Environmental Engineering Alkalinity in water is expressed as milligrams per litre in terms of equivalent Calcium hydroxide Calcium carbonate Magnesium carbonate Sodium carbonate Calcium hydroxide Calcium carbonate Magnesium carbonate Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used All of these For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of To increase the filtration rapid sand filters capacity of All of these For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of To increase the filtration rapid sand filters capacity of ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of 100 mg/liter 1 mg/liter 1000 mg/liter 10 mg/liter 100 mg/liter 1 mg/liter 1000 mg/liter 10 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of cement concrete sewers is Less strength Difficulty in transportation due to heavy weight Difficulty in construction Less life Less strength Difficulty in transportation due to heavy weight Difficulty in construction Less life ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Sulphuric acid Lime Sodium permanganate Copper sulphate Sulphuric acid Lime Sodium permanganate Copper sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewerage system is usually designed for 26 years 25 years 27 years 28 years 26 years 25 years 27 years 28 years ANSWER DOWNLOAD EXAMIANS APP
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