Theory questions of environmental engg by mohdafzal180991


									CHAPTERE-1: environmental pollution and control
   Q1)   Define environment.
   Q2)   What is meant by ecosystem? State its type.
   Q3)   what is meant by environmental pollution? State its type.
   Q4)   what are the causes of pollution?
   Q5)   Explain in brief effects of pollution.
   Q6)   List any four laws related to environmental pollution.
   Q7)   What step will you take to control the pollution?

CHAPTER-2: public water suply
   Q1) State the permissible limits for turbidity, Ph, chloride and total hardness in water.
   Q2) what is meant by coagulation? Name four common used coagulation.
   Q3) List eight types of pipes used for conveyance of water.
   Q4) Draw labeled sketch of an ESR.
   Q5) A water supply is to be proposed from an earthen dam. Suggest a suitable intake structure and
       draw a labeled sketch of the same.
   Q6) State four forms of chlorination. Explain break point chlorination.
   Q7) Draw a labelled sketch of air relief valve provided on water main
   Q8) State four advantages of R.C.C. pipes over other pipes.
   Q9) define the following terms Ph turbidity, MPN Standard colour cum.
   Q10) What do you understand by plain chlorination, post chlorination, super chlorination, and
   Q11) Draw labelled sketch of pressure relief valve and flanged pipe joint.
   Q12) Compare dead end system and grid iron system of layout for distribution system.
   Q13) Write the names of various intake works which selecting site for intake structure.
   Q14) what is water conservation? Why it is necessary? State its importance.
   Q15) explain the procedure for determination of total solids, dissolved solids and suspended solids.
   Q16) Draw a neat sketch of hopper bottom sedimentation tank. Explain its working.
   Q17) Differentiate between slow sand filter and rapid sand filter on any four points.
   Q18) Draw a neat sketch of schematic arrangement of water supply shceme.
   Q19) which are the methods of distribution.
   Q20) Explain with neat sketch working of rapid sand filter.
   Q21) Write one function of sluice valve, air relief valve, pressure relief valve and non return
   Q22) State gravity and pumping system of distribution of water.
   Q23) What is ground water recharging.
   Q25) Explain the objectives of aeration.
   Q26) Define coagulation. Why it is necessary? Give names of two coagulation.
   Q27) Define – Prechlorination, Dechlorination, break point chlorination and super chlorination.
   Q28) State the necessity of importance of low cost water treatment in rural areas.
   Q29) Compare the R.C.C pipes and PVC pipes used for conveyance of water.
   Q30) Write the function of following component of water supply scheme.
     1. Intake structure
     2. Jack well
     3. Rising main
     4. Treatment plant
Q31) Draw neat sketches of
     1. Spigot and socket joint
     2. Flanged joint
Q32) why the elevated storage reservoirs are preferred than ground storage reservoirs. Discuss in
Q33) which precaution will you take while collecting the sample for bacteriological test of water?
Q34) Enlist the four objects of aeration.
Q35) State the function, use and location of air relief valve. Draw a neat sketch of it.
Q36) State the factors affecting the location of a intake in water supply shceme.
Q37) Give the acceptable limit of the following for porable water.
     1. Hardness            2. BOD        3. Total solids        4. PH
Q38) Explain the principle behind sedimentation with coagulation.
Q39) Enlist the different form of chlorination. Explain ‘break point chlorination’ with help of graph.
Q40) Name the different types of pipes used for conveyance of water. State the advantages of G.I.
Q41) Write down the advantages of combine gravity and plumbing system.
Q42) State two objectives of water supply shceme.
Q43) State any four factors governing location of intake well.
Q44) State various precaution to be taken and information to be placed while collecting water
     Sample for biological examination.
Q45) Differentiate between rapid sand filter and slow sand filter with reference to
      1. Rate of filtration 2. Quality of wash water
     3. Period of cleaning 4. Depth of bed for gravel and sand
Q46) State any two advantages and disadvantages of dead end type layout of distribution system.
Q47) State advantages and disadvantages of gravitational supply system.
Q48) Define process of filtration of water. State the various filter media used for filtration.
Q49) what is disinfection? Enlist any two disinfection used in water purification.
Q50) Name any four types of pipe joint.
Q51) Draw a schematic arrangement of water supply shceme.
Q52) Enlist the various method of aeration? Explain principle of working and objet of any one of them
     With neat sketch.
Q53) Explain the gravity method of distribution system with neat sketch.
Q54) State various types of pipe joint, explain objects of each.
Q55) List out in tabular form, at neat eight points to differentiate slow and rapid sand filter.
Q56) Explain working of rapid sand filter with neat sketch.
Q57) State function of
     1. Air relief valve      2. Non return valve
Q58) State permissible limits for following
     1. Hardness 2. Zinc 3. Arsenic 4. Turbidity in case of porable water
Q59) Define ‘Intake’. Draw a neat sketch of river intake.
Q60) Draw a flow diagram of water treatment plant.
Q61) State two advantages and disadvantages of dead end type layout of distribution system.
Q62)   Draw a neat sketch of spigot and socket joint.
Q63)   Name different types of intake.
Q64)   Enlist any four treatment units in water supply shceme.
Q65)    State advantages of alum as coagulant.
Q66)   What is difference between fill and draw type and continuous type sedimentation tanks.
Q67)   State the purpose of service reservoir.
Q68)   What is meant by variation in the rate of demand of water.
Q69)   What factors should be considered while deciding the location of intake structure? Explain in
Q70)   Define pH value and explain pH scale.
Q71)   Explain construction of slow sand filter with a neat sketch.
Q72)   Draw sketch of different layout of distribution system.
Q73)   State the quality standards of water for domestic purpose.
Q74)   Draw a neat sketch of flanged joint and sluice valve.
Q75)   List out various types of layout of distribution of water for a city. Explain any one of them in brief
       with neat labelled sketch.
Q76)   State different types of intakes provided for withdrawal of water from the source. State any four
       factors governing the location of intake structure.
Q77)   what are the precaution to be taken while sampling of water for analysis purpose.
Q78)   State the importance of residual chlorine in treated water. What are the different forms of chlorination.
Q79)   State the function of distribution reservoir.
Q80)   Name the different types of pipes used in water supply. Give the criteria for selection of these pipes

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