Civil Engineering MCQJE Level Civil Engineering
A field engineer is checking decibel scale. Which technical note should be accepted? Avoid the common trap that noise is measured in litres per second.
Environment and Pollution ControlNoise PollutionHARD
Choose the correct answer
A
noise has no health impact
B
sound level is commonly expressed in decibels
C
noise is measured in litres per second
D
decibel scale is linear in perceived loudness
Correct Answer
B. sound level is commonly expressed in decibels
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Noise pollution is assessed with sound-level metrics. Correct option: B.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.