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 0.01 mm
Less than 0.1 mm
Less than 0.05 mm
Greater than 0.1 mm

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
Dilution method of disposing of sewage, is not preferred to

When the diluting water is having flow currents
When sewage is fresh
When diluting water is used for water supply near the point of sewage disposed
When diluting water has high dissolved oxygen content

ANSWER DOWNLOAD EXAMIANS APP