Environmental Engineering in CE Water filtration rate in a slow sand filter ranges from __________ litres/m²/hr. 1500 to 2500 100 to 200 4000 to 5000 10 to 20 1500 to 2500 100 to 200 4000 to 5000 10 to 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Photochemical smog is formed from automobile exhaust All of these Is harmful for crops and trees also besides causing eye irritation & asthma Appears only on sunny days By reaction of hydrocarbon & nitric oxide in presence of sunlight All of these Is harmful for crops and trees also besides causing eye irritation & asthma Appears only on sunny days By reaction of hydrocarbon & nitric oxide in presence of sunlight ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 160 135 105 185 160 135 105 185 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes Respiratory trouble All of these Irritation in eyes Poor visibility due to sky darkening Respiratory trouble All of these Irritation in eyes Poor visibility due to sky darkening ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Salt content in sea water is about __________ percent. 0.5 1 10 3.5 0.5 1 10 3.5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km. 15 6.5 0.05 1 15 6.5 0.05 1 ANSWER DOWNLOAD EXAMIANS APP
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