Q1[8 Marks]Introduction
Define palatable and potable water with example.
ENCE 254Bachelor in Civil Engineering · Semester 42 Papers Available
Water Supply Engineering
Past examination question papers and complete curriculum syllabus for Water Supply Engineering (ENCE 254), Bachelor in Civil Engineering Semester 4 under Institute of Engineering (IOE), Tribhuvan University.
Sem 4 Subjects (8)View Full Semester Overview →
Past Question Papers (PDF)
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Most Frequently Asked Questions
Top recurring IOE board exam questions for Water Supply Engineering with verified mark schemes, formula notation, and recurrence frequency.
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Year-wise & Session-wise Exam Papers
Complete questions from each exam session (Regular & Back exams from 2082 to 2069) for Water Supply Engineering. Click any session paper to expand.
Showing 185 questions across 20 exam session papers
Institute of Engineering • 2083 Baishakh Board Examination
Q2[8 Marks]Sources of Water
What is the importance of understating yield in drinking water system?
Q3[8 Marks]Sources of Water
List the threats posed by climate change to spring water availability and recommend the corresponding conservation strategies in the hilly regions of Nepal.
Q4[8 Marks]Quantity of Water
Explain the significance of peak factor in water supply system.
Q5[8 Marks]Quality of Water
Explain the standard plate count method used to detect and quantify E. coli in public health laboratories.
Q6[8 Marks]Quality of Water
(a) Explain the importance of understanding diseases transmission route with examples. [4]
(b) A water sample has the total hardness of and carbonate hardness of both as . All the three bi-valent metallic ions causing hardness are same. Determine the non-carbonate hardness, alkalinity and concentration of bi-valent metallic ions.
Q7[4 Marks]Intakes
Justify the circumstances at which you would recommend dry and wet intakes.
Q8[8 Marks]Water treatment
Define the membrane filtration and electrodialysis process in water treatment.
Q9[8 Marks]Water treatment
Evaluate the performance behavior of plain sedimentation tank and sedimentation with coagulation.
Q10[8 Marks]Water treatment
A water treatment plant is disinfecting water using chlorine. According to Chick's Law, the inactivation of bacteria follows first-order kinetics. If the initial number of bacteria is and is reduced to after 5 minutes of contact with chlorine, calculate the disinfection rate constant and explain its environmental significance.
Q11[8 Marks]Water treatment
A town with a population of 38,000 in the year 2025 AD has a water supply rate of 150 lpcd. Determine the number and of the rapid sand filter for the design year 2045. Assume that annual population growth rate of the town as 4.5%.
Q12[8 Marks]Reservoirs and Distribution System
State the primary functions of District Metered Areas (DMAs) in a smart water distribution system.
Q13[8 Marks]Reservoirs and Distribution System
(a) A village has a design year demand of . The demand is to meet by continuous system. The water tapped from source is . The consumption pattern is as follows. Is balancing storage tank necessary? Calculate its capacity if necessary. The consumption pattern is as follows: [8]
| Time | Consumption |
|---|---|
| 5.00-7.00 | 25 |
| 7.00-12.00 | 35 |
| 12.00-17.00 | 20 |
| 17.00-19.00 | 20 |
| 19.00-5.00 | 0 |
b) Recommend water distribution systems for well-planned city and randomly developed city with justification considering technical points.
Q14[8 Marks]Conveyance of Water
Recommend the practicability of spigot and electrofusion pipe joints.
Group 'B' [7×4]
Q15[8 Marks]Pipe Appurtenances, Operation and Maintenance
Define fittings with examples. Justify the need of dismantling joints and flushing arrangements for pipeline.
Group 'C' [3×6]
Q16[8 Marks]Pipe Appurtenances, Operation and Maintenance
Write short notes on: (Any Two) [2x4]
a) Regular and emergency maintenance
b) Public stand post and their need
c) Flanged and expansion joint
d) Types of pipes and their uses
Q17[8 Marks]Mode of conveyance: Open channel and pressure flow
Justify the environmental significance of emerging pollutants.
Curriculum Syllabus & Course Topics
Sourced from TU curriculum portalChapter-wise Units & Micro-Syllabus Topics (8 Units)
1. Introduction
2. Water Quality Aspects
3. Quantity of Water
4. Selection of sources: Technical and legal considerations
5. Intakes
6. Treatment of Water
7. Reservoirs and Distribution System
8. Mode of conveyance: Open channel and pressure flow
2
Examination Scheme & Marks Distribution
Evaluation Structure
- Final Board Theory Exam: 60 Marks (Pass mark: 24)
- Internal Assessment: 40 Marks (Pass mark: 16)
- Practical / Lab Exam: 25 or 50 Marks (Continuous lab evaluation + viva, where applicable)
* This is the general current IOE 60/40 scheme; verify course-specific details in the syllabus above.
Exam Preparation Guidelines
- Review the 2 available past examination papers to identify recurring patterns, core problem types, and chapter weightage.
- Cross-reference key answers with official syllabus units, standard textbooks, and lecture notes.
- Structure answers with labeled diagrams, concise bullet points, and highlight final answers in numerical solutions.
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Curriculum Syllabus & Marking Scheme