Gujarat Technological UniversityWinter 2023 examination

GTU 3150616 Pipeline Engineering Winter 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 10:30 AM – 1:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks

Using the population data given below, forecast the population of a town for the year 2031 using any three methods of population forecasting.

YearPopulation
198127000
199138000
200140000
201153000
(b)
4 marks
Differentiate between minor and major losses occurring in the pipe network.
(c)
7 marks

Find the diameter of a rising main for flow of 7.5 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 8 m. Distance between source and WTP is 2.5 km. Take coefficient of friction as 0.003 and minor losses around 1.0 m.

Q.2

14 Marks
(a)
3 marks

What is rising main? How you will find the most economical diameter of the rising main?

(b)
4 marks

Enlist different types of valves used in the distribution system. Explain any two of them with neat sketch.

(c)
7 marks

Explain different types of water demands which are to be considered while designing the water supply scheme of a town.

(c)
7 marks

Write a short note on concrete and cast iron pipes. Also state the advantages and the disadvantages of the same.

Q.3

14 Marks
(a)
3 marks

Design a clear water reservoir for storing water for a town having population of 50000.

(b)
4 marks
Explain the steps to be followed for laying the water supply lines.
(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

Find the wall thickness of a pipe having outer diameter 400mm. The working pressure is 16 kg/cm². Take allowable hoop stress as 200 kg/cm². Take corrosion allowance as 1.6 mm.

(b)
4 marks

Enlist different types of losses occurring in the water supply pipes. Also enlist different types of leak detection system.

(c)
7 marks
What is corrosion? Explain different methods used for control of corrosion.

Q.4

14 Marks
(a)
3 marks

Why flow meters are needed? Enlist the type of flow meters commonly used in water supply.

(b)
4 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 2.8 m and 3.8 m respectively. The discharged is 7.5m³/sec. Take Cd as 0.6

(c)
7 marks
Explain the different layouts of distribution system.
(a)
3 marks
Give the classification of orifice
(b)
4 marks
What is water audit? Why it is needed?
(c)
7 marks
Write a short note on hardy cross method used for analysis of pipe network.

Q.5

14 Marks
(a)
3 marks
Why thrust block is required at the bend?
(b)
4 marks
Differentiate between bend and elbow. Enlist different types of bend.
(c)
7 marks

What is water hammer? How the effect of the water hammer on the pipe network can be minimized?

(a)
3 marks
Differentiate between destructive and non destructive testing for the weld joint
(b)
4 marks
What is mitter bend? State advantages and disadvantages of miter bend.
(c)
7 marks

Enlist different types of welding. Explain in brief any two types of welding used for jointing the water distribution pipes.

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
Summer 202470 marks · 5 questions
Summer 202370 marks · 5 questions

Other Semester 5 subjects

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2150603
Environmental Engineering
2150608
Structural Analysis-II
3150610
Concrete Technology
3150611
Transportation Engineering

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About this paper

Official Gujarat Technological University (GTU) examination paper for Pipeline Engineering (Winter 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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