Environmental Engineering Period of cleaning of slow sand filters is about 1 - 2 year 10 - 12 days 24 - 48 hours 2 - 3 months 1 - 2 year 10 - 12 days 24 - 48 hours 2 - 3 months ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if The depth of tank is decreased Particle size is decreased None of these The surface area of tank is increased The depth of tank is decreased Particle size is decreased None of these The surface area of tank is increased ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is Copper Reinforced cement concrete Steel Cast iron Copper Reinforced cement concrete Steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total hardness total alkalinity Total alkalinity Total hardness Non carbonate hardness Total hardness total alkalinity Total alkalinity Total hardness Non carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is To increase it To decrease it Fluctuating Nil To increase it To decrease it Fluctuating Nil ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable method of forecasting population for a young and rapidly increasing city is Geometrical increase method Incremental increase method Graphical method Arithmetical increase method Geometrical increase method Incremental increase method Graphical method Arithmetical increase method ANSWER DOWNLOAD EXAMIANS APP
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