Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 213.5 cm/sec 313.5 cm/sec 500 cm/sec 413.5 cm/sec 213.5 cm/sec 313.5 cm/sec 500 cm/sec 413.5 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Carbon dioxide Hydrogen sulphide Oxygen Methane Carbon dioxide Hydrogen sulphide Oxygen Methane ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is 1 hour and 30 minutes 1 hour 2 hours 30 minutes 1 hour and 30 minutes 1 hour 2 hours 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of H₂SO₄ HNO₃ HCl None of these H₂SO₄ HNO₃ HCl None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of minimum hourly flow to the average flow of sewage is 43832 43833 43834 43894 43832 43833 43834 43894 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The screens are fixed At an angle 30° to 60° to the direction of flow Perpendicular to the direction of flow None of these Parallel to the direction of flow At an angle 30° to 60° to the direction of flow Perpendicular to the direction of flow None of these Parallel to the direction of flow ANSWER DOWNLOAD EXAMIANS APP
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