Operations Management
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Course Introduction
Operations Management focuses on the efficient and effective processes involved in producing goods and delivering services. The course explores key concepts such as process analysis, quality management, supply chain coordination, inventory control, project management, and capacity planning. Students will learn how to optimize organizational resources and workflows to enhance productivity and competitiveness, analyze real-world operational challenges, and implement strategies for continuous improvement across various industries. Through case studies and practical applications, participants will gain the skills necessary to make informed decisions that drive operational excellence.
Recommended Textbook
Introduction to Management Science A Modeling and Case Studies 5th Edition by Hillier
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20 Chapters
1064 Verified Questions
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Chapter 1: Introduction
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Sample Questions
Q1) Which of the following is a constant in a mathematical model?
A)Decision variable
B)Parameter
C)Objective function
D)Constraint
E)None of the above
Answer: B
Q2) A decision variable is an algebraic variable that represents a quantifiable decision to be made
A)True
B)False
Answer: True
Q3) Which of the following is an inequality or equation that expresses a restriction in a mathematical model?
A)Decision variable
B)Parameter
C)Objective function
D)Constraint
E)None of the above
Answer: D
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Chapter 2: Linear programming: Basic Concepts
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Sample Questions
Q1) Since all linear programming models must contain nonnegativity constraints,Solver will automatically include them and it is not necessary to add them to a formulation
A)True
B)False
Answer: False
Q2) What is the daily profit when producing the optimal amounts?
A)$800
B)$500
C)$640
D)$620
E)$600
Answer: C
Q3) The value of the objective function decreases as the objective function line is moved away from the origin
A)True
B)False
Answer: False
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Page 4
Chapter 3: Linear programming: Formulation and applications
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Sample Questions
Q1) It is the nature of the restrictions imposed on the decisions regarding the mix of activity levels that determines the classification of the resulting linear programming formulation
A)True
B)False
Answer: True
Q2) When formulating a linear programming model on a spreadsheet,the decisions to be made are located in the data cells
A)True
B)False
Answer: False
Q3) Cost-benefit-tradeoff problems are linear programming problems involving the allocation of limited resources to activities
A)True
B)False
Answer: False
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Page 5
Chapter 4: Theart of modeling with spread sheets
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Sample Questions
Q1) Numbers should be included directly in formulas rather than entered separately in data cells in order to keep the spreadsheet model concise
A)True
B)False
Q2) If two managers are given the same business problem to analyze with a spreadsheet,their spreadsheet models will likely be almost identical
A)True
B)False
Q3) It is better to use power functions in Excel to complete a calculation in a single cell than to spread out a calculation over many cells using simpler formulas
A)True
B)False
Q4) Data should be repeated within every output cell as needed A)True
B)False
Q5) Once the data is entered,it should never be moved A)True B)False
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Chapter 5: What-If Analysis for linear programming
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Sample Questions
Q1) If the right-hand side of Resource B changes to 80,then the objective function value:
A)will decrease by $75
B)will decrease by $150
C)will decrease by $225
D)will remain the same
E)can only be discovered by resolving the problem
Q2) The term "allowable range for the right-hand-side" refers to coefficients of the objective function
A)True
B)False
Q3) What is the allowable range of the right-hand-side for Resource A?
A)- RHS<sub>A</sub> 60
B)0 RHS<sub>A</sub> 110
C)- RHS<sub>A</sub> 110
D)110 RHS<sub>A</sub> 1600
E)0 RHS<sub>A</sub> 160
Q4) It is usually quite easy to find the needed data for a linear programming study
A)True B)False
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Chapter 6: Network optimization problems
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Sample Questions
Q1) Maximum flow problems are concerned with maximizing the flow of goods through a distribution network
A)True
B)False
Q2) When reformulating a shortest path problem as a minimum cost flow problem,each link should be replaced by a pair of arcs pointing in opposite directions
A)True
B)False
Q3) What is the objective of a maximum flow problem?
