Question 1

If an activity whose normal duration is 15 days can be shortened to 10 days for an added cost of $2,000, the crash cost per period is

Accepted Answer

A)  $400 
B)  $2,000 
C)  $10,000 
D)  $20,000 
E)  $30,000 
A)  $400 
B)  $2,000 
C)  $10,000 
D)  $20,000 
E)  $30,000 A

Question 2

A project whose critical path has an estimated time of 120 days with a variance of 100 has a 20% chance that the project will be completed before day (rounded to nearest day).

Accepted Answer

A)  98 
B)  112 
C)  120 
D)  124 
E)  220 
A)  98 
B)  112 
C)  120 
D)  124 
E)  220 B

Question 3

An activity on a PERT network has these time estimates: optimistic = 2, most likely = 5, and pessimistic = 10. Its expected time is

Accepted Answer

A)  5.00 
B)  5.33 
C)  5.67 
D)  17.00 
E)  none of these 
A)  5.00 
B)  5.33 
C)  5.67 
D)  17.00 
E)  none of these B

Question 4

The phases of project management are

Accepted Answer

A)  planning, scheduling, and controlling 
B)  planning, programming, and budgeting 
C)  planning, organizing, staffing, leading, and controlling 
D)  different for manufacturing projects than for service projects 
E)  GANTT, CPM, and PERT 
A)  planning, scheduling, and controlling 
B)  planning, programming, and budgeting 
C)  planning, organizing, staffing, leading, and controlling 
D)  different for manufacturing projects than for service projects 
E)  GANTT, CPM, and PERT

Question 5

Describe the differences between a Gantt chart and a PERT/CPM network.

Accepted Answer

The differences between a Gant

Question 6

Contract requirements state that a project must be completed within 180 working days, or it will incur penalties for late completion. Analysis of the activity network reveals an estimated project time of 145 working days with a project variance of 400. What is the probability that the project will be completed before the late-payment deadline?

Accepted Answer

A)  0.0401 
B)  0.4599 
C)  0.8056 
D)  0.9599 
E)  near 1.0000, or almost certain 
A)  0.0401 
B)  0.4599 
C)  0.8056 
D)  0.9599 
E)  near 1.0000, or almost certain

Question 7

Shortening the project's duration by deleting unnecessary activities is called "project crashing."

Accepted Answer

A) True 
 B)False

Question 8

__________ is an organization formed to ensure that programs (projects) receive the proper management and attention.

Accepted Answer

Project or

Question 9

Which of the following statements about Bechtel is true?

Accepted Answer

A)  Even though Bechtel is over 100 years old, the Kuwaiti oil fields was its first "project." 
B)  Bechtel is the world's premier manager of massive construction and engineering projects. 
C)  Bechtel's competitive advantage is supply-chain management. 
D)  While its projects are worldwide, its network of suppliers is largely in the U.S. 
E)  All of the above are true. 
A)  Even though Bechtel is over 100 years old, the Kuwaiti oil fields was its first "project." 
B)  Bechtel is the world's premier manager of massive construction and engineering projects. 
C)  Bechtel's competitive advantage is supply-chain management. 
D)  While its projects are worldwide, its network of suppliers is largely in the U.S. 
E)  All of the above are true.

