Question 1

Only activities on the critical path are initial candidates for crashing.

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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 4

Activity C in a project network has an optimistic time estimate of five days,a most likely time estimate of seven days,and a pessimistic time estimate of nine days.Its expected duration is approximately:

Accepted Answer

A)  5 days.
B)  6 days.
C)  7 days.
D)  8 days.
E)  9 days.F) None of the above
G) C) and D)

Question 5

The path in a project network with the average duration is the critical path.

Accepted Answer

A) True 
 B)False

Question 6

Figure  (time in days) 
-What is the estimated slack time for activity A?

Accepted Answer

A)  0 days.
B)  20 days.
C)  40 days.
D)  60 days.
E)  100 days.F) None of the above
G) B) and D)

Question 7

PERT/Cost:

Accepted Answer

A)  finds the penalty costs if a project is not completed on time.
B)  compares the actual budget with the planned budget.
C)  shows management where to focus attention during the project.
D)  a and b only.
E)  b and c only.F) B) and D)
G) A) and E)

Question 8

PERT/CPM can answer which of the following questions?

Accepted Answer

A)  When do activities need to start and finish to meet a deadline?
B)  How much delay can be tolerated for certain activities?
C)  Given uncertainties,what is the probability that a project will finish on time?
D)  What is the least expensive way to expedite a project to meet a deadline?
E)  All of the above.F) A) and C)
G) A) and B)

Question 9

Once a project is underway,the project manager is responsible for effectively managing:

Accepted Answer

A)  the people.
B)  costs.
C)  time.
D)  a and b.
E)  a,b,and c.F) A) and D)
G) A) and C)

Question 10

Which of the following are ways of crashing an activity?

Accepted Answer

A)  Using overtime.
B)  Hiring more workers.
C)  Using specialized equipment.
D)  All of the above.
E)  None of the above.F) A) and E)
G) A) and D)

Question 11

If the variance of an activity duration is equal to 1 then all the durations are the same.

Accepted Answer

A) True 
 B)False

Question 12

AON project networks have which of the following advantages over AOA networks?

Accepted Answer

A)  They are easier to construct.
B)  They allow the project to be completed faster.
C)  They are easier to revise when there are changes in a project.
D)  a and c only.
E)  b and c only.F) A) and C)
G) B) and E)

Question 13

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 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) C) and D)
G) D) and E)

Question 15

Figure  (time in days) 
-What is the estimated mean time for activity E?

Accepted Answer

A)  91 days.
B)  99 days.
C)  100 days.
D)  101 days.
E)  115 days.F) C) and D)
G) B) and D)

Question 16

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) D) and E)
G) B) and E)

Question 17

Which of the following is not a feature of PERT/CPM?

Accepted Answer

A)  An estimate of how long a project will take.
B)  A graphical display of project activities.
C)  An indication of crucial activities.
D)  An indication of slack time.
E)  All are features.F) C) and D)
G) A) and E)

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Figure  (time in days) 
-What is the estimated standard deviation in the time for activity Z?

Accepted Answer

A)  2 days.
B)  3 days.
C)  4 days.
D)  8 days.
E)  5 days.F) C) and D)
G) A) and B)

Question 20

The standard deviation of the critical path is equal to the sum of the standard deviations of all the activities on the critical path.

Accepted Answer

A) True 
 B)False

Exam 19: CD - Pertcpm Models for Project Management

PERT/CPM can answer which of the following questions?

Correct AnswerverifiedShow Answer

If the variance of an activity duration is equal to 1 then all the durations are the same.

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

Which of the following are ways of crashing an activity?

Correct AnswerverifiedShow Answer

Activity C in a project network has an optimistic time estimate of five days,a most likely time estimate of seven days,and a pessimistic time estimate of nine days.Its expected duration is approximately:

Correct AnswerverifiedShow Answer

An important assumption in PERT calculations is:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The standard deviation of the critical path is equal to the sum of the standard deviations of all the activities on the critical path.

Correct AnswerverifiedShow Answer

Once a project is underway,the project manager is responsible for effectively managing:

Correct AnswerverifiedShow Answer

Figure (time in days) -What is the estimated slack time for activity A?

Correct AnswerverifiedShow Answer

The path in a project network with the average duration is the critical path.

Correct AnswerverifiedShow Answer

Which of the following is not a feature of PERT/CPM?

Correct AnswerverifiedShow Answer

Figure (time in days) -What is the estimated standard deviation in the time for activity Z?

Correct AnswerverifiedShow Answer

AON project networks have which of the following advantages over AOA networks?

Correct AnswerverifiedShow Answer

Figure (time in days) -What is the estimated mean time for activity E?

Correct AnswerverifiedShow Answer

PERT/Cost:

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

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

Only activities on the critical path are initial candidates for crashing.

Correct AnswerverifiedShow Answer

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