下列何者非屬接地之主要目的？(A)避免人員遭受電擊 (B)保持與大地等電位(C)保護電氣迴路避免過載 (D)避免靜電電荷之蓄積

問題詳情

45. 下列何者非屬接地之主要目的？
(A)避免人員遭受電擊
(B)保持與大地等電位
(C)保護電氣迴路避免過載
(D)避免靜電電荷之蓄積

參考答案

無參考答案

內容推薦

內容推薦

距某機械 4 公尺處測得噪音為 90 分貝，若另有一噪音量相同之機械併置一起，於原測量處測量噪音量約為多少分貝？(A) 90 (B) 93 (C) 96 (D) 120
為瞭解作業環境中有害因子之強度，並建立勞工暴露資料，應採下列何項措施？(A)作業環境測定 (B)低毒性取代高毒性 (C)工程改善 (D)有害物標示
白指症之症狀係由何種危害因子引起？(A)高低溫危害 (B)異常氣壓危害 (C)游離輻射危害 (D)振動危害
風險評估的基本方法，以簡單的公式描述為下列何者？(A)風險×暴露＝危害 (B)風險×危害＝評估 (C)危害×風險＝暴露 (D)危害×暴露＝風險
附圖一是西歐主要國家的分布圖。根據附圖一請回答第 1～5 題：【題組】北市公共自行車微笑單車 Youbike 合約於今年 2018 底到期，但市府並沒有 Youbike 相關文字、圖案的商標權所有
The flowers and plants were the most __________ arranged creations I have ever seen in this garde
He __________ murder since he was barely 18 as he accidentally killed someone during a fight.(A)
Presbyterians, Methodists, __________ Baptists are the prevalent Protestant congregations in many
如圖八所示，在水中的一顆氣泡，當光線自水中進入圓形狀空氣泡時，再從空氣泡到水中，則下列何者為最可能的路徑？ (A) A→C→D→E(B) A→C→D→F(C) B→C→D→E(D) B→C→D
This is what we have discussed today for this topic, and call __________ if you have questions so
After buying a new car for the eldest daughter, __________ adds a double garage to their house.(
When you order a copy of this newly published book, __________ include cash payment with your or
There are over 1,500 __________ in our campus and they could provide an opportunity for every stu
It is __________ common belief that a newspaper should have __________ obligation to seek out an
__________ the football season has not yet begun, __________ is overly anxious for information a
When John bumps up against a complex problem, he thinks back to a lesson he __________ in high s
It is difficult to become __________ because sometimes you have to avoid telling the truth due t
In April, __________ the snow has already melted in New York.(A) countless of (B) many of (C) muc
Today, some people argue that the easiest and simplest way to improve our democracy is to ______
In English, __________ letters are the “large” versions of the 26 alphabets, frequently used for
有一下射式閘門位於一寬 5m 的水平矩形渠道內，若已知閘門上游水深為 0m，其下游水深及流速分別為 0m 及 0m/s。假設底床摩擦力可忽略，試問閘門所受到的水平力之大小及方向為何？
To celebrate with it, we are going to have a party __________ the Dragon Boat Festival Day.(A) at
When teachers ask you to __________, they want to see you move from the particular to the genera
Look at those cars in the parking lot over there. __________ is really ugly, but ours is beautifu
My grandfather refuses to go to bed early, __________ I am afraid he is going to catch a bad col