Question 10

A partially solved PERT problem is detailed in the table below. Times are given in weeks.
 $\begin{array}{|c|c|c|c|c|c|l|}
\hline\text { Activity } & \text { Preceding } & \begin{array}{c}
\text { Optimistic } \
\text { Time }
\end{array} & \begin{array}{c}
\text { Probable } \
\text { Time }
\end{array} & \begin{array}{c}
\text { Pessimistic }\
\text { Time }
\end{array} & \begin{array}{c}
\text { Expected } \
\text { Time }
\end{array} & \text { Variance } \\hline \mathrm{A} & -- & 7 & 9 & 14 & & 1.361 \
\hline \mathrm{B} & \mathrm{A} & 2 & 2 & 8 & & 0 \
\hline \mathrm{C} & \mathrm{A} & 8 & 12 & 16 & & 0 \
\hline \mathrm{D} & \mathrm{A} & 3 & 5 & 10 & & 1.361 \\hline \mathrm{E} & \mathrm{B} & 4 & 6 & 8 & & 0 \
\hline \mathrm{F} & \mathrm{B} & 6 & 8 & 10 & & 0 \
\hline \mathrm{G} & \mathrm{C}, \mathrm{F} & 2 & 3 & 4 & & 0 \
\hline \mathrm{H} & \mathrm{D} & 2 & 2 & 8 & & 1.000 \
\hline \mathrm{I} & \mathrm{H} & 6 & 8 & 16 & & 2.778 \
\hline \mathrm{J} & \mathrm{G}, \mathrm{I} & 4 & 6 & 14 & & 2.778 \
\hline \mathrm{K} & \mathrm{E}, \mathrm{J} & 2 & 2 & 5 & & 0.250 \
\hline
\end{array}$ 
a. Calculate the expected time for each activity. Enter these values in the appropriate column in the table above.
b. Which activities form the critical path?
c. What is the estimated time of the critical path?
d. What are the project variance and the project standard deviation?
e. What is the probability of completion of the project after week 40?

Accepted Answer

(a) A=9.5 B=3 C=12 D=5.5 E=6 F

Question 11

What are the earliest activity start time and latest activity start time, and how are they computed?

Accepted Answer

The earliest start time is the earliest

Question 12

Which of the following statements regarding Gantt charts is true?

Accepted Answer

A)  Gantt charts give a timeline and precedence relationships for each activity of a project. 
B)  Gantt charts use the four standard spines of Methods, Materials, Manpower, and Machinery. 
C)  Gantt charts are visual devices that show the duration of activities in a project. 
D)  Gantt charts are expensive. 
E)  All of the above are true. 
A)  Gantt charts give a timeline and precedence relationships for each activity of a project. 
B)  Gantt charts use the four standard spines of Methods, Materials, Manpower, and Machinery. 
C)  Gantt charts are visual devices that show the duration of activities in a project. 
D)  Gantt charts are expensive. 
E)  All of the above are true.

Question 13

Analysis of a PERT problem shows the estimated time for the critical path to be 108 days with a variance of 64. There is a .90 probability that the project will be completed before approximately day __________.

Accepted Answer

A)  98 
B)  108 
C)  109 
D)  115 
E)  118 
A)  98 
B)  108 
C)  109 
D)  115 
E)  118

Question 14

What is a project organization?

Accepted Answer

A project organization is a fo

Question 15

Which of these statements regarding time-cost tradeoffs in CPM networks is true?

Accepted Answer

A)  Crashing is not possible unless there are multiple critical paths. 
B)  Crashing a project often reduces the length of long-duration, but noncritical, activities. 
C)  Activities not on the critical path can never be on the critical path, even after crashing. 
D)  Crashing shortens the project duration by assigning more resources to one or more of the critical tasks. 
E)  None of the above is true. 
A)  Crashing is not possible unless there are multiple critical paths. 
B)  Crashing a project often reduces the length of long-duration, but noncritical, activities. 
C)  Activities not on the critical path can never be on the critical path, even after crashing. 
D)  Crashing shortens the project duration by assigning more resources to one or more of the critical tasks. 
E)  None of the above is true.

Question 16

Identify, in order, the six steps basic to both PERT and CPM.

Accepted Answer

1. Define the project and prepare the WB

Question 17

Given the project within the table below calculate
a. The critical path
b. The minimum project duration
c. The amount of slack for each activity
 $$\begin{array} { | c | c | c | } 
\hline \text { Activity } & \begin{array} { c } 
\text { Duration } \
\text { (hours) }
\end{array} & \begin{array} { c } 
\text { Immediate } \
\text { Predecessors }
\end{array} \
\hline \mathrm{A} & 4 & \text { None } \
\hline \mathrm{B} & 3 & \text { None } \
\hline \mathrm{C} & 10 & \text { None } \
\hline \mathrm{D} & 7 & \mathrm{~B}, \mathrm{C} \
\hline \mathrm{E} & 1 & \mathrm{D} \
\hline \mathrm{F} & 1 & \mathrm{E} \
\hline \mathrm{G} & 5 & \mathrm{~A}, \mathrm{~F} \
\hline
\end{array}$$

