Question 1

Which of the following is determined as a direct result of computing the earliest starting and finishing times for the activities of a project network?

Accepted Answer

A) expected project duration 
B) activity slack time 
C) which activities are on the critical path 
D) variance in project duration 
E) maximum project duration 
A) expected project duration 
B) activity slack time 
C) which activities are on the critical path 
D) variance in project duration 
E) maximum project duration

Question 2

What is the total cost of reducing the project to 18 weeks?

Accepted Answer

Total cost

Question 3

Which of the following lead to simulation being a useful tool with uncertain activity times.

Accepted Answer

A) paths that aren't independent 
B) activity times that aren't deterministic 
C) activity times that can't be crashed 
D) non-critical paths that have no variability 
E) critical paths with activities with deterministic time estimates 
A) paths that aren't independent 
B) activity times that aren't deterministic 
C) activity times that can't be crashed 
D) non-critical paths that have no variability 
E) critical paths with activities with deterministic time estimates

Question 4

Which of the following is not a limitation of PERT and similar project-scheduling techniques?

Accepted Answer

A) They force the manager to organize and quantify information. 
B) One or more important activities may be omitted from the network. 
C) Precedence relationships may not all be correct as shown. 
D) Time estimates may contain a "fudge factor." 
E) The use of a computer is essential for large projects. 
A) They force the manager to organize and quantify information. 
B) One or more important activities may be omitted from the network. 
C) Precedence relationships may not all be correct as shown. 
D) Time estimates may contain a "fudge factor." 
E) The use of a computer is essential for large projects.

Question 5

In the probabilistic approach to project network analysis, the time estimate annotated "tm" for any activity is the:

Accepted Answer

A) mean time 
B) median time 
C) most likely time 
D) mode time 
E) marginal time 
A) mean time 
B) median time 
C) most likely time 
D) mode time 
E) marginal time

Question 6

What is the estimated expected (mean) time for activity D?

Accepted Answer

A) 32 days 
B) 41 days 
C) 44 days 
D) 42 days 
E) 40 days 
A) 32 days 
B) 41 days 
C) 44 days 
D) 42 days 
E) 40 days

Question 7

A sequence of activities that leads from the starting node to the finishing node is called a _______.

Accepted Answer

A) Path 
B) Sequel 
C) Trail 
D) Critical sequence 
E) Time line 
A) Path 
B) Sequel 
C) Trail 
D) Critical sequence 
E) Time line

Question 8

The main function of dummy activities is to clarify relationships in network diagrams.

Accepted Answer

A) True 
 B)False

Question 9

The project computing algorithm requires both a forward and backward pass.

Accepted Answer

A) True 
 B)False

Question 10

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 11

Which of the following are limitations of PERT? (I) Time estimates may include a fudge factor.
(II) Important activities may be overlooked.
(III) It is an after-the-fact analysis.

Accepted Answer

A) I and II 
B) I, II, and III 
C) I and III 
D) II and III 
E) I only 
A) I and II 
B) I, II, and III 
C) I and III 
D) II and III 
E) I only

Question 12

Activity D has an optimistic time of 3 days, a pessimistic time of 9 days, and a most likely time of 4 days.Determine its expected time and variance.

Accepted Answer

t_e = (t_o + 4t_m + t_p)/6 =

Question 13

In crashing this project, which activity should be the first to be reduced?

Accepted Answer

The answer of In crashing this project, which activity should...

Question 14

A PERT/CPM activity has an optimistic time estimate of three days, a most likely time estimate of eight days, and a pessimistic time estimate of 10 days.The expected time (in days) of this activity is:

Accepted Answer

A) 7.0 
B) 7.5 
C) 8.0 
D) 8.5 
E) 10.0 
A) 7.0 
B) 7.5 
C) 8.0 
D) 8.5 
E) 10.0

Question 15

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

Accepted Answer

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

Question 16

Activity 7-8 is directly preceded by two activities-activity 5-7 and activity 6-7.Activity 5-7 has an expected time of five and an ES time of six.Activity 6-7 has an expected time of seven and an ES time of seven.Activity 7-8 has an expected time of 10.The ES for activity 7-8 is:

Accepted Answer

A) 11 
B) 14 
C) 21 
D) 24 
E) 25 
A) 11 
B) 14 
C) 21 
D) 24 
E) 25

Question 17

What are the estimated expected (mean) times (in weeks) for activities A-H?

Accepted Answer

15; 20; 10

Exam 17: Project Management

Which of the following is determined as a direct result of computing the earliest starting and finishing times for the activities of a project network?

What is the total cost of reducing the project to 18 weeks?

Which of the following lead to simulation being a useful tool with uncertain activity times.

Which of the following is not a limitation of PERT and similar project-scheduling techniques?

In the probabilistic approach to project network analysis, the time estimate annotated "tm" for any activity is the:

What is the estimated expected (mean) time for activity D?

A sequence of activities that leads from the starting node to the finishing node is called a _______.

The main function of dummy activities is to clarify relationships in network diagrams.

The project computing algorithm requires both a forward and backward pass.

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

Which of the following are limitations of PERT? (I) Time estimates may include a fudge factor. (II) Important activities may be overlooked. (III) It is an after-the-fact analysis.

Activity D has an optimistic time of 3 days, a pessimistic time of 9 days, and a most likely time of 4 days.Determine its expected time and variance.

In crashing this project, which activity should be the first to be reduced?

A PERT/CPM activity has an optimistic time estimate of three days, a most likely time estimate of eight days, and a pessimistic time estimate of 10 days.The expected time (in days) of this activity is:

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

Activity 7-8 is directly preceded by two activities-activity 5-7 and activity 6-7.Activity 5-7 has an expected time of five and an ES time of six.Activity 6-7 has an expected time of seven and an ES time of seven.Activity 7-8 has an expected time of 10.The ES for activity 7-8 is:

What are the estimated expected (mean) times (in weeks) for activities A-H?

Introduction to Operations Management

Competitiveness, Strategy, and Productivity

Forecasting

Product and Service Design

Strategic Capacity Planning for Products and Services

Process Selection and Facility Layout

Work Design and Measurement

Location Planning and Analysis

Management of Quality

Quality Control

Aggregate Planning and Master Scheduling

MRP and ERP

Inventory Management

Jit and Lean Operations

Supply Chain Management

Scheduling

Management of Waiting Lines

Linear Programming

Extension 4: Reliability

Extension 5: Decision Theory

Extension 7: Learning Curves

Extension 8: The Transportation Model

Extension 10: Acceptance Sampling

Extension 14: Maintenance

Filters

In the probabilistic approach to project network analysis, the time estimate annotated "t_m" for any activity is the: