Question 1 1.   With CPM, we are able to calculate the probability of finishing the project within a specified time. Answer True False 2 points   Question 2 1.   In CPM, crashing an activity that is not on the critical path increases the cost of the project. Answer True False 2 points   Question 3 1.   Gantt charts and PERT diagrams provide the same information, just in different formats. Answer True False 2 points   Question 4 1.   One PERT/COST assumption is that money is spent at a constant rate over the time taken to complete an activity. Answer True False 2 points   Question 5 1.   Your company is considering submitting a bid on a major project. You determine that the expected completion time is 100 weeks and the standard deviation is 10 weeks. It is assumed that the normal distribution applies. You wish to set the due date for the project such that there is an 85 percent chance that the project will be finished by this time. What due date should be set? Answer 108.0 110.4 89.6 85.0 100 2 points   Question 6 1.   Given an activity's optimistic, most likely, and pessimistic time estimates of 3, 5, and 13 days respectively, compute the expected time for this activity. Answer 3 4 5 6 None of these 2 points   Question 7 1.   The optimistic time is the greatest amount of time that could be required to complete an activity. Answer True False 2 points   Question 8 1.   Which of the following is not a decision variable when formulating the project crashing problem as a linear program? Answer the early finish times of critical activities the early finish times of non critical activities the start time of the project the finish time of the project the early start times of all activities 2 points   Question 9 1.   Table 12-1 The following represents a project with know activity times. All times are in weeks. Using the data in Table 12-1, what is the latest possible time that C may be started without delaying completion of the project? Answer 0 4 8 10 None of these 2 points   Question 10 1.   PERT stands for Probabilistic Evaluation and Review Technique. Answer True False 2 points   Question 11 1.   Table 12-2 The following represents a project with four activities. All times are in weeks. According to Table 12-2, there are four activities in the project. Assume the normal distribution is appropriate to use to determine the probability of finishing by a particular time. What is the probability that the project is finished in 16 weeks or fewer? (Round to two decimals.) Answer 0.07 0.93 0.43 0.77 None of these 2 points   Question 12 1.   Table 12-5 How long could Table 12-5's activity E be delayed without delaying the completion of the project? Answer 7 16 11 18 None of these 2 points   Question 13 1.   PERT stands for ________. Answer probabilistic evaluation and review technique program evaluation and review technique ...

1. Question 1
1.
With CPM, we are able to calculate the probability of finishing
the project within a specified time.
Answer
True
False
2 points
Question 2
1.
In CPM, crashing an activity that is not on the critical path
increases the cost of the project.
Answer
True
False
2 points
Question 3
1.
Gantt charts and PERT diagrams provide the same information,
just in different formats.
Answer
True
False
2 points
Question 4
1.
One PERT/COST assumption is that money is spent at a
constant rate over the time taken to complete an activity.
Answer
True
False
2 points
Question 5
1.

2. Your company is considering submitting a bid on a major
project. You determine that the expected completion time is 100
weeks and the standard deviation is 10 weeks. It is assumed that
the normal distribution applies. You wish to set the due date for
the project such that there is an 85 percent chance that the
project will be finished by this time. What due date should be
set?
Answer
108.0
110.4
89.6
85.0
100
2 points
Question 6
1.
Given an activity's optimistic, most likely, and pessimistic time
estimates of 3, 5, and 13 days respectively, compute the
expected time for this activity.
Answer
3
4

3. 5
6
None of these
2 points
Question 7
1.
The optimistic time is the greatest amount of time that could be
required to complete an activity.
Answer
True
False
2 points
Question 8
1.
Which of the following is not a decision variable when
formulating the project crashing problem as a linear program?
Answer
the early finish times of critical activities
the early finish times of non critical activities
the start time of the project
the finish time of the project

4. the early start times of all activities
2 points
Question 9
1.
Table 12-1
The following represents a project with know activity times. All
times are in weeks.
Using the data in Table 12-1, what is the latest possible time
that C may be started without delaying completion of the
project?
Answer
0
4
8
10
None of these
2 points
Question 10
1.
PERT stands for Probabilistic Evaluation and Review
Technique.
Answer

5. True
False
2 points
Question 11
1.
Table 12-2
The following represents a project with four activities. All
times are in weeks.
According to Table 12-2, there are four activities in the project.
Assume the normal distribution is appropriate to use to
determine the probability of finishing by a particular time. What
is the probability that the project is finished in 16 weeks or
fewer? (Round to two decimals.)
Answer
0.07
0.93
0.43
0.77
None of these
2 points
Question 12
1.
Table 12-5

