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English Translations » 【公用配套及基建圈】 » [Civil Engineering Version] Daily Question 20180407

[Civil Engineering Version] Daily Question 20180407

2018-04-07View Original

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When measuring noise, it is commonly expressed in terms of the A sound level； May I ask with which standard is the A sound level measured? a. It mainly measures sounds above 500 Hz. b. It measures sounds across the entire frequency range. c. It measures low-frequency sounds. d. It measures high-frequency sounds. Answer: a
Reply #22018-04-07
　a. It mainly measures sounds above 500 Hz
Reply #32018-04-07
a. It mainly measures sounds above 500 Hz
Reply #42018-04-07
When measuring noise, it is commonly expressed in terms of the A sound level； May I ask with which standard is the A sound level measured? a. It mainly measures sounds above 500 Hz. b. It measures sounds across the entire frequency range. c. It measures low-frequency sounds. d. It measures high-frequency sounds
Reply #52018-04-07
a. It mainly measures sounds above 500 Hz
Reply #62018-04-07
　a. It mainly measures sounds above 500 Hz
Reply #72018-04-07
　　a. It mainly measures sounds above 500 Hz

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Translated at 2026-07-23 11:50:45

Original: https://bbs.hcbbs.com/thread-1956672-1-1.html

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