Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Composting None of these Biological oxidation Incineration Composting None of these Biological oxidation Incineration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. Mercury Asbestos Cadmium Hydrogen sulphide Mercury Asbestos Cadmium Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Aggregates Smoke Powder Grit Aggregates Smoke Powder Grit ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 125 100 145 80 125 100 145 80 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels. 70 3 30 100 70 3 30 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10² 10⁵ 10¹⁵ 10⁹ 10² 10⁵ 10¹⁵ 10⁹ ANSWER DOWNLOAD EXAMIANS APP
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