

Which is not a significant challenge of project scheduling?

The latest finish time for an activity is the largest of the latest start times for all activities that immediately follow the activity.

Activities K, M and S immediately follow activity H, and their latest start times are 14, 18, and 11.The latest finish time for activity H

Which of the following is a general rule for crashing activities?

Activities G, P, and R are the immediate predecessors for activity W.If the earliest finish times for the three are 12, 15, and 10, then the earliest start time for W

Which of the following is always true about a critical activity?

PERT and CPM

Activities with zero slack

Arcs in a project network indicate

In deciding which activities to crash, one must

PERT and CPM are applicable only when there is no dependence among activities.

When activity times are uncertain, an activity's most likely time is the same as its expected time.

The length of time an activity can be delayed without affecting the project completion time is the slack.

When activity times are uncertain,

The linear programming model for crashing presented in the textbook assumes that any portion of the activity crash time can be achieved for a corresponding portion of the activity crashing cost.

Activities following a node

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