Q.1
14 Marks(a)
Give the classification of microorganisms.
(b)
Enlist and explain different sources of surface water.
(c)
Explain different type of water demands in brief.
Gujarat Technological UniversitySummer 2025 examination
GTU 2150603 Environmental Engineering Summer 2025 Question Paper & PDF
B.E. · Civil Engineering · Semester 5 · Subject code 2150603
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Write short note on sewage sickness.
(b)
The 5 days 20°C BOD of sewage is 160mg/litre. Calculate its 2 days 30°C BOD. Assume the deoxygenation constant at 20°C KD(20°) as 0.1/day.
(c)
Explain the factors affecting self purification capacity of the river.
OR
(c)
Explain with sketch DO Sag curve.
Q.3
14 Marks(a)
What is pH? How is pH measured?
(b)
Write short note on water borne diseases.
(c)
What do you mean by temporary and permanent hardness. Explain in detail.
OR
(a)
Explain different types of solids found in wastewater
(b)
Give sanitary significance of following parameters, with reference to drinking water: 1. Nitrate 2. Fluoride 3. Mercury
(c)
Explain different physical and chemical characteristics of wastewater.
Q.4
14 Marks(a)
Define: 1. Sullage 2. Soil pipe 3. Nahni trap
(b)
Explain land fill method used for disposal of solid waste.
(c)
Enlist the principles of house drainage system.
OR
(a)
Define composting method for disposal of solid waste.
(b)
What is solid waste management. Explain in detail.
(c)
Explain different types of plumbing systems used for house drainage.
Q.5
14 Marks(a)
How is noise measured? Describe method of controlling noise pollution.
(b)
What is Primary and secondary pollutants.
(c)
Enumerate different air pollution control devices and functioning cyclone precipitator.
OR
(a)
State the sources of noise pollution.
(b)
Explain different equipments used for control of particulate matter.
(c)
What is the Environmental (Protection) Act-1986, what are its objectives?
More Environmental Engineering papers
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
Other Semester 5 subjects
BE Civil
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About this paper
Official Gujarat Technological University (GTU) examination paper for Environmental Engineering (Summer 2025, B.E. · Civil Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.