Gujarat Technological UniversitySummer 2023 examination

GTU 3150616 Pipeline Engineering Summer 2023 Question Paper & PDF

B.E. · Civil Engineering · Semester 5 · Subject code 3150616
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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.1

14 Marks
(a)
3 marks

Find the most economical diameter of the rising main to handle discharge of 250 m³/hr.

(b)
4 marks
Explain how a new pipeline is tested for leakage and pressure
(c)
7 marks

Find the diameter of a rising main for flow of 10 MLD and calculate the horse power required for pumps to send water from source to WTP which is having difference in water surface level of 12 m. Distance between the source and WTP is 4 km. Take coefficient of friction as 0.004. Assume velocity through rising main as 1.8 m/sec and combined efficiency of pump and motor as 80%.

Q.2

14 Marks
(a)
3 marks

What is major loss in the pipeline? State different formulas which can be used for its estimation.

(b)
4 marks
What is corrosion? Explain the factors affecting the rate of corrosion.
(c)
7 marks

What is water audit? How it is done? Explain different types of apparent and real losses considered in the water audit.

(c)
7 marks

Explain the factors responsible for water hammer. How the problem of water hammer can be controlled?

Q.3

14 Marks
(a)
3 marks
Write a short note on cement lined cast iron pipe.
(b)
4 marks
Explain dead end system used for distribution of water.
(c)
7 marks

Explain the steps to be followed for determining the capacity of an elevated service reservoir.

(a)
3 marks

Design an orifice which is to be provided in the side of the tank. The head of the water above the top and the bottom edge of the orifice is 3.5 m and 4.7 m respectively. The discharged is 3m³/sec. Take Cd as 0.60.

(b)
4 marks

Explain different non destructive methods used for testing the strength of the weld.

(c)
7 marks

Enlist different types of valves used in the water supply scheme. Explain any four of them with neat sketch.

Q.4

14 Marks
(a)
3 marks

Find the wall thickness of a pipe having outer diameter 600mm. The working pressure is 18 kg/cm². Take allowable hoop stress as 220 kg/cm². Take corrosion allowance as 1.6 mm.

(b)
4 marks
What is thrust block? When and where it is needed?
(c)
7 marks

What is Rehabilitation of pipe? Why it is needed? Explain any one method used for rehabilitation of water supply pipes.

(a)
3 marks

What is flow meter? Enlist different types of flow meters used in distribution system.

(b)
4 marks

Enlist different types of leak detection system used for detecting leakages. Explain any one of them in detail.

(c)
7 marks
Explain different types of lining and coating used for pipelines.

Q.5

14 Marks
(a)
3 marks
Differentiate between continuous and intermittent water supply system.
(b)
4 marks
Explain different types of bends used in the distribution systems.
(c)
7 marks
Write a short note of EPANET software.
(a)
3 marks

A city with a population of 100000 is to be supplied water at the rate of 160 lpcd. Find out the average and maximum discharge. Assume peak factor as 1.8.

(b)
4 marks

What is design period? What the factors affecting selection of design period of the different components of the water supply network?

(c)
7 marks
Explain different methods used for forecasting the population.

More Pipeline Engineering papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Winter 202470 marks · 5 questions
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About this paper

Official Gujarat Technological University (GTU) examination paper for Pipeline Engineering (Summer 2023, 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.

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