Environmental engineering questions with answers
126 multiple-choice questions. Open any question for its answer and explanation.
- The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is
- Residual chlorine in water is determined by
- The means of access for inspection and cleaning of sewer line is known as
- The phenolic compounds in public water supply should not be more than
- The water carriage system of collection of waste product
- In chlorination, with the rise in temperature of water, death rate of bacteria
- The characteristics of fresh and septic sewage respectively are
- An egg shaped section of sewer
- Most suitable section of sewer in separate sewage system is
- A sewer that receives the discharge of a number of house sewers is called
- Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the
- The hourly variation factor is usually taken as
- Disinfection of water results in
- If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to
- Laying of sewers is usually done with the help of
- The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by
- As compared to shallow wells, deep wells have
- As compared to cast iron pipes, steel pipes are
- In water treatment, rapid gravity filters are adopted to remove
- In facultative stabilization pond, the sewage is treated by
- The gas from sludge digestion tank is mainly composed of
- The maximum efficiency of BOD removal is achieved in
- The minimum and maximum diameters of sewers shall preferably be
- The biochemical treatment of sewage effluents is essentially a process of
- Sewerage system is usually designed for