問題詳情
53.關於三相鼠籠式轉子感應電動機的起動方式，下列哪些敘述正確？
(A)可採用Y -方式起動，無論是起動電流或是轉矩都會是全壓起動的13
(B)可採用轉子外接電阻方式起動，減少起動電流同時也增加起動轉矩
(C)線路串聯電阻器或是電抗器都可降低起動電流，但同時也會降低起動轉矩
(D)可採用自耦變壓器降壓起動，電源側的起動電流會低於負載側的起動電流
(A)可採用Y -方式起動，無論是起動電流或是轉矩都會是全壓起動的13
(B)可採用轉子外接電阻方式起動，減少起動電流同時也增加起動轉矩
(C)線路串聯電阻器或是電抗器都可降低起動電流，但同時也會降低起動轉矩
(D)可採用自耦變壓器降壓起動，電源側的起動電流會低於負載側的起動電流
參考答案
答案：A,C,D
難度：非常困難0.0588235
統計：A(4),B(2),C(3),D(4),E(0)
內容推薦
- 【題組】October 10th is our n l holiday, so we don’t have to go to work or school on that day.
- 原發性醛固酮增多症 (primary aldosteronism)常造成高血壓,有關其診斷描述,何者正確? 在非臥床(ambulatory)的病人,清晨抽血時; 血清中醛固酮/腎素活性(p
- Vicky and Eason were worried at first, but they soon _______ a good solution(解決) to the problem.
- 【題組】What does the article suggest us to do?(A) Eat more fast food. (B) Don’t eat too much fruit.(
- Da-Tan Liu was born 41 19Liu got sickseriously 42 he was two. From then on, he couldn’tstand str
- 【題組】(A) hard (B) hardly (C) harder (D) hardest
- One of the cats black. (A) are (B) is (C) being (D) to beMike and Melody have both made New Year
- 【題組】(A) if (B) so (C) when (D) because
- 三、依提示作答 （每題4分，共12分）【題組】0When I walked into the restaurant, Teresa was eating her lunch.（用 while 開
- 下列何種投影法適用於我國國家標準 (CNSB1001)規定的機械製圖？(A)第一角法 (B)第二角法 (C)第三角法 (D)第四角法
內容推薦
- 二、 Fill in: Fill in who, which, whose, or that ( 5 %, 1 point for each)【題組】Who is the long-hair w
- Mom makes me _______ off the computer, but Dad wants me _______ something on the Internet for him
- 對於下列爭議事件提起之訴願，何者應為訴願不受理之決定？ (A)認定不具備承租社會住宅之資格 (B)對於拆除違章建築之執行方法有爭議 (C)因酒駕肇事而依法吊銷駕駛執照 (D)被保險人未獲全民健康
- 【題組】( ) (A) call (B) called (C) am calling (D) will call
- 下列有關立法委員選舉制度之敘述，何者錯誤？ (A)原住民立法委員共有六人(B)當選之立法委員名單中婦女不得低於二分之一 (C)僑居國外國民可透過全國不分區席次當選立法委員 (D)選舉人有二票
- 【題組】Which disadvantage(缺點) about cellphones isn’tmentioned in the article?(A)Accidents.(B)The hu
- 【題組】2 Which is NOT the reason why the writer doesn’t like snow ?(A)A bear will run on the road. (B)
- 【題組】The TV p____m is about a little cat. It is on now.
- If you don’t understand the meaning of a word, you should it in the dictionary.(A)share; with (B
- A：How often do you read comic books? B：_____(A) Yes, I read comic books. (B) Where did you read
- 【題組】Which is correct?(A) Kelly can’t speak any Chinese. (B) Kelly enjoyed seeing the Taiwanese op
- ( )When I was young, I didn’t ______ how important being in good health was.(A)recognize(B)create(
- 乙型受體阻斷劑(beta-blocker)可用於左心室射出分率減少時之心臟衰竭藥物治療,下列敘述何者正確? 可以使用xamoterol 可以使用bisoprolol 可以使用c
- 「少年聽雨歌樓上，紅燭昏羅帳。壯年聽雨客舟中，江闊雲低斷雁叫西風。而今聽雨僧廬下， 鬢已星星也。悲歡離合總無情，一任階前點滴到天明。」（蔣捷〈虞美人〉）下列敘述，何者最接近這闋詞的意境？ (A)為
- 關於題辭之使用，何者有誤？(A)竹苞松茂—賀新居落成 (B)青雲直上—賀升調任新職 (C)龍門聲價—賀升調任新職 (D)孟母遺風—賀遷居
- 一位70歲男性病患因心房顫動就診,該心律不整病史已有1年以上.過去有高血壓及糖尿病史,最近有陣發性夜間呼吸困難與腳部水腫;心臟超音波左心射出分率為29%.無心肌梗塞,中風或週邊血管阻塞疾病病史.
- 【題組】Helen Keller went b d when she was little.
- 二、文意字彙：20分【題組】To save e y, we should turn off the lights when we leave our classroom.
- 【題組】(A) It (B) This (C) That (D) There
- Takeing a trip to France is my dream. I’m_____the chance.(A) waiting for (B) taking off (C) at lea
- I _____ three thousand dollars for the tickets to A-Lin’s concert.(A) cost (B) took (C) bought (
- 【題組】Do you know the lady ______ son lives next door?
- 關於金屬材料的塑性加工法，下列哪些敘述錯誤？(A)塑性加工使材料永久變形(B)在室溫對鉛材料進行塑性加工，是冷加工(C)滾軋法可製成 L，U 等的型鋼(D)都需加熱至再結晶溫度以上加工
- A: You look sick_____. B: Yes, I got a bad cold.(A) Are you ok? (B) Are you under the weather? (C
- 【題組】( ) (A) are going to prepare (B) prepared (C) are preparing (D) were preparing