# Saint GBA334/ GB334 Final exam 2015 (Latest) - 94291

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Question 1.1.Slack time in a network is the: (Points : 2)

amount of time that an activity would take assuming very unfavorable conditions.
shortest amount of time that could be required to complete the activity.

amount of time that you would expect it would take to complete the activity.

difference between the expected completion time of the project using pessimistic times and the expected completion time of the project using optimistic times.

amount of time that an activity can be delayed without delaying the entire project

Question 2.2.Given an activity's optimistic, most likely, and pessimistic time estimates of 4, 12, and 18 days respectively, what is the PERT variance for this activity? (Points : 2)

2.33

5.44

8.00

64.00

None of the above

Question 3.3.The expected time in PERT is: (Points : 2)

a weighted average of the most optimistic time, most pessimistic time, and four times the most likely time

the modal time of a beta distribution

a simple average of the most optimistic, most likely, and most pessimistic times

the square root of the sum of the variances of the activities on the critical path

none of the above

Question 4.4.The shortest-route technique might be used by someone planning a vacation in order to minimize the required amount of driving. (Points : 2)

True

False

Question 5.5.Practically speaking, multiple optimal solutions ________  (Points : 2)

are infeasible

are unbounded

are degenerate

are unbalanced

provide management with greater flexibility in selecting and using resources

Question 6.6. An airline company tracks the number of lost bags that occur each day. This is best monitored by which of the following control charts? (Points : 2)

x-bar chart

R-chart

p-chart

c-chart

None of the above

Question 7.7.Which tableau is the solution to the transportation problem depicted below? Click here to view a Word version of the table (Points : 2)

None of the above

Question 8.8.Consider the following linear programming problem.

Maximize 5X1+ 3X2
Subject to:
X1+ X2? 20
X1? 5
X2? 10
X1, X2? 0

Using Excel QM, what are the optimal values of X1and X2respectively? (Points : 2)

5;10

10;5

0;20

20;0

Question 9.9. In queuing theory, the calling population is another name for __________. (Points : 2)

the queue size

the servers

the arrivals

the service rate

the market researchers

Question 10.10.Which of the following functions is not linear? (Points : 2)

5X + 3Z

3X + 4Y + Z – 3

2X + 5YZ

Z

2X - 5Y + 2Z

Question 11.11.Consider th

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