Environmental Engineering The main disadvantage of cement concrete sewers is Less strength Difficulty in transportation due to heavy weight Less life Difficulty in construction Less strength Difficulty in transportation due to heavy weight Less life Difficulty in construction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is Same Smaller Larger None of these Same Smaller Larger None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The treatment of water with bleaching powder is known as Hypo-chlorination Pre-chlorination De-chlorination Super chlorination Hypo-chlorination Pre-chlorination De-chlorination Super chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewerage system is designed for Maximum flow only Minimum flow only Average flow only Maximum and minimum flow Maximum flow only Minimum flow only Average flow only Maximum and minimum flow ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The process of lagooning is primarily a means of 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 Reducing the excessive flow in sewers Disposing of sludge Increasing flow of sewage through imhoff tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period in coagulation tanks is usually kept as 1 to 2 minutes 2 to 6 days 2 to 6 hours 30 to 45 minutes 1 to 2 minutes 2 to 6 days 2 to 6 hours 30 to 45 minutes ANSWER DOWNLOAD EXAMIANS APP
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