Model Question Bank

B.Tech.-1^st Year

Environment & Ecology (CH-101)

         Give a brief idea about Environmental impact Assessment (EIA)

         What are the basic concepts related to environmental perspective?

         Mathematics of population growth.

Air Pollution

         Explain Stefan Boltzman's law and it's application for explaining the green house effect.

         How many ways pollutants of the environment can be classified? What are major sources of air pollutant & its consequences.

         Explain the term Green House Effect. Name the green house gases in the atmosphere. Mention the impact of Green House Effect on global climate, agriculture, and marine food & sea water level. Why is existence of life not possible in Venus?

         Write the chemical composition & all possible structures of CFC-114.

         What is the CFC number for CCl₂FCClF₂

         What is adiabatic lapse rate and ambient lapse rate?

         What are the composition & structure of the atmosphere?

         Explain the relationship between ambient & adiabatic lapse rate and atmospheric stability.

         Define - coning, looping, fumigation, lofting fanning plume, and sub-adiabatic, super-adiabatic, particulate matter.

         Hg₂²⁺ low toxic where as Hg²⁺ is fairly high toxic-explain.

         Give the brief idea about i) cyclone separator ii) Bag house iii) Venturi scrubber iv) ESP v) catalytic converter.

         Write a short note on photochemical smog & London smog.

         A rising plume of stack gas has a temperature of 1000 ^oC at 200m.Assuming dry adiabatic lapse rate, determine the temperature at 800m.

         Define maximum mixing depth & ventilation coefficient.

         Write down sources & the toxic effects of CO, Hg, SO₂, and Pb.

         What do you mean by earth's albedo? With the help of Stefan-Boltzman law explain the advantage of GHE.

         Why does stratosphere show positive lapse rate. Explain temperature inversion.

         What is Montreal Protocol & the most important replacement of CFC?

         Discuss the role of ozone in the atmosphere. How is it formed & destroyed in the

atmosphere? What are the harmful effects of depleted ozone layer?

         Describe the impact of green house gases on ozone layer.

         Prove that -=

          

Water Pollution

         What are the causes of water pollution?

         What do you mean by cultural eutrophication?

         How can COD be determined experimentally?

         Define biomagnification, hydraulic gradient,thermal pollution

         Write a short note on Trickling filter, Sludge treatment, RBC, Activated sludge.

         Draw a flow diagram for the treatment of wastewater.

         What are the purposes of secondary & tertiary treatment?

         What are the biochemical effects of As pollution?

         Discuss different mode of waste disposal.

         Name the antidote for As poisoning.

         What should be the criteria of drinking water?

         What is the significance of L₀ ,ultimate carbonaceous value?

         How can COD be used to quantify the non-biodegradable matter in water?

         What types of hazardous solid wastes are generated in India?

         Problems on BOD

 

 

Soil & Noise Pollution

         What are the cause of Soil & Noise Pollution? How will they be controlled?

         How much is a sound of 100 dB louder than 90 dB?

         Mention the hazardous effects of noise pollution on human health & migratory birds.

         Define noise. Mention two hazardous effects of noise pollution on human -

health. Suggest two methods of controlling noise pollution.

Ecology

         Define ecology, ecosystem, components of ecosystem, food chain.

         Describe the different food chain & ecosystem of aquarium, N₂, O₂, P, S-cycle.

         Describe the biochemical effects of i) Arsenic ii) Mercury.

         Write a short note on Trickling filter. How will you control soil pollution?