Advanced Wiring第 57 / 110 题
A location made hazardous by combustible dust is classified as which class?
a.Class II
b.Class I
c.Class III
d.Class IV
解析
Class II locations are those hazardous because of the presence of combustible dust.
法律依据: 2023 NEC 500.5(C)免费刷完整 110 道题库 — 无需注册。
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