SSC_JE_CE_Environmental Engineering Booster Quiz-5

The efficiency of sedimentation tank is

Which of the following represents the approximately overflow rate (liters/hours/m²) for the plain sedimentation tank?

The ratio between peak hourly water demand and maximum daily demand (m³/hr) is

Nitrates more than 45 mg/l in water lead to disease called :

Which one of the following is most important parameter for the removal of discrete particles in design of continuous flow rectangular sedimentation tank?

A sedimentation tank is to be designed to treat one lakh cum of water per day. If the settling velocity of the particles to be removed is 40 m/day then area of the tank required is?

A plain sedimentation tank has dimensions 100 x 50 x 3 m and receives a flow of 100000 m³/d. Calculate the surface overflow rate in m³/m²/day. Take density of particle = 2.65 g/cc and dynamic viscosity η = 1.02 x 10^-2 cm²/sec:

The maximum daily demand of a city is 12 x 10⁵ and the rate of filtration is 50 per litre per hour per m². What is the area of the filter?