Environmental Engineering in CE Exposure to SO₂ containing chimney gases results in the Reduction in strength of leather & cloth Increased drying & hardening time of paints Acceleration of corrosion rates of metals All of these Reduction in strength of leather & cloth Increased drying & hardening time of paints Acceleration of corrosion rates of metals All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A masonry structure built below ground level, where biochemical reaction takes place due to anaerobic bacteria is called Cesspool Lagoon Septic tank Skimming mill Cesspool Lagoon Septic tank Skimming mill ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm. 0.1 25 1000 100 0.1 25 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dose of chlorine for disinfection of water is about __________ mg/litre of water. 0.01 0.1 1 0.3 0.01 0.1 1 0.3 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. 10⁵ 10⁹ 10¹⁵ 10² 10⁵ 10⁹ 10¹⁵ 10² 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
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