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噪音與振動 CH3

Authored by Karen Chuang

Physics

University

Used 3+ times

噪音與振動 CH3
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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

下列何者非屬活塞式音響校正器特性?

易受大氣壓力變化影響

利用往復壓縮空氣產生音源

可產生多種頻率音源

僅能產生單一頻率音源

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

依據噪音能量疊加原理,監測音壓級比背景音量高出多少分貝時,背景噪音可忽略?

3

5

8

10

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

噪音劑量計的微音器高度應接近下列何位置為宜?

耳部

胸部

頭頂 

腰部

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

噪音計在下列哪一個頻率(赫) 之純音,以A、B及C權衡電網監測時,結果相同?

100

1000

2000

16000

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

下列何種權衡電網最具平坦特性?

A

B

C

F

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