Environmental Engineering Cleaning is done by (i) Scraping and removal in filters slow sand (ii) Back washing in slow sand filters (iii) Scraping and removal in filters rapid sand (iv) Back washing in rapid sand filters The correct answer is (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process in which the chlorination is done beyond the break point is known as Break point chlorination Pre-chlorination Super chlorination Post chlorination Break point chlorination Pre-chlorination Super chlorination Post chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of Reducing the excessive flow in sewers Disposing of sludge Increasing flow of sewage through imhoff tanks Increasing the capacity of storage reservoirs Reducing the excessive flow in sewers Disposing of sludge Increasing flow of sewage through imhoff tanks Increasing the capacity of storage reservoirs ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Chlorine demand of water is equal to Difference of applied and residual chlorine Sum of applied and residual chlorine Applied chlorine Residual chlorine Difference of applied and residual chlorine Sum of applied and residual chlorine Applied chlorine Residual chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Settling velocity increases with Temperature of liquid Specific gravity of solid particles Depth of tank Size of particles Temperature of liquid Specific gravity of solid particles Depth of tank Size of particles ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Hardy cross method of analysis of distribution system (i) Involves successive trials (ii) Takes economic aspects into account (iii) Is time consuming (i) and (iii) All are correct (i) and (ii) Only (i) (i) and (iii) All are correct (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
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