Fuels and Combustion MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fuels and Combustion, a fundamental topic in the field of Power Plant Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Fuels and Combustion MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Fuels and Combustion mcq questions that explore various aspects of Fuels and Combustion problems. Each MCQ is crafted to challenge your understanding of Fuels and Combustion principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Power Plant Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fuels and Combustion MCQs are your pathway to success in mastering this essential Power Plant Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fuels and Combustion. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Fuels and Combustion knowledge to the test? Let's get started with our carefully curated MCQs!

Fuels and Combustion MCQs | Page 3 of 50

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Q21.
With increase in calorific value of fuels, their adiabatic flame temperatures

a.

increase

b.

decrease

c.

remain unchanged

d.

may increase or decrease ; depends on the quantity of products of combustion

Discuss
Answer: (d).may increase or decrease ; depends on the quantity of products of combustion
Q22.
Coal tar fuel - 200 (CTF 200) is a mixture of

a.

pitch and creosote oil.

b.

light oil and pitch.

c.

anthracene and crecosote oil.

d.

solar oil and pitch.

Discuss
Answer: (a).pitch and creosote oil.
Q23.
Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³.

a.

4000

b.

2500

c.

6500

d.

10000

Discuss
Answer: (c).6500
Q24.
High pressure coal gasification is employed in __________ process.

a.

Lurgi

b.

Kopper-Totzek

c.

Winkler

d.

none of these

Discuss
Answer: (a).Lurgi
Q25.
Flue gas from the heating chamber of byproduct coke ovens is removed by

a.

forced draft fan

b.

induced draft fan

c.

steam ejector

d.

natural draft

Discuss
Answer: (d).natural draft
Q26.
Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because

a.

the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot.

b.

it reduces its calorific value tremendously.

c.

it reduces its flame temperature tremendously.

d.

there are chances of explosion during preheating.

Discuss
Answer: (a).the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot.
Q27.
Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O) ?

a.

Blast furnace coke

b.

Low temperature coke

c.

Anthracite coal

d.

Sub-bituminous coal

Discuss
Answer: (b).Low temperature coke
Q28.
Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.

a.

1000

b.

4000

c.

6000

d.

8000

Discuss
Answer: (b).4000
Q29.
Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec.

a.

0.5

b.

10

c.

50

d.

500

Discuss
Answer: (b).10
Q30.
Which of the following is used for making the explosive 'TNT' ?

a.

Benzol

b.

Toluene

c.

Pyridine

d.

Cerosote

Discuss
Answer: (b).Toluene
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