This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Municipal Solid Waste”. 1. The process of burning of municipal solid waste at high temperature is called ____________ a) Incineration b) Composting c) Land filing d) Shredding 2. Which of the following is a biodegradable waste? a) Polythene bags b) Synthetic fiber … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Construction of Imhoff Tank”. 1. Which of the following is represented by C in the following figure? Figure: Imhoff tank a) Outlet b) Digestion chamber c) Gas chamber d) Sedimentation chamber 2. In which of the following, the settling of solids takes … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Construction of Septic Tank”. 1. The disposal of sewage from the septic tank is done by which of the following? a) Clarifier b) Soak pit c) Aerated lagoon d) Lamp holes 2. The detention period of a septic tank is ___________ a) … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Oxidation and Stabilization Ponds”. 1. Which of the following is an anaerobic process for treating sewage? a) Oxidation pond b) Imhoff tank c) Oxidation ditch d) Rotating Biological Contactors 2. The minimum design depth of oxidation pond is ___________ a) 0.3m b) … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Sludge Thickening, Sludge Dewatering”. 1. The design solid surface loading in an activated sludge process is ___________ a) 10 kg/m2/day b) 25 kg/m2/day c) 15 kg/m2/day d) 35 kg/m2/day 2. Which of the following plant nutrient is not found in municipal sewage? … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Design of Activated Sludge Plant”. 1. Which of the following is the correct expression of the aeration period in hours? a) V/Q b) 24V/Q c) V/24Q d) Q/V 2. Which of the following activated sludge process has minimum food to microorganism ratio? … Read more
This set of Environmental Engineering online test focuses on “Digestion of Sludge, Sludge Digestion Tank”. 1. How many stages are there in the sludge digestion process? a) 2 b) 3 c) 4 d) 5 2. The form of sludge which is free from pathogenic bacteria is ___________ a) Undigested sludge b) Digested sludge c) Primary … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers focuses on “Mechanical Aeration System, Treatment of Sludge”. 1. The device used for the aeration in the combined aerator is ___________ a) Header pipe b) Diffuser plate and paddles c) Cone with spiral vanes d) Diffuser plate 2. The detention period of the Sheffield mechanical … Read more
This set of Environmental Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Diffused Air System”. 1. Which of the following is called as air diffusion method? a) Activated sludge aeration b) Diffused air aeration c) Mechanical aeration d) Combined aeration 2. The maximum quantity of air required in diffused aerator is ______ m3 per … Read more
This set of Environmental Engineering Quiz focuses on “High Rate Trickling Filter and Secondary Clarifier”. 1. The maximum removal of suspended and dissolved impurities from the sewage is? a) 65 b) 70 c) 92 d) 99 2. The color of the secondary sludge produced from the high rate trickling filter is ___________ a) Gray b) … Read more
