[{"data":1,"prerenderedAt":61},["ShallowReactive",2],{"q-105170-arch_environment-25":3},{"question":4,"neighbors":26,"sameNumber":45,"prev":34,"next":37},{"id":5,"classKey":6,"session":7,"year":8,"subject":9,"number":10,"groupStem":11,"ownStem":12,"stem":12,"options":13,"answer":18,"answerKind":20,"answerS":11,"answerNote":11,"images":21,"explanation":22,"withheld":11,"deepChars":23,"freq":24,"indexable":25},"arch-105170-801-0104-025","architect","105170",105,"建築環境控制",25,null,"下列那種家電設備屬於電阻性電路？",{"A":14,"B":15,"C":16,"D":17},"電風扇","分離式冷氣機","電熱器","滾筒式洗衣機",[19],"C","single",[],"本題考點：交流電路負載依「電阻、電感、電容」三種元件特性分類，電阻性負載把電能直接經電阻轉成熱能，電壓與電流同相位；凡以電動機（馬達）為主要負載的家電，線圈繞組帶來電感，屬電感性負載。\n【正解理由】判斷一部家電屬於哪一種電路，要看它把電能轉換成什麼、靠什麼元件轉換。電阻性負載的要件有二：第一，能量轉換靠電流流過電阻絲產生的焦耳熱（或白熾發光）；第二，電路中幾乎沒有線圈或電容，電流與電壓的變化同步、沒有相位差，取用的電力幾乎全部是做功的有效功率。電熱器的核心元件就是電熱絲（電阻發熱體），通電後電阻發熱直接供暖，兩個要件都符合，是典型的電阻性負載。其餘三個選項的主要負載都是電動機：電動機靠線圈產生旋轉磁場帶動轉子，線圈具有電感，電流落後電壓，因此屬於電感性負載，不是電阻性負載。故選 C。\n【逐項排除】\n(A) 電風扇：錯。電風扇靠小型感應電動機帶動扇葉，把電能轉成「機械能（轉動）」而不是熱能；電動機繞組是線圈，帶有電感，電流相位落後電壓，屬電感性負載。若要舉出與電風扇同樣用來改善室內熱環境、又屬電阻性的家電，應是電熱器、電暖器這類靠電熱絲發熱的設備。\n(B) 分離式冷氣機：錯。冷氣機的耗電大宗是壓縮機的電動機，另有室內機與室外機的風扇電動機，整體以馬達為主，屬電感性負載。冷氣機搬運熱量靠的是冷媒循環（壓縮、冷凝、膨脹、蒸發），並不是讓電流流過電阻發熱，所以就算它與電熱器同樣處理室內溫度，電路性質完全不同。變頻機種另含電力電子變頻器，同樣不是單純電阻負載。\n(C) 電熱器：正確。電熱器以電阻發熱體為主要元件，電能經電阻全部轉換為熱，電壓與電流同相位，是本題唯一的電阻性電路。同類還有電鍋、電熱水器、電熨斗、白熾燈泡等，判斷關鍵都是「靠電阻發熱或發光」。\n(D) 滾筒式洗衣機：錯。滾筒式洗衣機靠電動機帶動內筒旋轉進行洗滌、脫水，主要負載是馬達，屬電感性負載。部分機種附有加熱烘乾功能，但整機的主要動作仍是馬達驅動，不能因為局部含電熱元件就把整機歸為電阻性電路；要成為電阻性負載，主體必須是電阻發熱元件，例如選項 (C) 的電熱器。\n【記憶點】「發熱靠電阻、轉動靠線圈」：電熱器、電鍋、白熾燈是電阻性；風扇、冷氣、洗衣機有馬達就是電感性。",681,1,true,[27,30,33,36,39,42],{"number":28,"session":7,"stem":29},22,"在自動滅火設備中，電氣機房消防安全適合採用下列何種設備？①自動撒水 ②泡沫 ③CO2…",{"number":31,"session":7,"stem":32},23,"下列有關瓦斯漏氣警報設備設置之規定，何者錯誤？",{"number":34,"session":7,"stem":35},24,"關於發電機的設置，下列敘述何者錯誤？",{"number":37,"session":7,"stem":38},26,"欲設計一大型恆溫恆濕空間，空調應採用下列何種系統才容易達成目標？",{"number":40,"session":7,"stem":41},27,"下列何者不是空調箱內部的構成組件？",{"number":43,"session":7,"stem":44},28,"下列何種建築材料的熱傳導係數最低？",[46,49,52,55,58],{"number":10,"session":47,"stem":48},"114180","消防設備提高建築物安全性能的方式，下列敘述何者錯誤？",{"number":10,"session":50,"stem":51},"113190","根據省水標章管理辦法，下列敘述何者錯誤？",{"number":10,"session":53,"stem":54},"112190","某建商將規劃雨水收集回收之量能，目前已知基地日降雨量為 6.5 mm\u002F日，可集雨面積…",{"number":10,"session":56,"stem":57},"111180","有關燃燒學說之燃燒四面體，下列何者錯誤？",{"number":10,"session":59,"stem":60},"110180","關於大便器的敘述，下列何者錯誤？",1791863214260]