6. How long could Table 12-5's activity E be delayed without
delaying the completion of the project?
Answer
7
16
11
18
None of these
2 points
Question 13
1.
PERT stands for ________.
Answer
probabilistic evaluation and review technique
program evaluation and review technique
probability of expected run times

7. program of expected run times
project evaluation and review technique
2 points
Question 14
1.
PERT
Answer
assumes that we do not know ahead of time what activities must
be completed.
assumes that activity time estimates follow the normal
probability distribution.
is a network technique that uses three time estimates for each
activity in a project.
is a deterministic network technique that allows for project
crashing.
None of these
2 points
Question 15
1.
Table 12-5

8. How long could Table 12-5's activity F be delayed without
delaying the project?
Answer
2
3
14
16
None of these
2 points
Question 16
1.
The expected time in PERT is
Answer
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.

9. the square root of the sum of the variances of the activities on
the critical path.
None of these
2 points
Question 17
1.
The variance of the project completion time is equal to the sum
of the variances of all the activities.
Answer
True
False
2 points
Question 18
1.
Consider the following linear programming problem:
The feasible corner points are (48,84), (0,120), (0,0), (90,0).
What is the maximum possible value for the objective function?
Answer
1032
1200
360
1600

10. None of these
2 points
Question 19
1.
One of the assumptions of LP is "proportionality."
Answer
True
False
2 points
Question 20
1.
Two models of a product Regular (X) and Deluxe (Y) are
produced by a company. A linear programming model is used to
determine the production schedule. The formulation is as
follows:
The optimal solution is X=100, Y=0.
Which of these constraints is redundant?
Answer
the first constraint
the second constraint
the third constraint
All of these

11. None of these
2 points
Question 21
1.
In a maximization problem, when one or more of the solution
variables and the profit can be made infinitely large without
violating any constraints, the linear program has
Answer
an infeasible solution.
an unbounded solution.
a redundant constraint.
alternate optimal solutions.
None of these
2 points
Question 22
1.
A constraint with positive slack or surplus is called a
Answer
nonbinding constraint.
resource constraint.

12. binding constraint.
nonlinear constraint.
linear constraint.
2 points
Question 23
1.
Which of the following is not acceptable as a constraint in a
linear programming problem (maximization)?
Answer
Constraint 1
Constraint 2
Constraint 3
Constraint 4
None of these
2 points
Question 24
1.
The rationality assumption implies that solutions need not be in
whole numbers (integers).

13. Answer
True
False
2 points
Question 25
1.
A constraint with zero slack or surplus is called a
Answer
nonbinding constraint.
resource constraint.
binding constraint.
nonlinear constraint.
linear constraint.
2 points
Question 26
1.
Management resources that need control include machinery
usage, labor volume, money spent, time used, warehouse space
used, and material usage.
Answer
True
False
2 points
Question 27
1.
Which of the following is not one of the steps in formulating a

14. linear program?
Answer
Graph the constraints to determine the feasible region.
Define the decision variables.
Use the decision variables to write mathematical expressions for
the objective function and the constraints.
Identify the objective and the constraints.
Completely understand the managerial problem being faced.
2 points
Question 28
1.
Which of the following is a basic assumption of linear
programming?
Answer
The condition of uncertainty exists.
Independence exists for the activities.
Proportionality exists in the objective function and constraints.
Divisibility does not exist, allowing only integer solutions.

15. Solution
s or variables may take values from -∞ to +∞.
2 points
Question 29
1.
A widely used mathematical programming technique designed to
help managers and decision making relative to resource
allocation is called ________.
Answer
linear programming
computer programming
constraint programming

16. goal programming
None of these
2 points
Question 30
1.
Which of the following is not acceptable as a constraint in a
linear programming problem (minimization)?
Answer
Constraint 1
Constraint 2
Constraint 3
Constraint 4

17. Constraint 5
2 points
Question 31
1.
Which of the following is not a part of every linear
programming problem formulation?
Answer
an objective function
a set of constraints
non-negativity constraints
a redundant constraint
maximization or minimization of a linear function
2 points
Question 32

18. 1.
When a constraint line bounding a feasible region has the same
slope as an isoprofit line,
Answer
there may be more than one optimum solution.
the problem involves redundancy.
an error has been made in the problem formulation.
a condition of infeasibility exists.
None of these
2 points
Question 33
1.
A feasible solution to a linear programming problem
Answer

