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• 12. An exothermic reaction has(A)has a negative ΔH and absorbs heat from the surroundings. An exothe
• 13. Place the following types of electromagnetic radiation in order of increasingfrequency.(A) micro
• 14. Describe the shape of one of the d orbitals.(A) four lobes in one plane (B) three lobes in one p
• 15. Give the ground state electron configuration for I.(A) [Kr]5s24d105p6 (B) [Kr]5s24d105p5(C) [Kr]
• 16. Of the following, which atom has the largest atomic radius?(A) Rb (B) I (C) Cs (D) At
• 17. Choose the compound below that should have the   lowest   melting pointaccording to the ionic bo
• 18. Using periodic trends, place the following bonds in order of   increasing   ioniccharacter.(A) S
• 19. How many of the following molecules are polar? PCl5 COS XeO3 SeBr2(A) 2 (B) 0 (C) 1 (D) 3
• 20. Using the VSEPR model, the molecular geometry of the central atom in SO2 is________.(A) linear (
• 21. What is the strongest type of intermolecular force present in CHF3?(A) ion-dipole (B) dispersion
• 22. Which of the following compounds exhibits only dispersion and dipole-dipoleintermolecular intera
• 23. Which of the following compounds will be most soluble in ethanol(CH3CH2OH)?(A) trimethylamine (N
• 20. 下列何者並非 50~60 年代在臺灣可能會看到的藝術作品？(A) (B) (C) (D)
• 8. Which subunit of hemoglobin has a single amino acid substitution (Glu6 to Val6)that causes Sickle
• 一、請舉二倒說明,近十年來,在圖書資訊學日益受到關注的議題,並說明各議題的主要內容與發展趨勢。(40分)
• 23. How many asymmetric carbons are presented in the compound below? (A) 2 (B) 3 (C) 4 (D) 5 (E) 6
• 3.日常所使用的交流電源其波形屬於？(A)方波(B)三角波(C)弦式波(D)以上皆非
• 4.對於一個純電感性交流電路，其輸出電壓與電流的關係為：(A)電壓超前電流 90度(B)電壓落後電流 90度(C)電壓與電流同相位(D)無法判斷
• 5.要提高發電機的供電能力及效率應如何處理？(A)提高額定電壓(B)提高額定電流(C)提高功率因數(D)提供供電量
• 6.交流電路中功率因數等於？(A)線路有功功率 P與視在功率 S 的比值(B)線路電壓與電流的比值(C)負載電阻與電抗的比值(D)線路電壓與電流的相位差
• 7.防止變壓器內部絕緣油劣化的方法有？(A)採用氮氣密封(B)採用氧氣物密封(C)使用呼吸器(D)放置吸附劑
• 8.同步發電機電樞之感應電流所產生的電樞磁通，會增加或減少激磁磁場的的強度，此一現象稱之為？(A)磁場反應(B)磁滯效應(C)磁通效應(D)電樞反應
• 10.用來驅動受控裝置動作的機構是？(A)檢測器(B)比較器(C)操作器(D)控制器
• 11.為何直流電動機啟動時，在電樞串聯電阻器，其目的為？(A)作轉向控制(B)減少鐵損(C)減少銅損(D)限制啟動電流
• 13.如果對於某一激磁線圈反覆加入交變激磁電流，則其激磁電流與磁通量所構成的圖形稱之為？(A)磁滯曲線(B)激磁曲線(C)磁化曲線(D)磁場曲線