Question 1

A disadvantage of Gantt chart methodology is that an earliest possible completion date for the project cannot be determined.

Accepted Answer

A) True 
 B)False

Question 2

PERT/Cost:

Accepted Answer

A) allows for activity interruption. 
B) assumes costs are evenly spread over time. 
C) monitors project performance relation to cost, not time. 
D) cannot help identify cost under-runs. 
A) allows for activity interruption. 
B) assumes costs are evenly spread over time. 
C) monitors project performance relation to cost, not time. 
D) cannot help identify cost under-runs.

Question 3

The "forward pass" determines the earliest start and finish times for activities in a project.The "backward pass" establishes latest start and finish times.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is false?

Accepted Answer

A) Crashing an activity on the critical path can cause another path to become the critical path. 
B) The maximum crash time reduction for each and every activity is limited. 
C) CPM assumes that adding resources to crash an activity from its normal time to its crash time will reach a point of diminishing returns. 
D) Crashing non-critical activities will not reduce the project time. 
A) Crashing an activity on the critical path can cause another path to become the critical path. 
B) The maximum crash time reduction for each and every activity is limited. 
C) CPM assumes that adding resources to crash an activity from its normal time to its crash time will reach a point of diminishing returns. 
D) Crashing non-critical activities will not reduce the project time.

Question 5

Resource leveling can apply to either costs or to the time of people working on the project.

Accepted Answer

A) True 
 B)False

Question 6

PERT/Cost is a cost-center based system, where the "centers" are:

Accepted Answer

A) locations. 
B) work packages of groups of related activities. 
C) activities. 
D) departments. 
A) locations. 
B) work packages of groups of related activities. 
C) activities. 
D) departments.

Question 7

For a CPM model, you are given the following data with time in weeks.$\begin{array}{cccccc}
\text { Activity } & \begin{array}{c}
\text { Immediate } \
\text { Predecessors }
\end{array} & \begin{array}{c}
\text { Normal } \
\text { Time }
\end{array} & \text { Normal Cost } & \begin{array}{c}
\text { Crash } \
\text { Time }
\end{array} & \text { Crash Cost } \
\text { A } & -- & 9 & 3200 & 5 & 6000 \
\text { B } & -- & 7 & 1400 & 5 & 2400 \
\text { C } & \text { A } & 6 & 1500 & 5 & 2000 \
\text { D } & \text { B } & 5 & 2500 & 3 & 4000 \
\text { E } & \text { A, B } & 4 & 1800 & 3 & 2800 \
\text { F } & \text { D, E } & 3 & 1800 & 1 & 4800
\end{array}$
 A.If activity A needed to be completed in 6 weeks, what would its cost be?
B.If $3000 were allocated to activity D, how long would it take to complete?

Accepted Answer

A.
($5300)

Question 8

The critical path is always unique.

Accepted Answer

A) True 
 B)False

Question 9

A project contains activities D and K.Activity D has 5 hours of slack, and activity K has 7 hours of slack.If activity D is delayed 4 hours, activity K is delayed 6 hours, and these are the only delays, then the overall effect of these delays is to delay the minimum project completion time by:

Accepted Answer

A) 0 hours. 
B) 2 hours. 
C) 11 hours. 
D) The overall delay cannot be determined with only this information. 
A) 0 hours. 
B) 2 hours. 
C) 11 hours. 
D) The overall delay cannot be determined with only this information.

Question 10

Suppose the estimated completion times for activities A through G in problem 1 were 5, 4, 3, 6, 2, 5, 2 respectively.Draw an earliest completion Gantt chart for the data.

Accepted Answer

The answer of Suppose the estimated completion times for activities...

Question 11

Which of the following is true?

Accepted Answer

A) Slack = (LF - LS) 
B) (LF - LS) > (EF - ES) 
C) Slack is never "shared." 
D) (LS - ES) $\ge$ 0 
A) Slack = (LF - LS) 
B) (LF - LS) > (EF - ES) 
C) Slack is never "shared." 
D) (LS - ES) $\ge$ 0

Question 12

The probabilistic approach characterized by PERT does not use:

Accepted Answer

A) optimistic activity times. 
B) median activity times. 
C) pessimistic activity times. 
D) most likely activity times. 
A) optimistic activity times. 
B) median activity times. 
C) pessimistic activity times. 
D) most likely activity times.

Question 13

The critical path shows the earliest project completion date by finding the shortest path through the directed network.

Accepted Answer

A) True 
 B)False

Question 14

Let Ti = normal completion time for task iRi = crash completion time for task i Ci = normal cost for task i
Hi = crash cost for task i
Xi = start time for task i
Yi = amount of time by which task i is to be crashed.
What is the objective function of a linear programming model for project crashing?

Accepted Answer

A) $\Sigma$all i Yi(Hi - Ci)/(Ti - Ri) 
B) $\Sigma$all i on critical path Yi(Hi - Ci)/(Ti - Ri) 
C) $\Sigma$all i XiYi 
D) $\Sigma$all i YiHi 
A) $\Sigma$all i Yi(Hi - Ci)/(Ti - Ri) 
B) $\Sigma$all i on critical path Yi(Hi - Ci)/(Ti - Ri) 
C) $\Sigma$all i XiYi 
D) $\Sigma$all i YiHi

Question 15

A Gantt chart, by definition, does not show precedence relations.However, you could add precedence relations by drawing arrows on the Gantt chart.

