活動名稱
【解題達人! We want you!】
活動說明
阿摩站上可謂臥虎藏龍，阿摩發出200萬顆鑽石號召達人們來解題!
針對一些題目可能有疑問但卻缺少討論，阿摩主動幫大家尋找最佳解!
懸賞試題多達20萬題，快看看是否有自己拿手的科目試題，一旦你的回應被選為最佳解，一題即可獲得10顆鑽石。
懸賞時間結束後，只要摩友觀看你的詳解，每次也會得到10顆鑽石喔!
關於鑽石
如何使用:
- ✔懸賞試題詳解
- ✔購買私人筆記
- ✔購買懸賞詳解
- ✔兌換VIP
(1000顆鑽石可換30天VIP) - ✔兌換現金
(50000顆鑽石可換NT$4,000)
如何獲得:
- ✔解答懸賞題目並被選為最佳解
- ✔撰寫私人筆記販售
- ✔撰寫詳解販售(必須超過10讚)
- ✔直接購買 (至站內商城選購)
** 所有鑽石收入，都會有10%的手續費用
近期考題
為多少歐姆？
748. 下列何者較符合餐廳從業人員的實際工作職責？
(A)服務人員負責食譜的研發創新
(B)餐廳經理負責擬定餐廳的營業方針
(C)調酒員負責製作餐廳所需的麵包與甜點
(D)副主廚負責控管服務流程〔94統測〕
(A)服務人員負責食譜的研發創新
(B)餐廳經理負責擬定餐廳的營業方針
(C)調酒員負責製作餐廳所需的麵包與甜點
(D)副主廚負責控管服務流程〔94統測〕
【非選題】
【題組】(c) (10%) The logarithmic mean temperature difference ( the ratio of difference of the temperature difference between the two streams at end A and end B over [In(temperature difference between the two streams at end A)- In(temperature difference between the two streams at end B)]
1. A counter-flow double-pipe heat exchanger is to heat water from 30 ℃ to 90 ℃ at a rate of 1.2 kg/s. The heating is to be accomplished by heating liquid at 160℃ at a mass flow rate of 2 kg/s. The inner tube is thin-walled and has a diameter of 15 mm. If the overall heat transfer coefficient is 640 W/m2K, cp of water is 4.2 KJ/ kg K, cp of heating liquid is 5 kJ/kg K, please determine:
【題組】(c) (10%) The logarithmic mean temperature difference ( the ratio of difference of the temperature difference between the two streams at end A and end B over [In(temperature difference between the two streams at end A)- In(temperature difference between the two streams at end B)]