Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 02 to 0.3 5 to 10 2 to 3 0.001 to 0.01 02 to 0.3 5 to 10 2 to 3 0.001 to 0.01 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Sr-90 Au-198 Ra-226 I-131 Sr-90 Au-198 Ra-226 I-131 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by None of these Quenching of hot coke Filtration and recycling for cooling coke oven gas Discharging in the river stream None of these Quenching of hot coke Filtration and recycling for cooling coke oven gas Discharging in the river stream 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. 30 70 3 100 30 70 3 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The progressive warming up of the earth's surface is mainly due to the Thickening of ozone layer Blanketing effect of CO₂ in the atmosphere De-forestation Automobile exhaust Thickening of ozone layer Blanketing effect of CO₂ in the atmosphere De-forestation Automobile exhaust ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Dissolved gases Turbidity Color Hardness Dissolved gases Turbidity Color Hardness ANSWER DOWNLOAD EXAMIANS APP
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