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Isom exam
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Questions in this quiz (39)
1When using a graphical solution procedure, the region bounded by the set of constraints is called the
- Asolution
- Bfeasible region
- Cinfeasible region
- Dmaximum profit region
- Enone of the above
2In an LP problem, at least one corner point must be an optimal solution if an optimal solution exists.
- ATrue
- BFalse
3A graphical method should only be used to solve an LP problem when
- Athere are only two constraints
- Bthere are more than two constraints
- Cthere are only two variables
- Dthere are more than two variables
4In solving a linear program, no feasible solution exists. To resolve this problem we might
- Aadd another variable
- Badd another constraint
- Cremove or relax a constraint
- Dtry a different computer program
5A feasible solution to an LP problem
- Amust satisfy all of the problem's constraints simultaneously
- Bneed not satisfy all of the constaints, only some of them
- Cmust be a corner point of the feasible region
- Dmust give the maximum possible profit
6Linear programming can be used to select effective media mixes, allocate fixed or limited budgets across media, and maximize audience exposure.
- Atrue
- Bfalse
7The selection of specific investments from among a wide variety of alternatives is the type of LP problem known as
- Athe product mix problem
- Bthe investment banker problem
- Cthe portfolio selection problem
- Dthe wall street problem
- Enone of the above
8Simulation is a technique usually reserved for studying only the simplest and most straightforward of problems
- ATrue
- Bfalse
9Simulation typically requires a familiarity with statistics to evaluate the results
- Atrue
- Bfalse
10The verification process involves making sure that
- Athe model adequately represents the real-world system
- Bthe model is internally consistent and logical
- Cthe correct random numbers are used
- Denough trial runs are simulated
11The validation process involves making sure that
- Athe model adequately represents the real-world system
- Bthe model is internally consistent and logical
- Cthe correct random numbers are used
- Denough trial runs are simulated
12A meteorologist was simulating the number of days that rain would occur in a month. The random number interval from 01 to 30 was used to indicate that rain occurred on a particular day, and the interval 31-00 indicated that rain did not occur. What is the probability that rain did occur?
- A0.30
- B0.31
- C1.00
- D0.70
13Simulation is best thought of as a technique to
- Agive concrete numerical answers
- Bincrease understanding of a problem
- Cprovide rapid solutions to relatively simple problems
- Dprovide optimal solutions to complex problems
14When simulating the Monte Carlo experiment, the average simulated demand over the long run should approximate the
- Areal demand
- Bexpected demand
- Csample demand
- Ddaily demand
15The idea behind the simulation is to
- Aimitate a real-world situation
- Bstudy the properties and operating characteristics of a real-world situation
- Cdraw conclusions and make action decisions based on simulation results
- Dall of the above
16What is the optimum solution to this problem (X,Y)?
- A(0,0)
- B(50,0)
- C(0,100)
- D(400,0)
- ENone of the above
17The feasible corner points are (48,84), (0,120), (0,0), (90,0). What is the maximum possible
value for the objective function?
- AA) 1032
- B1200
- C360
- D1600
- ENone of the above
18A widely used mathematical programming technique designed to help
managers and decision making relative to resource allocation is called- AA) linear programming
- Bcomputer programming
- Cconstraint programming
- Dgoal programming
- ENone of the above
19The simultaneous equation method is
- Aan alternative to the corner point method.
- Buseful only in minimization methods.
- Can algebraic means for solving the intersection of two or more
constraint equations. - Duseful only when more than two product variables exist in a
product mix problem. - ENone of the above
20Typical resources of an organization include
- Amachinery usage.
- Blabor volume
- Cwarehouse space utilization
- Draw material usage
- EAll of the above
21Sensitivity analysis may also be called
- Apost-optimality analysis.
- Bparametric programming
- Coptimality analysis
- Dall of the above
- ENone of the above
22If the addition of a constraint to a linear programming problem does not change
the solution, the constraint is said to be- Aunbounded.
- Bnonnegative
- Cinfeasible
- Dredundant
- Ebounded
23Infeasibility in a linear programming problem occurs when
- Athere is an infinite solution.
- Ba constraint is redundant.
- Cmore than one solution is optimal.
- Dthe feasible region is unbounded.
- Ethere is no solution that satisfies all the constraints given.
24Simulation of a business or process is generally performed by
building a mathematical model to represent the process or system.- ATrue
- BFalse
25One of the major advantages of simulation is "time compression," i.e.,
the ability to study in a relatively short period, activities that would, in
the reality, take place over a period of days, months, or even years.- ATrue
- BFalse
26One disadvantage of simulation is that it does not allow for "what-if?"
types of questions.- ATrue
- BFalse
27What is the probability of selecting any random number from a two
digit table?- A0.001
- B0.01
- C0.10
- D0.02
- ENot enough info provided
28The process of comparing a model to the real system that it
represents to make sure it is accurate is called- Avalidation.
- Bverification
- Csimulation
- Dexperimentation
- ENone of the above
29According to the above table, what is the cumulative probability of 2 breakdowns?
- A0.35
- B0.5
- C0.85
- D0.15
- E0.2
30According to the above table, what is the probability of at least one breakdown?
- A0.2
- B0.3
- C0.5
- D0.8
- E0.85
31According to the above table, if a random number of 00 is drawn, what would the simulated number of breakdowns be?
- A0
- B1
- C2
- D3
- ENot enough info
32The process of determining that the computer model is internally
consistent and following the logic of the conceptual model is called- Avalidation.
- Bverification
- Csimulation
- Dexperimentation
- Enone of the above
33Which of the following is not considered one of the 5 steps of Monte
Carlo Simulation?- Aestablishing probability distributions for important input variables
- Bgenerating random number
- Cbuilding a cumulative probability distribution for each input variable
- Destablishing an objective function
- Esimulating a series of trials
34 If = 23 ounces, σ = 0.4 ounces, n = 16, and z = 1, what will be the UCL
and LCL values?- A21.8 to 24.2 ounces
- B23 ounces
- C22.70 to 23.30 ounces
- D22.25 to 23.75 ounces
- E22.90 to 23.10 ounces
35Simulation is best thought of as a technique to
- AGive concrete numerical answers
- BIncrease understanding of a problem
- CProvide rapid solutions to relatively simple problems
- DProvide optimal solutions to complex problems
36Which of the following is an advantage of simulation?
- AIt will always find the optimal solution to a problem
- BIt is always relatively simple and inexpensive
- CThe results are usually transferable to other problems
- DIt allows time compression
37The process of comparing a model to the real system that it
represents to make sure it is accurate is called- Avalidation.
- Bverification
- Csimulation
- Dexperimentation
- ENone of the above
38A _______ chart is a graphical representation of process data over
time.- Adecomposition
- Bsmoothing
- Ccontrol
- Dregression
- Esimulation
39The _________ is a measure of the mean (average).
- AX-bar chart
- Br chart
- Cp chart
- Dc chart
- Em chart
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- Quiz on Isom exam , created by Anne Muise on 29/04/2019.
- Author
- Anne Muise
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- History
- Created on 29 Apr 2019 · updated on 29 Apr 2019
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