A)Maximize the amount flowing through a network
B)Maximize the profit of the network
C)Maximize the routes being used
D)Maximize the amount produced at the origin
E)None of the above
Q4) The objective of a maximum flow problem is to maximize the total profit generated by sending flow through a network
A)True
B)False
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Chapter 7: Using binary integer programming to deal withy
es-Or-No decisions
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Sample Questions
Q1) It is possible to have a constraint in a BIP that excludes the possibility of choosing none of the alternatives available
A)True
B)False
Q2) The Excel sensitivity report can be used to perform sensitivity analysis for integer programming problems
A)True
B)False
Q3) A linear programming formulation is not valid for a product mix problem when there are setup costs for initiating production
A)True
B)False
Q4) The constraint x<sub>1</sub> + x<sub>2</sub> + x<sub>3</sub>? 3 in a BIP represents mutually exclusive alternatives
A)True
B)False
Q5) Variables whose only possible values are 0 and 1 are called integer variables
A)True
B)False
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Chapter 8: Non linear programming
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Sample Questions
Q1) Sometimes Evolutionary Solver will make a random change in a member of the population
A)True
B)False
Q2) The Nonlinear Solver keeps track of a large set of candidate solutions,called the population
A)True
B)False
Q3) The multistart feature in Solver can be used for nonlinear programming problems to systematically try a number of different starting points
A)True
B)False
Q4) If the data cells are in column D and the changing cells are in column C,which of the following are not linear formulas in a spreadsheet?
A)IF(D1 >= 6,C1,C2)
B)ROUND(C3)
C)ABS(C3)
D)All of the above
E)b and c only
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Chapter 9: Decision Analysis
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Sample Questions
Q1) Most people occupy a middle ground and are classified as risk neutral
A)True
B)False
Q2) What is the expected value of perfect information?
A)40
B)45
C)75
D)85
E)100
Q3) The maximin criterion is an optimistic criterion
A)True
B)False
Q4) The expected value of perfect information is:
A)4 5
B)9
C)40 5
D)49 5
E)60
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Chapter 10: Forecasting
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Sample Questions
Q1) The seasonal factor for any period of a year measures how that period compares to the same period last year
A)True B)False
Q2) Removing the seasonal component from a time-series can be accomplished by dividing each value by its appropriate seasonal factor
A)True B)False
Q3) Forecasts are rarely perfect
A)True B)False
Q4) Statistical models to forecast economic trends are called econometric models
A)True B)False
Q5) The mean square error is the square of the mean of the absolute deviations A)True B)False
Q6) The last-value forecasting method requires a linear trend line A)True B)False
Page 12
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Chapter 11: Queuing models
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Sample Questions
Q1) If clerk cost is $30 per hour and customer waiting time represents a cost of $20 per hour,how many clerks can be justified on a cost basis?
A)2
B)3
C)4
D)5
E)6
Q2) The goal of queuing analysis is to minimize customer waiting lines
A)True
B)False
Q3) What is the minimum number of clerks needed to keep the average time in the system under 5 minutes?
A)2 B)3 C)4
D)5
E)6
Q4) The cost of customer waiting is easy to estimate A)True B)False
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Chapter 12: Computer simulation: Basic Concepts
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Sample Questions
Q1) Which of the following is not a reason for simulation's popularity?
A)It is simple to use and/or understand
B)Extensive software packages are available
C)Many situations are too complex for mathematical solutions
D)If can be used for a wide range of applications
E)It is typically an inexpensive approach
Q2) When using a random number table,it is important to always start at the same point of the table so that results may be replicated
A)True
B)False
Q3) Which of the following would not be a probable reason for choosing simulation as a decision-making tool?
A)The situation is too complex for a mathematical model
B)The is a limited time in which to obtain results
C)Good results have been obtained in the past using simulation
D)Users are able to understand the model
E)All of these are probable reasons for choosing simulation
Q4) Random observations can be generated in Excel by using the VLOOKUP function
A)True
B)False
Page 14
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Chapter 13: Computer simulation with risks olver platform
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Sample Questions
Q1) The standard error gives an indication of the accuracy of the estimated mean
A)True
B)False
Q2) RSPE can be used to fit a discrete distribution to data
A)True
B)False
Q3) The more trials that are run,the lower the standard error will become A)True
B)False
Q4) RSPE can not handle constraints in a simulation model
A)True
B)False
Q5) The number of trials is one of the options to be set in RSPE
A)True
B)False
Q6) The binomial distribution describes the number of times an event occurs in a fixed number of trials
A)True
B)False
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Chapter 14: Solution concepts for linear programming
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Sample Questions
Q1) In a linear programming problem,there is always at least one optimal corner point
A)True
B)False
Q2) The simplex method includes which of the following components?
