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• 17. According to Chebyshev inequality, the probability that the distance between a random variablean
• 2. ________ systems are especially suited to situations in which the procedure for arriving at a sol
• 3. ________ are designed to support organization-wide process coordination and integration.(A) Enter
• 4. The value chain model(A) sees the supply chain as the primary activity for adding value.(B) helps
• 5. All of the following are current hardware platform trends except(A) Unix (B) virtualization (C) c
• 6. Which of the following is not one of the main six factors to consider when evaluating how much yo
• 7. Which of the following is not the feature of NoSQL databases?(A) high scalability (B) distributed
• 8. A data warehouse is composed of(A) historic and current internal data (B) historical data from le
• 9. Which of the following server can be used as a Firewall to protect the network systems?(A) Proxy
• 10. What service converts IP addresses into more recognizable alphanumeric names?(A) HTML (B) IP (C)
• 11. The bullwhip effect is countered by(A) reducing information uncertainty (B) implementing an SCM
• 12. Netflix's public announcement of a reward for a technology solution to its movie recommenda
• 13. Which of the following statements about collaboration is true?(A) In business, a collaboration c
• 14. What is the most important function of an enterprise application?(A) increasing speed of communi
• 15. The four major types of competitive strategy are(A) low-cost leadership； product differentiation
• 8. 在管線處理(pipelining)中將執行指令區分成 指令解碼 指令執行 結果存回 指令擷取，四個步驟，其先後順序應為下列何者? (A) (B) (C) (D)
• 18. The probability density function of random variableXis.Var( X) = ?(A) 1(B) 3(C) 6(D)9
• 2.有三台單相理想變壓器，每台容量皆為20kVA，匝數比皆為20:1，現以Y - △接線，供應功率因數為0.92滯後之三相平衡負載，滿載時測得一次側線電壓3300V，則二次側線電壓為多少伏特？(A)
• 3.有一部三相感應電動機，銘牌上標示極數4極，60Hz，2Hp，220V，滿載轉差率3%，則額定輸出轉矩約為何？(A) 6.74 Nt-m (B) 7.92 Nt-m (C) 8.16 Nt-m (D
• 4.有一部他激式直流發電機，已知激磁電壓120V，磁場電阻為50Ω，電樞電阻為0.2Ω，當負載端電壓為180伏特，電樞電流為20A時，不考慮電刷壓降，則電樞感應電勢為多少伏特？(A) 184V (B)
• 5.有一部直流發電機滿載時的固定損為1200W，變動損為1800W，若只考慮固定損及變動損，則半載時總損失為多少瓦特？(A) 3000W (B) 2100W (C) 1650W (D) 1400W
• 6.有一台理想變壓器，容量600VA，負載端有一個50歐姆的燈泡，量測負載電流為4安培，電源電流為2安培，則電源電壓為多少伏特？(A) 120V (B) 200V (C) 300V (D) 400V
• 7.感應電動機轉子轉速超過同步轉速時，會變成發電狀態並產生反轉矩，此種制動方式稱為何？(A)再生制動 (B)插塞制動(C)動力制動 (D)單相制動
• 8.測量三相感應電動機定子繞組電阻值，已知繞組為△接線，將任兩條電源線外加12伏特直流電壓時，測得輸入電流為2安培，則每相繞組的直流電阻值為何？(A) 3Ω (B) 4.5Ω (C) 6Ω (D) 9
• 9.有關三相同步發電機阻尼繞組之功用，下列敘述何者正確？(A)改善功率因數 (B)防止轉軸追逐現象(C)降低起動電流 (D)機械平衡