Accepted Answer

@#IMG-DLM& 
(A) The critical path is CDEFG
(B) Min

Question 18

Consider the network described in the table below.
 $\begin{array} { | c | c | c | c | c | } 
\hline \text { Activity } & \begin{array} { c } 
\text { Immediate } \
\text { Predecessor(s) }
\end{array} & \text { Pessimistic } & \text { Probable } & \text { Optimistic } \
\hline \mathrm{J} & -- & 15 & 10 & 8 \
\hline \mathrm{K} & -- & 9 & 8 & 7 \
\hline \mathrm{L} & \mathrm{J} & 10 & 6 & 5 \
\hline \mathrm{M} & \mathrm{J} & 3 & 3 & 3 \
\hline \mathrm{N} & \mathrm{K}, \mathrm{M} & 9 & 5 & 1 \
\hline \mathrm{O} & \mathrm{K}, \mathrm{M} & 10 & 7 & 4 \
\hline \mathrm{P} & \mathrm{L}, \mathrm{N} & 10 & 8 & 3 \
\hline
\end{array}$ 
a. Calculate the expected duration of each activity.
b. Calculate the expected duration and variance of the critical path.
c. Calculate the probability that the project will be completed in fewer than 30 time units.

Accepted Answer

(a) See table below.
(b) Tasks J-M-N-P a

Question 19

The fundamental difference between PERT and CPM is that PERT uses the beta distribution for crashing projects while CPM uses cost estimates.

Accepted Answer

A) True 
 B)False

Question 20

A project being analyzed by PERT has 60 activities, 13 of which are on the critical path. If the estimated time along the critical path is 214 days with a project variance of 100, the probability that the project will take 224 days or more to complete is

Accepted Answer

A)  near zero 
B)  0.0126 
C)  0.1587 
D)  0.8413 
E)  2.14 
A)  near zero 
B)  0.0126 
C)  0.1587 
D)  0.8413 
E)  2.14

Exam 3: Project Management

If an activity whose normal duration is 15 days can be shortened to 10 days for an added cost of $2,000, the crash cost per period is

A project whose critical path has an estimated time of 120 days with a variance of 100 has a 20% chance that the project will be completed before day (rounded to nearest day).

An activity on a PERT network has these time estimates: optimistic = 2, most likely = 5, and pessimistic = 10. Its expected time is

The phases of project management are

Describe the differences between a Gantt chart and a PERT/CPM network.

Shortening the project's duration by deleting unnecessary activities is called "project crashing."

__________ is an organization formed to ensure that programs (projects) receive the proper management and attention.

Which of the following statements about Bechtel is true?

What are the earliest activity start time and latest activity start time, and how are they computed?

Which of the following statements regarding Gantt charts is true?

Analysis of a PERT problem shows the estimated time for the critical path to be 108 days with a variance of 64. There is a .90 probability that the project will be completed before approximately day __________.

What is a project organization?

Which of these statements regarding time-cost tradeoffs in CPM networks is true?

Identify, in order, the six steps basic to both PERT and CPM.

Given the project within the table below calculate a. The critical path b. The minimum project duration c. The amount of slack for each activity Activity Duration (hours) Immediate Predecessors 4 None 3 None 10 None 7 , 1 1 5 ,

The fundamental difference between PERT and CPM is that PERT uses the beta distribution for crashing projects while CPM uses cost estimates.

A project being analyzed by PERT has 60 activities, 13 of which are on the critical path. If the estimated time along the critical path is 214 days with a project variance of 100, the probability that the project will take 224 days or more to complete is

Operations and Productivity

Operations Strategy in a Global Environment

Forecasting

Design of Goods and Services

Managing Quality

Statistical Process Control

Process Strategy

Capacity and Constraint Management

Location Strategies

Layout Strategies

Human Resources, Job Design, and Work Measurement

Supply-Chain Management

Outsourcing as a Supply-Chain Strategy

Inventory Management

Aggregate Planning

Material Requirements Planning MRP and ERP

Short-Term Scheduling

Just-In-Time and Lean Options

Maintenance and Reliability

Decision-Making Tools

Linear Programming

Transportation Models

Waiting-Line Models

Learning Curves

Simulation

Filters