PMBOK指南(第5版)第六章习题

1. You have received three estimates for your project activity. The optimistic

estimate is 245 days, the pessimistic estimate is 269 days, and the most likely estimate is 257 days. This particular activity is critical to the project, and your project sponsor wants to know with 95 percent certainty how long it will take to complete this activity. Which of the following do you tell the project sponsor?

A. 265 days to 273 days B. 253 days to 261 days C. 261 days to 277 days D. 249 days to 265 days

1. 你获得项目活动的三种估算。最乐观估算为245天，最悲观估算为269天，最可能估算为257天。这个活动对项目非常关键，你的项目发起人希望获得关于活动历时95%的确定结果，你将向发起人汇报： A. 265至273天 B. 253至261天 C. 261至277天 D. 249至265天

2．According to learning curve theory, when many items are produced repetitively

A. Production equipment that requires less operator training lowers unit costs

B. Unit costs decrease as production rates increase

C. Unit costs decrease in a regular pattern as more units are produced D. Costs of training increase as the level of automation increases 2. 根据学习曲线理论（learning curve theory），当很多项是重复生产时： A．需要较少操作员培训的生产设备可以降低单位成本 B．随着生产率的提高，单位成本减少

C．随着生产更多的单位，单位成本有规律的降低 D．随着自动化程度的增加，培训成本也增加

3．The flexibility of scheduling is by A. Free float B. Total float C. ADM

D. Crashing

3. 进度安排的灵活性是由（ ）决定的？ A. 自由时差 B. 总时差 C. 箭线图法 D. 赶工

4. You have received estimates for one of your project tasks as follows: The pessimistic estimate is 24 days, the optimistic estimate is 18 days, and the

most likely estimate is 20 days. What is the standard deviation? A. 1 B. 0.33 C. 0.67 D. 1.5

4. 你收到项目任务的估算如下，最悲观24天，最乐观18天，最可能20天，一个标准差是多少？

A. 1 B. 0.33 C. 0.67 D. 1.5

5. Which of the following choices include all the tools and techniques to the process of estimate activity duration?

A. Analogous estimating, parametric estimating and three-point estimating B. Expert judgment, analogous estimating, parametric estimating and three-point estimating

C. Expert judgment, analogous estimating, parametric estimating three-point estimating durations and reserve analysis

D. Expert judgment, analogous estimating, parametric estimating three-point estimating durations and bottom-up estimating 5. 估算活动持续时间的工具方法包括： A. 类比估算、参数估算、三点估算

B. 专家判断、类比估算、参数估算、三点估算

C. 专家判断、类比估算、参数估算、三点估算和储备分析

D. 专家判断、类比估算、参数估算、三点估算和自下而上估算

6．When is the project completion changed?

A. Compression of Critical Path

B .When the use of contingency reserve is not allowed C. At the time of project resources are decreased D. No float

6. 什么时候项目的完成会发生变动: A．关键路径压缩时

B．当不允许使用应急储备时 C．当减少项目资源的时候 D．没有总时差的情况下

7．Resource leveling generally A. Increases the total project cost. B. Delays project completion. C. Requires less resources D. Requires more resources 7. 资源平衡通常:

A．增加整个项目成本 B．拖延项目的完成 C．需要较少的资源 D．需要更多的资源

8．During the duration compression you increased the resources to a critical path activity or activities. What must be further considered? A. The delay of the other activity B. New critical activities come out

C. The resources assigned to the other tasks on the critical path D. The longest task which resides in the schedule

8.在历时压缩过程中，你为关键路径活动增加了资源。接下去必须考虑什么呢? A．其他活动的拖延 B．产生新的关键活动

C．分配到关键路径其他任务的资源 D．进度计划中工时最长的任务

9．Once the durations of the activities are calculated for a completed network, a forward pass and a backward pass will provide: A. the float of the activities

B. the early start and late start only C. the critical path D. A and C

9.一旦为一个完整网络计算出活动历时，顺推法与逆推法就会提供， A．活动的总时差

B．只有最早开始与最晚开始时间 C．关键路径 D. A和C

10．A project has three critical paths. What difference does this make to the project?

A. It makes it easier to manage B. It increases the project risk C. It requires more people

D. The situation is not possible

10. 项目有三条关键路径。这对项目有什么不同吗? A. 它使项目更易于管理 B. 它增加了项目风险 C. 它需要更多的人员 D. 这种情况是不可能的

11．A task has an early start of day three, a late start of day 13, an early finish of day nine, and a latefinish of day 19. What is the task’s float? A. 10

B. 6 C. 3 D. 19

11.一个活动最早开始日期为第3天，最后开始日期为第13天，最早结束日期是第9天，最晚结束日期是第19天。这个任务的浮动时差是？ A. 10 B. 6 C. 3 D. 19

12. Which estimating technique(s) uses a statistical relationship between historical data and other variables? A. Analogous Estimating. B. Bottom-up estimating C. Parametric estimating D. Statistical estimating

12. 运用历史数据和其他变量之间的统计关系的估算方法是： A. 类比估算 B. 自下而上估算 C. 参数估算 D. 统计估算

13．Early in the life of your project, you are having a discussion with the sponsor about what estimating techniques should be used. You want a form of expert judgment, but the sponsor argues for analogous estimating. It would be BEST to:

A. agree to analogous estimating as it is a form of expert judgment. B. suggest life-cycle costing as a compromise.

C. determine why the sponsor wants such an accurate estimate.

D. try to convince the sponsor to allow expert judgment because it is typically more accurate.

13. 在项目的早期, 你和项目投资人就采用何种估算技术进行了讨论。你想采用专家判断的形式，可是项目投资人争论使用类比估算。那么最好你： A． 同意采用类比估算，因为它是专家判断的一种 B． 作为妥协，建议采用全生命周期成本估算法 C． 分析为什么项目投资人希望采用这么精确的估算

D． 尝试说服项目投资人采用专家判断，因为此方法很经典更加精确

14．Analogous estimating:

A. Uses bottom-up estimating techniques

B. Is used frequently during the Execution Phase of the project C. Uses top-down estimating techniques D. Uses actual historical costs

14. 类比估算（Analogous estimating）： A．采用了自下而上的估算技术 B．最常用于项目执行阶段 C．采用自上而下的估算技术 D．采用实际历史成本

15．The purpose of making a \A. Critical path B. Early finish dates C. Late start dates D. finishing dates 15. 逆推法的目的是确定: A. 关键路径 B. 最早完成日期 C. 最晚开始日期 D. 赶工日期

16．Several types of float are found in project networks. Float that is used by a particular activity and does not affect the float in later activities is called A． Extra float B． Free float. C． Total float D． Expected float

16. 在项目工作网络中有几种类型的浮动期。那些在特定活动中使用并且不影响后来活动的浮动期被称作 A． 多余的浮动期 B． 自由的浮动期 C． 总的浮动期 D． 预期的浮动期

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说综合文库PMBOK指南(第5版)第六章习题在线全文阅读。