資訊推薦

• 68.三相感應電動機的定子繞組，通常採用下列何者？(A) 單層繞、分布繞、短節距繞(B) 雙層繞、集中繞、全節距繞(C) 雙層繞、分布繞、短節距繞(D) 雙層繞、分布繞、全節距繞
• 69.下列何種起動方法不適用於三相鼠籠式感應電動機？(A) Y–△降壓起動法(B) 電抗器降壓起動法(C) 轉子插入電阻法(D) 補償器降壓起動法
• 70.接於三相感應電動機之三條電源線，任意兩條互相對換二次，則電動機：(A) 改變轉向(B) 轉向不變(C) 停止轉動(D) 轉速升高
• 71.有台 20 馬力之三相感應電動機，若已知全壓起動電流為 90 安培，則採 Y-∆ 降壓起動時，起動電流應為若干？(A) 30 安培(B) 45 安培(C) 60 安培(D)  180 安培
• 72.有台4極 50 馬力 220 伏特之三相感應電動機工作於額定電壓，其起動轉矩為 300 牛頓-公尺，若將電壓降至 110伏特，則其起動轉矩變為若干牛頓-公尺？(A) 75(B) 100(C) 1
• 73.有部三相繞線型轉子感應電動機，滿載轉差率為 4%，轉子每相電阻為 1 Ω，若欲使此電機之起動轉矩等於滿載轉矩，則此時應在轉子之每相電路上串接多少歐姆電阻？(A) 3(B) 8(C) 12(D)
• 74.有一台 24 極之同步發電機，若其轉速為每分鐘 300 轉，則所產生之交流頻率為多少赫茲？(A) 25(B) 50(C) 60(D)  120
• 38. 本船排水量4,000公噸，KG=4.0m，裝卸貨(公噸)後之各艙狀況如附表，求裝卸完後之KG為幾公尺？ (A)4.16 (B)4.29 (C)4.69 (D)4.78
• 1 1950 年代伊斯頓（Easton）提出系統理論，成為政治學發展先驅，然而這個理論有下列那一個缺點？ (A)該理論忽略政黨與壓力團體所扮演的角色 (B)系統理論與行為主義互相衝突，前者不相信科學分
• 61.將各為 1.0 莫耳的 NaOH， K2SO4， BaCl2， 固體，分別放入 1 升的水中，試求何者溶液之蒸氣壓最高？(A)NaOH (B) K2SO4 (C) BaCl2 (D)
• 2. He’s definitely not a man of _____. He’s always talking about his achievements and never misses a
• 3. The young actress _____ for a role in the new movie, hoping she would be able to appear on the bi
• 4. The number of people affected is _____ to reach 4,000 in the next 5 months if nothing is done soo
• 5. You’d better go to a doctor immediately if you’re showing _____ of lung diseases.(A) diameters(B)
• 6. You can find the latest numbers on line as they are _____ every ten minutes.(A) subsisted(B) upda
• 7. The special device can _____ huge amounts of data from one place to another 500 miles away in jus
• 8. The man could only take the seat next to the bathroom because all the others were not _____.(A) d
• 9. _____ is made from environmental friendly materials.(A) Nearly all of what you see here(B) Near a
• 10. Taking trips abroad was _____ a luxury that only wealthy families could enjoy.(A) thought once w
• 11. While some of the rich kids drove to school every day, _____ could only walk or take the school
• 75.有一台三相4 極同步發電機，電樞繞組採用 線圈節距時，其節距因數KP 為何？(A) sin40°(B) sin160°(C) cos80°(D) cos10°
• 12. Protesters argued that the contractors tasked with caring for children weren't qualified fo
• 13. The plane, _____ Tokyo 16 hours ago, will arrive in New York soon.(A) departed from(B) which dep
• 14. Considering the possible danger involved, _____.(A) the less you know the better(B) you know les
• 15. If the police had not arrived in time, the poor man _____.(A) would dead(B) have been died(C) wo