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. 你獲得項(xiàng)目活動(dòng)的三種估算。最樂(lè)觀估算為245 天，最悲觀估算為269 天，最可能估算為257 天。這個(gè)活動(dòng)對(duì)項(xiàng)目非常關(guān)鍵，你的項(xiàng)目發(fā)起人希望獲得關(guān)于活動(dòng)歷時(shí)95%的確定結(jié)果，你將向發(fā)起人匯報(bào)：
A. 265至273天
B. 253至261天
C. 261至277天
D. 249至265天

參考答案：D。平均值為257 天，標(biāo)準(zhǔn)差為4 天。計(jì)算方法參見(jiàn)《PMBOK 指南》第5 版第170-171 頁(yè)

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. 根據(jù)學(xué)習(xí)曲線理論（learningcurve theory），當(dāng)很多項(xiàng)是重復(fù)生產(chǎn)時(shí)：
A．需要較少操作員培訓(xùn)的生產(chǎn)設(shè)備可以降低單位成本
B．隨著生產(chǎn)率的提高，單位成本減少
C．隨著生產(chǎn)更多的單位，單位成本有規(guī)律的降低
D．隨著自動(dòng)化程度的增加，培訓(xùn)成本也增加

參考答案：C。選項(xiàng)C 就是學(xué)習(xí)曲線的定義，學(xué)習(xí)曲線通俗的說(shuō)法就是“熟能生巧”。

3．The flexibility of scheduling is by
A. Free float
B. Total float
C. ADM
D. Crashing
3. 進(jìn)度安排的靈活性是由（）決定的？
A. 自由時(shí)差
B. 總時(shí)差
C. 箭線圖法
D. 趕工

參考答案：B。參見(jiàn)《PMBOK 指南》第5 版第176-177 頁(yè)

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. 你收到項(xiàng)目任務(wù)的估算如下，最悲觀24 天，最樂(lè)觀18 天，最可能20 天，一個(gè)標(biāo)準(zhǔn)差是多少？
A. 1
B. 0.33
C. 0.67
D. 1.5

參考答案：A。計(jì)算方法參見(jiàn)《PMBOK 指南》第5 版第170-171

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. 估算活動(dòng)持續(xù)時(shí)間的工具方法包括：
A. 類比估算、參數(shù)估算、三點(diǎn)估算
B. 專家判斷、類比估算、參數(shù)估算、三點(diǎn)估算
C. 專家判斷、類比估算、參數(shù)估算、三點(diǎn)估算和儲(chǔ)備分析
D. 專家判斷、類比估算、參數(shù)估算、三點(diǎn)估算和自下而上估算

參考答案：C。參見(jiàn)《PMBOK 指南》第5 版第166 頁(yè)

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. 什么時(shí)候項(xiàng)目的完成會(huì)發(fā)生變動(dòng):
A．關(guān)鍵路徑壓縮時(shí)
B．當(dāng)不允許使用應(yīng)急儲(chǔ)備時(shí)
C．當(dāng)減少項(xiàng)目資源的時(shí)候
D．沒(méi)有總時(shí)差的情況下

參考答案：A。關(guān)鍵路徑?jīng)Q定項(xiàng)目的最短工期，當(dāng)關(guān)鍵路徑壓縮，項(xiàng)目的工期就會(huì)縮短

7．Resource leveling generally
A. Increases the total project cost.
B. Delays project completion.
C. Requires less resources
D. Requires more resources
7. 資源平衡通常:
A．增加整個(gè)項(xiàng)目成本
B．拖延項(xiàng)目的完成
C．需要較少的資源
D．需要更多的資源

參考答案：B。資源平衡的前提是資源不足，資源平衡會(huì)導(dǎo)致工期延長(zhǎng)。參見(jiàn)《PMBOK 指南》第5 版第179 頁(yè)

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.在歷時(shí)壓縮過(guò)程中，你為關(guān)鍵路徑活動(dòng)增加了資源。接下去必須考慮什么呢?
A．其他活動(dòng)的拖延
B．產(chǎn)生新的關(guān)鍵活動(dòng)
C．分配到關(guān)鍵路徑其他任務(wù)的資源
D．進(jìn)度計(jì)劃中工時(shí)最長(zhǎng)的任務(wù)

參考答案：B。進(jìn)度壓縮是壓縮關(guān)鍵路徑時(shí)間，次關(guān)鍵路徑可能會(huì)成為新的關(guān)鍵路徑

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
9.一旦為一個(gè)完整網(wǎng)絡(luò)計(jì)算出活動(dòng)歷時(shí)，順推法與逆推法就會(huì)提供，
A．活動(dòng)的總時(shí)差
B．只有最早開(kāi)始與最晚開(kāi)始時(shí)間
C．關(guān)鍵路徑
D. A和C

參考答案：D。參見(jiàn)《PMBOK 指南》第5 版第176-177 頁(yè)

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. 項(xiàng)目有三條關(guān)鍵路徑。這對(duì)項(xiàng)目有什么不同嗎?
A. 它使項(xiàng)目更易于管理
B. 它增加了項(xiàng)目風(fēng)險(xiǎn)
C. 它需要更多的人員
D. 這種情況是不可能的
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

參考答案：B。有三條關(guān)鍵路徑，意味著任何一條延誤，都會(huì)導(dǎo)致項(xiàng)目延誤，風(fēng)險(xiǎn)較高。參見(jiàn)《PMBOK 指南》第5 版第176-177 頁(yè)