工业计算机选择判断.docx

1、工业计算机选择判断1、Frederick W. Taylor is generally credited with inventing and establishing standards for the moving assembly line.(F)2、Human effort, technology, raw materials, information and dollars are all examples of the necessary inputs to operations.（T）3、The outputs of operations may be classified as

2、 goods, raw materials and profits.（T）4、It is easier to measure productivity for an operation that provides services than for one that produces goods since there is no material used in services.（F）5、The only disadvantage to using the Pareto principle is that we need to concentrate problem-solving eff

3、orts on a large number of factors.（F）6、Two major trends in operations management are management of supply chains and management of technology.（T）7、Operations Management includes all of these activities except:（B）A、Schedule work B、Secure financial resources C、Maintain qualitD、Oversee the transformati

4、on process E、Manage inventories8、Which one of these was not mentioned in the list of recent trends in operations management（D）A、Total quality management B、Worker involvement C、Global competition.D、Automation. E、Environmental issues.9、The major difference between goods and services is:（A） is difficul

5、t to inventory services lack the profitability that goods enjoy production usually requires more labor than services are always customized, services are always standardized organization offering goods cannot also offer services10、Which of the following is not a type of operations（E）A.goods productio

6、n transportation analysis11、Which of the following is not true about a lean production system（E）A、It puts emphasis on quality, flexibility, and time reduction.B、It puts emphasis on reducing a companys labor forceC、It is involved in maintaining and improving the system with lower amounts of inventory

7、.D、It uses small production batch sizesE、It uses safety stock to protect against uncertainty.12、Many factors impact productivity, one factor not generally stated as having a negative impact on productivity is:（B）A、Government regulations B、Liability claims C、Increased emphasis on servicesD、Emphasis o

8、n short-term performance E、All are reasons13 Which is the correct hierarchy of operations management decisions (highest first)（E）A、Operating, tactical, strategic B、Operating, strategic, tactica C、Goals, missions, productivity D、Strategic, operating, tactical E、Strategic, tactical, operating14、An ope

9、rations strategy is developed using many sources of input - which is the least likely to have input（C）A、Quality B、Planning C、Suppliers D、Top Management E、Production15、A measure of productivity which reflects a combination of some or all of the resources used to obtain a certain output is:（C）A、labor

10、productivity B、machine productivity C、multi-factor productivity D、materials productivity E、overhead productivity16、Distinctive competencies in organizations seldom relate to:（E）A、price (cost) B、quality C、time D、flexibility E、facilities layout17、Productivity is calculated by:（D）A、Dividing inputs by o

11、utputs B、Multiplying inputs by outputs C、Adding inputs to outputs D、Dividing outputs by inputs E、Using benchmarking to yield results18、Product design that uses computers is referred to as:（D）A、QFD B、CAM C、RFD D、CAD E、TQM19、Which of the following could be a dimension of quality（E）A、Performance. B、Con

12、formance C、Reliability D、Durability E、All may be dimensions of quality.20、Which of the following most accurately describes remanufacturing（C）A、Processing a component twice to assure conformance to specificationB、Redesigning the layout of the factory C、Replacing worn out components in products and re

13、selling the productsD、Redesigning the product. E、Retraining the workers21、Which of the following is most typical of modular design（B）A、A single module includes all product functionality. B、Standard modules can be combined in a variety of ways.C、Inventories of completed products will be significantly

14、 higherD、Defective modules are usually repaired rather than replaced.E、All of the above are true22、As part of a strategy for improving competitiveness, a manager may have to initially sacrifice:（B）A、research and development B、short-term performance C、employee pay raisesD、product or service quality E

15、、management incentive payments (bonuses)23、Service design generally differs from product design in which of the following ways（B）A、Service design tends to focus on tangible factors. B、There is less latitude in detecting and correcting errors prior to deliveryC、There is a lesser requirement to be awa

16、re of competitors offeringsD、There is less visibility to customers. E、Once designed, service tends to remain constant while product design will change often.24、The mission of a firm should be designed to support each of the firms functional strategies.（F）25、Productivity is the ratio of input to outp

