Waste Water Engineering A manhole is classified as shallow if its depth is between 0.7 to 0.9 m 0.5 to 0.7 m 0.4 to 0.5 m 0.9 to 1.20 m 0.7 to 0.9 m 0.5 to 0.7 m 0.4 to 0.5 m 0.9 to 1.20 m 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 Less than 0.05 mm Less than 0.01 mm Greater than 0.1 mm Less than 0.1 mm Less than 0.05 mm Less than 0.01 mm Greater than 0.1 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most efficient cross-section of sewers in a combined sewerage system is Rectangular Parabolic Circular New egged Rectangular Parabolic Circular New egged ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 2 3 1.5 2.5 2 3 1.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in Two to three hours One hour Six hours Three to four hours Two to three hours One hour Six hours Three to four hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a peak discharge of 0.0157 cumec, with a velocity of 0.9 m/sec, the diameter of the sewer main, is 12 cm 10 cm 15 cm 18 cm 12 cm 10 cm 15 cm 18 cm ANSWER DOWNLOAD EXAMIANS APP