Waste Water Engineering At the junction of sewers Top of smaller sewer is kept lower Tops of both the sewers are at the same level None of these Top of larger sewer is kept lower Top of smaller sewer is kept lower Tops of both the sewers are at the same level None of these Top of larger sewer is kept lower ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Self-cleansing velocity is Velocity at dry weather flow Velocity of water in a pressure filter Velocity at which no accumulation remains in the drains Velocity of water at flushing Velocity at dry weather flow Velocity of water in a pressure filter Velocity at which no accumulation remains in the drains Velocity of water at flushing ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes need be checked for Minimum flow Maximum flow Both A and B None of these Minimum flow Maximum flow Both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Boiling Adding potassium permanganate Adding sulphuric acid Phenol-di-sulphuric acid Boiling Adding potassium permanganate Adding sulphuric acid Phenol-di-sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Less than 0.1 mm Greater than 0.1 mm Less than 0.05 mm Less than 0.01 mm Less than 0.1 mm Greater than 0.1 mm Less than 0.05 mm Less than 0.01 mm ANSWER DOWNLOAD EXAMIANS APP
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