Daily Question June 18, 2015 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers
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11. In the creation of equal sound level plots, which of the following statements about WECPNL are correct? ( ) A. Generally, there are isochrones at 65dB, 70dB, 75dB, 80dB, and 85dB. B. Generally, there are isochrones at 60dB, 65dB, 75dB, 80dB, and 90dB. C. Generally, there are isochrones at 70dB, 75dB, 80dB, 85dB, and 90dB. D. Generally, there are isochrones at 75dB, 80dB, 85dB, and 90dB. Explanation: According to the “Guidelines for Environmental Impact Assessment – Sound Environment,” contour maps showing the weighted equivalent continuous perceived noise level (LWECPN) at 70dB, 75dB, 80dB, 85dB, and 90dB should be provided on 1:50000 or 1:10000 scale topographic maps. Correct answer: C
In the creation of equal-loudness contour plots, which of the following statements about WECPNL is correct? ( ) C. Generally, there are isochrones at 70dB, 75dB, 80dB, 85dB, and 90dB
In the creation of equal-loudness contour plots, which of the following statements about WECPNL is correct? ( ) C. Generally, there are isochrones at 70dB, 75dB, 80dB, 85dB, and 90dB
C. Generally, there are isochrones at 70dB, 75dB, 80dB, 85dB, and 90dB
In the creation of equal-loudness contour plots, the correct statements regarding WECPNL are (C).
C. Generally, there are isochrones at 70dB, 75dB, 80dB, 85dB, and 90dB