Accepted Answer

A) True 
 B)False

Question 16

Ajax is about to embark on a project involving the design, manufacture, and introduction of a new microwave oven.The first three activities and the immediate predecessors are:$\begin{array}{lcc}
&\text { Activity } &\text { Predecessor }\
\text { A } & \text { Prototype Design } & \text { none } \
\text { B } & \text { Acquisition of Materials } & \text { A } \
\text { C } & \text { Prototype Construction } & \text { B }
\end{array}$
 However, it has not yet been decided whether the prototype materials will be purchased from a vendor (taking two weeks) or produced in another Ajax division (four weeks).What are the implications of this regarding usage of any standard project scheduling technique?

Accepted Answer

(PERT/CPM cannot accommodate "either/or

Question 17

What type of distribution does PERT assume for the activity completion times?

Accepted Answer

The answer of What type of distribution does PERT assume...

Question 18

Which statement does not represent a set of constraints for a linear programming approach to project crashing?

Accepted Answer

A) There is a limit to the time reduction for each activity. 
B) No activity can be reduced more than its slack time. 
C) Activity start time must be greater than the finish time of all immediate predecessors. 
D) The project must be completed by the deadline (or within budget). 
A) There is a limit to the time reduction for each activity. 
B) No activity can be reduced more than its slack time. 
C) Activity start time must be greater than the finish time of all immediate predecessors. 
D) The project must be completed by the deadline (or within budget).

Question 19

A PERT/CPM network can be represented as a linear programming model by letting the decision variables be the activity start times.

Accepted Answer

A) True 
 B)False

Question 20

Activity T has a single immediate predecessor, activity S.However, T may actually be initiated anytime after S is 50% complete.Can this situation be accommodated using standard project scheduling techniques? Explain.

Accepted Answer

(Yes, this situation may be handled.Mere

A disadvantage of Gantt chart methodology is that an earliest possible completion date for the project cannot be determined.

PERT/Cost:

The "forward pass" determines the earliest start and finish times for activities in a project.The "backward pass" establishes latest start and finish times.

Which of the following is false?

Resource leveling can apply to either costs or to the time of people working on the project.

PERT/Cost is a cost-center based system, where the "centers" are:

The critical path is always unique.

A project contains activities D and K.Activity D has 5 hours of slack, and activity K has 7 hours of slack.If activity D is delayed 4 hours, activity K is delayed 6 hours, and these are the only delays, then the overall effect of these delays is to delay the minimum project completion time by:

Suppose the estimated completion times for activities A through G in problem 1 were 5, 4, 3, 6, 2, 5, 2 respectively.Draw an earliest completion Gantt chart for the data.

Which of the following is true?

The probabilistic approach characterized by PERT does not use:

The critical path shows the earliest project completion date by finding the shortest path through the directed network.

A Gantt chart, by definition, does not show precedence relations.However, you could add precedence relations by drawing arrows on the Gantt chart.

What type of distribution does PERT assume for the activity completion times?

Which statement does not represent a set of constraints for a linear programming approach to project crashing?

A PERT/CPM network can be represented as a linear programming model by letting the decision variables be the activity start times.

Activity T has a single immediate predecessor, activity S.However, T may actually be initiated anytime after S is 50% complete.Can this situation be accommodated using standard project scheduling techniques? Explain.

Introduction to Management Science Models

Introduction to Management Science Models

Applications of Linear and Integer Programming Models

Network Models

Decision Models

Forecasting

Inventory Models

Queuing Models

Simulation Models

Quality Management Models

Markov Process Models

Nonlinear Models:dynamic, Goal, and Nonlinear Programming

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Exam 5: Project Scheduling Models

A disadvantage of Gantt chart methodology is that an earliest possible completion date for the project cannot be determined.

PERT/Cost:

The "forward pass" determines the earliest start and finish times for activities in a project.The "backward pass" establishes latest start and finish times.

Which of the following is false?

Resource leveling can apply to either costs or to the time of people working on the project.

PERT/Cost is a cost-center based system, where the "centers" are:

The critical path is always unique.

A project contains activities D and K.Activity D has 5 hours of slack, and activity K has 7 hours of slack.If activity D is delayed 4 hours, activity K is delayed 6 hours, and these are the only delays, then the overall effect of these delays is to delay the minimum project completion time by:

Suppose the estimated completion times for activities A through G in problem 1 were 5, 4, 3, 6, 2, 5, 2 respectively.Draw an earliest completion Gantt chart for the data.

Which of the following is true?

The probabilistic approach characterized by PERT does not use:

The critical path shows the earliest project completion date by finding the shortest path through the directed network.

Let Ti = normal completion time for task iRi = crash completion time for task i Ci = normal cost for task i Hi = crash cost for task i Xi = start time for task i Yi = amount of time by which task i is to be crashed. What is the objective function of a linear programming model for project crashing?

A Gantt chart, by definition, does not show precedence relations.However, you could add precedence relations by drawing arrows on the Gantt chart.

What type of distribution does PERT assume for the activity completion times?

Which statement does not represent a set of constraints for a linear programming approach to project crashing?

A PERT/CPM network can be represented as a linear programming model by letting the decision variables be the activity start times.

Activity T has a single immediate predecessor, activity S.However, T may actually be initiated anytime after S is 50% complete.Can this situation be accommodated using standard project scheduling techniques? Explain.

Introduction to Management Science Models

Introduction to Management Science Models

Applications of Linear and Integer Programming Models

Network Models

Decision Models

Forecasting

Inventory Models

Queuing Models

Simulation Models

Quality Management Models

Markov Process Models

Nonlinear Models:dynamic, Goal, and Nonlinear Programming

Filters