Noise pollution is measured in decibels (dB) with reference to a standard sound intensity of the following magnitude 1 pico
watt per m².
The World Health Organization (WHO) defines noise above 65
decibels (dB) as noise pollution.
The minimum density (g/cc) of corrugated and semi-corrugated asbestos cement sheets considered acceptable for construction purposes by the Indian standard is:
The actual discharge of liquid through an orifice is determined by multiplying ideal discharge by a factor called coefficient of discharge. The coefficient of discharge is given by __________.