17、ut, with input limited to material and labor. （F）26、A company can compete with other companies manufacturing a similar product only by selling at a lower price.（F）27、Management has a great deal of responsibility for improving productivity.（T）28、Productivity less than 100% generally results in operat

18、ions that lose money.（F）29、A major consideration in product design in addition to quality is manufacturability.（T）30、Environmental scanning refers to checking environmental regulations before proceeding with product design（F）31、The term “concurrent engineering” refers to having both engineering and

19、manufacturing personnel working independently early in the design phase.（F）32、Delayed differentiation and modular design are two tactics useful for mass customization.（T）33、Quality function deployment is a structured method of integrating the voice of the customer into the design process.（T）34、Accur

20、ate forecasting can be done with inaccurate historical data. If the forecasting model is a good one, it will improve the input used.（F）35、Aggregated (grouped) data frequently generate better forecasts than non-aggregated data used to forecast individual items.（T）36、If quantitative data is available

21、on which to base a forecast, it is unnecessary to consider qualitative information.（F）37、The Delphi technique is a forecasting model, developed in India, which incorporates the use of multiple regression.（F）38、In a good forecast, about half of the forecast misses should be randomly scattered above t

22、he actual results and half below the actual results.（T）39、Double exponential smoothing can only be used if there is no observable trend in the data.（F）40、Seasonality refers to data patterns that recur every year (or every week, or every month, etc.) at about the same time.（T）41、Which of the followin

23、g forecasting techniques generates trend forecasts（E）A、Delphi method force composites averages exponential smoothing of the above42、For this set of errors: -1, -4, 0, +2, +3, MAD is:（C） 、Which probability distribution is used most extensively in dealing with forecasting errors（A） 44、The cumulative f

24、orecast error is important for determining the:（B）A.Mean squared error in forecast error. absolute deviation. limits coefficient45、When we use exponential smoothing for forecasting, the alpha value (smoothing constant) that would give the greatest weight to the current actuals would be:（E） B.01 C.10

25、 D.20 E.3046、Which of the following smoothing constants would make an exponential smoothing forecast equivalent to a naive forecast（E） B.01 C.1 D.5 、Simple exponential smoothing is being used to forecast demand. The previous forecast of 66 turned out to be six units less than actual demand. The next

26、 forecast is , implying a smoothing constant, alpha, equal to:（B）A.01 B.10 C.15 D.20 E.6048、The temperature on Tuesday was 80 degrees, on Wednesday it was 82 degrees, on Thursday it was 78 degrees. A naive forecast for the temperature on Friday would be:（A） t tell from the data given49、Reliabilities

27、 are typically specified with respect to normal operating conditions.（T）50、If a system is made up of two components that are in series, and both have failure rates of 50%, the probability that the system will fail is 75%.（T）51、The probability that a serial system will work is the sum of the probabil

28、ities that each component will work divided by the number of components.（F）52、Adding three or more identical backup systems will assure 100% reliability.（F）53、The costs of backup systems need to be balanced against the costs of failure.（T）54、A system is composed of three components, A, B and C. All

29、three of these components must function in order for the system to work. Their reliabilities are respectively: A, ; B1, ; C, . The overall system reliability is:（C） 、A life test has shown that coffeemakers fail in use at the rate of per month. The manufacturer warranties that a coffeemaker will last

30、 for 12 months of ordinary usage. What is the reliability of any individual coffeemaker（C） 、A system is composed of two parts which must both operate in order for the system to perform as intended. The parts have reliabilities of .6 and .5. There is an identical backup system connected to the main s

31、ystem by a switch which has a reliability of .9. The probability that the overall system will operate is closest to:（C）A.30 B.40 C.50 D.60 E.7057、If the transformer has a mean time to wear-out of 20 years with a standard deviation of 2 years, what is the probability that it will wear out within 19 y

32、ears（B） 、Four major components - video, audio, tuner and power supply - make up a big screen television set. All must function for the set to be accepted for shipment to customers. Reliabilities for each major component are 80%. What is the probability that a newly made set will be accepted for shipment（C） % % % t determine without further information59、Our estimates regarding short-run variations in demand can infl