18.HEPA(high efficiency particulate air)filter在每秒0.45 m的風速下,可過濾99.997%若干μm以上的顆粒?
(A)0.3
(B)0.25
(C)0.2
(D)0.1
答案:登入後查看
統計: A(1251), B(191), C(38), D(60), E(0) #416612
統計: A(1251), B(191), C(38), D(60), E(0) #416612
詳解 (共 3 筆)
#2351643
12.Laminar flow hood經過HEPA後的氣流速度,應為多少feet per minute(fpm),以維持hood之清淨度?
(A)40±10%
(B)65±10%
(C)100±20%
(D)150±20%
阿摩線上測驗: http://www.yamol.tw/item-12.Laminar+flow+hood%E7%B6%93%E9%81%8EHEPA%E5%BE%8C%E7%9A%84%E6%B0%A3%E6%B5%81%E9%80%9F%E5%BA%A6%EF%BC%8C%E6%87%89%E7%82%BA%E5%A4%9A%E5%B0%91fee..-1541352.htm#ixzz4nMJCSIAd
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