19. must be a corner point of the feasible region.
must satisfy all of the problem's constraints simultaneously.
need not satisfy all of the constraints, only the non-negativity
constraints.
must give the maximum possible profit.
must give the minimum possible cost.
2 points
Question 34
1.
Which of the following control charts is/are for attributes?
Answer
p-chart

20. x-bar chart
R-chart
p-chart and x-bar chart
p-chart, x-bar chart, and R-chart
2 points
Question 35
1.
Table 16-1
Refer to Table 16-1. To guarantee that cans of soda are properly
filled, some cans are sampled and the amounts measured. The
overall average for the samples is 12 ounces. Each sample
contains 10 cans. The average range is 0.4 ounces. The lower
control chart limit for the sample averages would be
Answer
12.1232.

21. 11.8768.
13.2.
12.308.
None of these
2 points
Question 36
1.
A coffee dispenser is supposed to dispense coffee into an 8 o.z.
cup. The average amount of coffee filled into the cup must be
below 7.9. This is best monitored by which of the following
control charts?
Answer
x-bar chart

22. R-chart
p-chart
c-chart
None of these
2 points
Question 37
1.
A company believes a process monitored by an x-bar chart to be
in control. When the most recent control point exceeded the
UCL value by 20%, the company should
Answer
believe that a random bad luck chance occurred and proceed.
suspect that an assignable cause of variation now exists and can
be found.

23. ignore the control point completely, as it is simply an outlier.
wait for the next four samples to be taken to see if a trend
develops.
All of these
2 points
Question 38
1.
A company has been receiving complaints about the attitude of
some sales clerks. Over a 10-day period, the total number of
complaints was 250. The company wishes to develop a control
chart for the number of complaints. What would the upper
control limit on the number of complaints per day be for a 2
sigma (95.5%) control chart?
Answer
35
40

24. 50
200
None of these
2 points
Question 39
1.
R-charts measure changes in
Answer
central tendency.
degree of variation.
number of defects per production lot.

25. natural variations.
None of these
2 points
Question 40
1.
The U.S. government awards for quality achievement are called
the Malcolm Baldrige National Quality Awards.
Answer
True
False
2 points
Question 41
1.
The p-chart would be useful when we
Answer
took a number of measurements and computed the average.
took a number of measurements and computed the ranges.

26. found the fraction of the production lot defective.
found the number of defective items in a production lot.
None of these
2 points
Question 42
1.
-charts indicate changes in
Answer
variation.
central tendency.
natural variations.
numbers of defects.

27. None of these
2 points
Question 43
1.
Variations that usually occur in a process are called
Answer
process variations.
natural variations.
control variations.
assignable variations.
None of these
2 points
Question 44

28. 1.
Table 16-1
Refer to Table 16-1. The Pristine Paint Company produces paint
in gallon cans. They have found that in more than 10 samples of
8 cans each, the average gallon can contains 1.1 gallons of
paint. The average range found over these samples is 0.15
gallons. What is the upper control limit for the sample averages
in this process?
Answer
1.100
1.150
1.268
1.156

29. None of these
2 points
Question 45
1.
A c-chart would be appropriate to monitor the number of weld
defects on the steel plates of a ship's hull.
Answer
True
False
2 points
Question 46
1.
Defects in computer hard-drives will usually render the entire
computer worthless. For a particular model, the percent
defective in the past has been 1%. If a sample size of 400 is
taken, what would the 95.5% lower control chart limit be?
Answer
0.00995
0.00005

30. 0.00000
0.01000
0.09550
2 points
Question 47
1.
Technically, to achieve Six Sigma quality, there would have to
be fewer than ________ defects per million opportunities.
Answer
6
166,667
667
67

31. 3.4
2 points
Question 48
1.
A quality control program is being developed for batteries. The
percent defective for these in the past has been 3%. If a sample
size of 120 is taken, what would the 99.7% upper control chart
limit be?
Answer
0.0812
0.0767
0.0611
0.0307

32. 0.0471
2 points
Question 49
1.
The R-chart would be useful when we
Answer
took a number of measurements and computed the average.
took a number of measurements and computed the ranges.
found the fraction of the production lot defective.
found the number of defective items in a production lot.
None of these
2 points
Question 50
1.
Table 16-1

33. Refer to Table 16-1. Bags of tea are sampled to ensure proper
weight. The overall average for the samples is 8 ounces. Each
sample contains 10 bags. The average range is 0.1 ounces. What
is the lower limit of the sample averages chart?
Answer
7.9692
8.0308
7.9076
8.0924
None of these
2 points
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