A)An initialization step
B)An optimality test
C)A trial step
D)All of the above
E)a and b only
Q3) If the feasible region in a linear programming problem is unbounded,then the problem is unbounded
A)True
B)False
Q4) Two corner points are adjacent to each other if they share all but one of the same constraint boundaries
A)True
B)False
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Chapter 15: Transportation and assignment problems
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Q1) The transportation model assumes that shipping costs are dependent on the distance that goods are shipped
A)True
B)False
Q2) Transportation problems are concerned with distributing commodities from sources to destinations in such a way as to minimize the total distribution cost
A)True
B)False
Q3) Transportation problems must satisfy which of the following assumptions?
A)The supply assumption
B)The cost assumption
C)The integer assumption
D)All of the above
E)None of the above
Q4) When the number of people and the number of tasks are not equal in an assignment problem then the problem cannot be solved
A)True
B)False
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Chapter 16: Pert CPM models for project management
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Sample Questions
Q1) PERT/CPM can answer which of the following questions?
A)When do activities need to start and finish to meet a deadline?
B)How much delay can be tolerated for certain activities?
C)Given uncertainties,what is the probability that a project will finish on time?
D)What is the least expensive way to expedite a project to meet a deadline?
E)All of the above
Q2) PERT/Cost:
A)finds the penalty costs if a project is not completed on time
B)compares the actual budget with the planned budget
C)shows management where to focus attention during the project
D)a and b only
E)b and c only
Q3) The activities with the longest durations in a project network are called critical activities
A)True
B)False
Q4) The path in a project network with the average duration is the critical path
A)True
B)False
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Chapter 17: Goal programming
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Sample Questions
Q1) In weighted goal programming,the objective cell is the weighted sum of the deviations from the goals
A)True
B)False
Q2) Which of the following are changing cells in a goal programming formulation?
A)Activity levels
B)Deviations from the goals
C)The weighted sum of deviations
D)All of the above
E)a and b only
Q3) Preemptive goal programming strives to achieve all of the goals simultaneously A)True
B)False
Q4) Goal programming provides a way of striving toward several objectives simultaneously
A)True
B)False
Q5) In goal programming,constraints are used to assure that every goal is met A)True
B)False
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Chapter 18: Inventory management with known demand
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Sample Questions
Q1) JIT refers to a production system in which goods arrive for processing just as the preceding batch is completed
A)True
B)False
Q2) The objective of an inventory policy is to minimize the total inventory cost per unit time
A)True
B)False
Q3) At what point should she reorder pepperoni?
A)20 pounds remaining
B)40 pounds remaining
C)60 pounds remaining
D)80 pounds remaining
E)100 pounds remaining
Q4) EOQ inventory models are basically concerned with the timing of orders
A)True
B)False
Q5) Holding costs are a function of order size
A)True
B)False
Page 20
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Chapter 19: Inventory management with uncertain demand
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Sample Questions
Q1) Which of these products would be most apt to involve the use of a perishable product model?
A)Gold coins
B)Hammers
C)Fresh fish
D)Calculators
E)Frozen corn
Q2) (R,Q)policies indicate to managers the time between orders
A)True
B)False
Q3) Which of the following is not an assumption of the (R,Q)model?
A)Each application involves a single stable product
B)The inventory level is under continuous review
C)The only decisions to be made are to choose R and Q
D)The lead time is fixed
E)If a stockout occurs,the excess demand is backlogged
Q4) The perishable product model can be very helpful in determining how much to order
A)True B)False
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Chapter 20: Computer simulation with crystal ball
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Sample Questions
Q1) Which of the following is not a good choice for run preferences when using OptQuest?
A)500 trials
B)Using a different sequence of random numbers
C)Latin Hypercube sampling method
D)Update forecast windows and check precision control every 50 trials
E)All are good choices when using OptQuest
Q2) The binomial distribution describes the number of times an event occurs in a fixed number of trials
A)True
B)False
Q3) Which of the following are three-parameter distributions?
A)Weibull distribution
B)Normal distribution
C)Beta distribution
D)All of the above
E)a and c only
Q4) A forecast cell refers to a random input cell
A)True
B)False
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