Question 1

There are four activities on the critical path Coincidentally,their standard deviations are all equal to 4 The standard deviation of the critical path is therefore equal to:

Accepted Answer

A)  2 days 
B)  4 days 
C)  8 days 
D)  16 days 
E)  64 days F) B) and D)
G) C) and E)

Question 2

What is the estimated standard deviation in the time for activity E?

Accepted Answer

A)  2 days 
B)  3 days 
C)  4 days 
D)  16 days 
E)  24 days F) A) and B)
G) B) and D) C

Question 3

What is the estimated mean time for project completion?

Accepted Answer

A)  100 days 
B)  140 days 
C)  199 days 
D)  200 days 
E)  440 days F) A) and B)
G) A) and C) D

Question 4

In a project network the critical path is the sequence of activities which has:

Accepted Answer

A)  the most activities 
B)  the fewest activities 
C)  the most events 
D)  the longest time 
E)  the greatest variance F) C) and D)
G) A) and B)

Question 5

-What is the probability that the critical path will be completed within 200 days?

Accepted Answer

A)  0 8413 
B)  0 9544 
C)  0 9772 
D)  0 9974 
E)  0 9987 F) B) and C)
G) C) and D)

Question 6

The earliest finish time for an activity is equal to the latest finish time minus the activity slack

Accepted Answer

A) True 
 B)False

Question 7

The CPM method provides an excellent procedure for evaluating time-cost tradeoffs

Accepted Answer

A) True 
 B)False

Question 8

Given this information about activity H: ES = 10,EF = 15,LS = 16,and LF = 21,we can determine that the amount of slack associated with the activity is:

Accepted Answer

A)  0 
B)  1 
C)  5 
D)  6 
E)  11 F) A) and B)
G) D) and E)

Question 9

When finding the approximate probability of project duration,it is necessary to know which of the following?

Accepted Answer

A)  The mean and variance of each activity 
B)  The mean of each activity on the critical path 
C)  The standard deviation of only the activities on the critical path 
D)  Each activity's probability of completion 
E)  The distribution of activity times F) A) and E)
G) None of the above

Question 10

-What is the estimated standard deviation in the time for activity E?

Accepted Answer

A)  1 days 
B)  2 days 
C)  3 days 
D)  4 days 
E)  5 days F) A) and D)
G) A) and C)

Question 11

Project managers must often function in an environment that is beset with uncertainties

Accepted Answer

A) True 
 B)False

Question 12

The project management strategy of injecting additional resources in order to reduce the length of the project is called:

Accepted Answer

A)  expediting 
B)  rushing 
C)  panicking 
D)  crashing 
E)  None of the above F) A) and E)
G) B) and E)

Question 13

Activity C has an early start time of 8,an early finish time of 12,a latest start time of 13,and a latest finish time of 17 Its slack is:

Accepted Answer

A)  0 
B)  1 
C)  4 
D)  5 
E)  9 F) A) and E)
G) None of the above

Question 14

An important assumption in PERT calculations is:

Accepted Answer

A)  activity durations are normally distributed 
B)  activity durations are independent 
C)  a computer will be available to do the calculations 
D)  a and b only 
E)  a and c only F) A) and B)
G) C) and D)

Question 15

The slack of any activity is the amount of time that the activity can be delayed without delaying the completion of the project

Accepted Answer

A) True 
 B)False

Question 16

The standard deviation of a path is computed as:

Accepted Answer

A)  the sum of the standard deviations of all activities on the path 
B)  the square root of the sum of the standard deviations of all activities on the path 
C)  the sum of the variances of all activities on the path 
D)  the square root of the sum of the variances of all activities on the path 
E)  None of the above F) A) and D)
G) A) and C)

Question 17

In order to determine the probability of timely project completion,it is sometimes necessary to take into account paths other than the critical path

Accepted Answer

A) True 
 B)False

Question 18

In an Activity-On-Node project network,the nodes are used to separate an activity from each of its immediate predecessors

Accepted Answer

A) True 
 B)False

Question 19

In project network analysis,slack refers to the difference between:

Accepted Answer

A)  observed and predicted times 
B)  optimistic and pessimistic times 
C)  latest finish and latest start times 
D)  earliest finish and earliest start times 
E)  latest start and earliest start times F) A) and C)
G) C) and E) E

Question 20

An activity has an optimistic time estimate of three days,a most likely time estimate of eight days,and a pessimistic time estimate of ten days The expected duration of this activity is:

Accepted Answer

A)  7 0 days 
B)  7 5 days 
C)  8 0 days 
D)  8 5 days 
E)  10 0 days F) None of the above
G) A) and B)

Exam 16: Pert CPM models for project management

There are four activities on the critical path Coincidentally,their standard deviations are all equal to 4 The standard deviation of the critical path is therefore equal to:

Correct AnswerverifiedShow Answer

What is the estimated standard deviation in the time for activity E?

Correct AnswerverifiedC

What is the estimated mean time for project completion?

Correct AnswerverifiedD

In a project network the critical path is the sequence of activities which has:

Correct AnswerverifiedShow Answer

-What is the probability that the critical path will be completed within 200 days?

Correct AnswerverifiedShow Answer

The earliest finish time for an activity is equal to the latest finish time minus the activity slack

Correct AnswerverifiedShow Answer

The CPM method provides an excellent procedure for evaluating time-cost tradeoffs

Correct AnswerverifiedShow Answer

Given this information about activity H: ES = 10,EF = 15,LS = 16,and LF = 21,we can determine that the amount of slack associated with the activity is:

Correct AnswerverifiedShow Answer

When finding the approximate probability of project duration,it is necessary to know which of the following?

Correct AnswerverifiedShow Answer

-What is the estimated standard deviation in the time for activity E?

Correct AnswerverifiedShow Answer

Project managers must often function in an environment that is beset with uncertainties

Correct AnswerverifiedShow Answer

The project management strategy of injecting additional resources in order to reduce the length of the project is called:

Correct AnswerverifiedShow Answer

Activity C has an early start time of 8,an early finish time of 12,a latest start time of 13,and a latest finish time of 17 Its slack is:

Correct AnswerverifiedShow Answer

An important assumption in PERT calculations is:

Correct AnswerverifiedShow Answer

The slack of any activity is the amount of time that the activity can be delayed without delaying the completion of the project

Correct AnswerverifiedShow Answer

The standard deviation of a path is computed as:

Correct AnswerverifiedShow Answer

In order to determine the probability of timely project completion,it is sometimes necessary to take into account paths other than the critical path

Correct AnswerverifiedShow Answer

In an Activity-On-Node project network,the nodes are used to separate an activity from each of its immediate predecessors

Correct AnswerverifiedShow Answer

In project network analysis,slack refers to the difference between:

Correct AnswerverifiedE

An activity has an optimistic time estimate of three days,a most likely time estimate of eight days,and a pessimistic time estimate of ten days The expected duration of this activity is:

Correct AnswerverifiedShow Answer

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E

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