Environmental Engineering (KCE-603) - AKTU Question Paper 2022-23
B.Tech · Semester 6 · Free PDF Download
This is the official AKTU Environmental Engineering Previous Year Question Paper for B.Tech Semester 6, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
Course:B.Tech
Semester:Semester 6
Session:2022-23
University:AKTU / UPTU
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Questions Asked in 2022-23
Environmental Engineering (KCE-603) — extracted question text
Section AAttempt all questions in brief. 2 x 10 = 20
- aWhat is a spigot and socket joint?
- bDefine reflux and relief valves
- cWhat is coincident draft?
- dWrite Hazen Williams formula with usual notations
- eWhat is Theoretical Oxygen demand?
- fHow will you measure turbidity of river water?
- gWhat are various forms of chlorine?
- hWrite various forms of nitrogen present in sewage water. (i) What is the role of algae in aerobic pond? (j) Differentiate between attached growth and suspended growth system
Section BAttempt any three of the following: 10x3=30
- aDiscuss various factors that affect the water demand
- bDifferentiate between storage and service reservoirs. Explain unit operations
- c(i) A sample of wastewater has an ultimate BOD of 2 80 mg/L and a 5 ‐day BOD at 20 0C of 240 mg/L. Calculate 20 ‐day BOD at 20 0C of this sample. (ii)A BOD 5 of waste water is determined to be 150 mg/l at 20º C. The k value is known to be 0.23 per day. What would be the BOD 8 if the test were run at 15ºC
- dDiscuss advantage and disadvantage of soda lime pro cess and ion exchange methods of water softening
- eDesign a conventional grit chamber unit for a design sewage flow of 120MLD. Assume suitable-data wherever necessary. Draw a schematic diagram of the unit
Section CAttempt any one part of the following: 10x1=10
- aOver the two periods, each of 20 years population of a town increased from 30000 to 170000 to 300000. Find (i) Saturation population, (ii) Coefficients of logistic equation, and (iii) Expected population in next 20 years
- bWhat are gravity and pressure conduits? Why pressur e conduits are most commonly used for conveying water from distant sour ces to the town for supply?
- aWhat are various methods of layout of distribution system? Explain any two and their advantages
- bWrite a note on distribution reservoirs. Where are these located ? How do you determine the storage capacity of balancing reservoir by mass curve method for 24 hours pumping?
- bDetermine the most probable number of coliforms. A standard multiple fermentation test is run on a sample of water from a surface stream. The results of analysis for the confirmed test are shown below: Size of samples (ml) No. of positives Table : MPN index for various combination of positive results when 5 test tubes are used per dilution (10ml, 1 ml, 0.1 ml) Combination of positives MPN index/100 ml
- bDesign a plain sedimentation tank for an average fl ow of water 250m 3/hr. The minimum size of particle to be removed 0.02 mm and expected performance of tank may be taken as ‘good’. Kinematic viscosity of water at 20° C = 1.01 × 10 -6 m2/s and specific gravity of particle = 2.65
- bExplain the working of UASB reactor
Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.
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