102台電雇用電工機械 - 考試
By Brianna
at 2013-06-24T15:38
at 2013-06-24T15:38
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
第21題:
單相5kVA之變壓器,其鐵損100W,滿載同損150W,在功率因素為1.0的情況下,16小時半載,
8小時無載,則全日效率為何?
A.93% B.95% C.97% D.99%
這題我怎麼算都是97%,有人可以幫我算一下嗎?差這題就滿分了,謝謝!
http://www.taipower.com.tw/UpFile/JobTest/1020623_Q03A.pdf
--
第21題:
單相5kVA之變壓器,其鐵損100W,滿載同損150W,在功率因素為1.0的情況下,16小時半載,
8小時無載,則全日效率為何?
A.93% B.95% C.97% D.99%
這題我怎麼算都是97%,有人可以幫我算一下嗎?差這題就滿分了,謝謝!
http://www.taipower.com.tw/UpFile/JobTest/1020623_Q03A.pdf
--
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