What is the exam pattern and passing mark for GTU Fuels and Combustion (3150509)?

The GTU theory examination carries 70 total marks with a duration of 2.5 Hours. Minimum passing criteria is 23 marks (33%). The paper consists of 5 main questions with official marking breakdown and internal choices.

Where can I download the official GTU 3150509 Winter 2023 question paper PDF?

The official GTU question paper PDF is linked directly from Gujarat Technological University's official examination archive. You can view the full paper online or download the original file.

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Gujarat Technological UniversityWinter 2023 examination

GTU 3150509 Fuels and Combustion Winter 2023 Question Paper & PDF

B.E. · Chemical Engineering · Semester 5 · Subject code 3150509

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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

What is coal mining? State the types of mining and basic system of production techniques for mining.

(b)

4 marks

Discuss about the measurement techniques for petroleum fractions.

(c)

7 marks

With neat sketch explain the drilling process of petroleum and natural gas.

Q.2

14 Marks

(a)

3 marks

What is carbonization? How it is being carried out? State the different types of carbonization.

(b)

4 marks

Briefly describe the gasification process for coal.

(c)

7 marks

Discuss the different types of coal combustion techniques.

(c)

7 marks

Name the methods to assess the quality of coal and explain any one in detail.

Q.3

14 Marks

(a)

3 marks

State the different types of refinery equipments along with their uses.

(b)

4 marks

Write a brief note on storage and handling of liquid fuel.

(c)

7 marks

What is dewaxing? Discuss the different types of dewaxing processes.

(a)

3 marks

Briefly explain the different reaction occur during the steam reforming.

(b)

4 marks

Discuss about the safety and handling of acetylene gas.

(c)

7 marks

What is water gas? Discuss the different reactions involved in the production of water gas.

Q.4

14 Marks

(a)

3 marks

List out the various characteristics of a good fuel.

(b)

4 marks

Explain the handling and storage of agro fuels.

(c)

7 marks

Classify the bio fuels. Discuss the production process, technologies and applications of bio fuels.

(a)

3 marks

Write down the basic chemical equations for complete combustion of fuel.

(b)

4 marks

Derive the equation for constant pressure adiabatic flame temperature process.

(c)

7 marks

A petrol sample was found to have 86% carbon and 14% hydrogen by mass. When used in an engine the air supply is 90% of that theoretically required for complete combustion. Assuming that all the hydrogen is burnt and that the carbon burns to carbon monoxide and carbon dioxide so that there is no free carbon left, calculate the percentage analysis of dry exhaust gases by volume.

Q.5

14 Marks

(a)

3 marks

List out the factors affecting the rate of combustion process.

(b)

4 marks

Briefly explain about flame structure, propagation and flammability limit.

(c)

7 marks

Determine the air–fuel ratio on both a molar and mass basis for the complete combustion of octane, C8H18, with

i)the theoretical amount of air and

ii)150% theoretical air (50% excess air).

(a)

3 marks

State any three industrial applications of batch and continuous furnaces.

(b)

4 marks

Explain the working of fluidized bed combustion process.

(c)

7 marks

Define enthalpy of combustion and formation. Derive the expression for the first law analysis of reacting system for the steady flow processes

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About this paper

Official Gujarat Technological University (GTU) examination paper for Fuels and Combustion (Winter 2023, B.E. · Chemical 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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