Waste Water Engineering If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains Hydrogen sulphide Methane Carbon dioxide Oxygen Hydrogen sulphide Methane Carbon dioxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Phenol-di-sulphuric acid Boiling Adding potassium permanganate Adding sulphuric acid Phenol-di-sulphuric acid Boiling Adding potassium permanganate Adding sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains Oxygen Hydrogen sulphide Methane Carbon dioxide Oxygen Hydrogen sulphide Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of Hydrogen sulphide gas Petrol vapours Carbondioxide gas Methane gas Hydrogen sulphide gas Petrol vapours Carbondioxide gas Methane gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In olden days the type of section adopted in trunk and out fall sewers was Circular shaped Parabolic shaped Horse shoe shaped Egg shaped Circular shaped Parabolic shaped Horse shoe shaped Egg shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 313.5 cm/sec 413.5 cm/sec 500 cm/sec 213.5 cm/sec 313.5 cm/sec 413.5 cm/sec 500 cm/sec 213.5 cm/sec ANSWER DOWNLOAD EXAMIANS APP
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