
人因工程 CH13 噪音及其防制
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University
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Easy
Karen Chuang
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
依照美國OSHA 所訂之工作場所噪音暴露標準,以八小時加權平均(TWA)所規定之行動水準為:
80 dBA
85 dBA
90 dBA
95 dBA
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下有關噪音的敘述何者不正確?
(A) 噪音就是使人感到厭煩的聲音
(B) 噪音即為超過管制法規的聲音
(C) 兩個噪音源的音量強度相加即可得到合成音的強度
(D) 噪音也是一種污染
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下製程改變何者不能降低噪音?
以螺旋齒輪代替正齒輪
以研磨代替切片
以數個小撞擊代替一個大撞擊
以冷作代替熱作
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
噪音防制最積極有效的方法是哪一種?
阻斷噪音傳播的路徑
雙層玻璃及防音門之使用
耳塞與耳罩
降低噪音源的音量
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下對於聽力防護具的敘述何者不正確?
護具不會影響耳朵健康
護具可降低噪音強度,頻率愈高降低量愈多
人身防護具是噪音防制基本要提供的
耳罩保護效果一般優於耳塞
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
以下敘述何者不正確?
聲音在不同介質中傳播速度亦不同
高頻音所含能量較大,所以比低頻音傳得更遠
人們的耳朵對各種頻率聲音的敏感度不同
聲音是源自音源振動引起附近空氣分子移動所形成的壓力波
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當遮蔽音為1200Hz,強度分別為20、40、60、80 分貝時,其遮蔽效應最大者是在:
20分貝
40分貝
60分貝
80分貝
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