問題詳情
17.下列那項原因,不會造成同步發電機單機運轉時,發生跳脫現象?
(A)過負載
(B)短路
(C)電壓過低
(D)逆功率
(A)過負載
(B)短路
(C)電壓過低
(D)逆功率
參考答案
答案:D
難度:簡單0.896552
統計:A(1),B(0),C(2),D(26),E(0)
內容推薦
- The Bohr shift on the oxygen-hemoglobin dissociation curve is produced by changes in _____.(A) t
- 有關「船舶法」中「船舶航行」之規定敘述,下列何者「不遵循」該法之規定?(A)外國船舶,自中華民國港口裝貨,船舶載重超過證書所規定之限制者,不得航行(B)船舶依規定應重行勘劃載重線而未勘劃者,不得
- Short-term memory information processing usually causes changes in the _____.(A) brainstem (B) m
- 直流配電系統之 “無接點式電壓調整器”(No contact AVR;Automatic voltage regulator),其運作狀況為調整各發電機組之:(A)磁場電流(B)磁場轉速(C)電
- 網際網路(Internet)上共用的通訊協定(Communication protocol)為何?(A)Kerrnit(B)RS-232(C)TCP/IP(D)X modem
- 船員法所稱平均薪資,係指下列何者?(A)在公司最後三個月薪資總額除以三所得之數額(B)在船最後三個月薪資總額除以三所得之數額(C)在船最後四個月薪資之平均數額(D)在船最後六個月薪資總額除以六所
- 依據現行MARPOL公約附錄I之規範,下列何者不包括在特別海域內?(A)波羅的海海域(B)海灣海域(C)亞丁灣海域(D)渤海灣海域
- 長100 m,寬20 m之箱形船,以4 m等吃水(Even keel)浮於比重025之海水中,其重心高 =8 m。該船由船尾算起4 m處有一橫向水密艙壁,若艉艙部分損傷浸水後,則其每公分吃水
- 三相440 V AC 60 Hz船舶供電系統配備有3部同型額定容量1,000 kW柴油發電機,若僅使用第1號機組單機供電,並設定第2號機組為優先備便。今若負載達穩定910 kW時,試問該全自動配
- 正弦交流電的有效值等於其最大值的多少倍?(A)1/√3 (B) 1/√2(C) 1/3(D)1/2
內容推薦
- 逆功率繼電器保護的對象為:(A)電動機(B)負載(C)接岸電(D)發電機組
- The transduction pathway that activates systemic acquired resistance in plants is initially sign
- Which of the following statements about photosynthesis is correct?(A) The splitting of water yie
- The asexual production of seeds from a diploid cell, allow hybrid plants to pass on their desira
- In E. coli mating system, Hfr type could be a genetic donor and F-could be a genetic recipient.
- Which of the following techniques uses the amino acid sequences of polypeptides to predict a pro
- A flowering plant with a deleterious mutation in microsporogenesis would most likely _____.(A) f
- In the lactose operon of E. coli, which one is the description of the product of the lacI gene?(
- Which is NOT a microtubule-organizing center (MTOC)?(A) centrosome (B) basal body of cilia (C) mi
- 在主機遙控系統中,有關於正俥(Ahead)及倒俥(Astern)邏輯偵測的元件是:(A)凸輪軸(Cam shaft)的位置(B)換向閥(Reversing valve)的位置(C)俥鐘桿的位置(
- In which vertebrates is fertilization exclusively internal?(A) chondrichthyans, osteichthyans, a
- In DNA cloning experiments, which vectors can be keeping the largest DNA fragments?(A) Plasmid (
- Ⅱ.【單選題】51-75 題,每題 2 分,共計 50 分。答錯 1 題倒扣 0.5 分,倒扣至本大題零分為止,未作答,不給分亦不扣分。In many ways, the regulation
- If cells in the process of dividing are subjected to colchicine, a drug that interferes with the
- Which one is the correct description of community ecology?(A) Testing both biotic and abiotic fa
- 操俥位置在駕駛台(W/H)且主機在備便中,若主機停俥超過預設時間,當再次動俥時將會慢速運轉(Slow turning),其主要目的是:(A)為了主機的安全(B)測試主機的好壞(C)停俥太久不知主
- The mountain area of the Central Taiwan was deforested by the 921 earthquake in 2000 and has bee
- A researcher found a method she could use to manipulate and quantify phosphorylation and methyla
- Testosterone functions inside a cell by _____.(A) acting as a signal receptor that activates ion
- In muscular-skeletal systems, which one is the correct description?(A) Arthropod exoskeletons ar
- The term homoplasy is most applicable to which of the following features?(A) the legless conditi
- In human endocrine systems, which one is NOT correct description?(A) Metamorphosis in flatfishes
- An mRNA sequence is 5’-AUG-GGC-ACU-CAU-ACU-UAA-3’, where AUG is the start codon and UAA is the st
- When observing the skeleton of a snake, you see the remains of hip and hind leg bones associated
- In fungi, which one is the correct description?(A) Wildlife benefit from endophytes because the