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 39 of 50

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Q381.
Combustion of pulverised coal compared to the lumpy coal

a.

provides better control of furnace temperature.

b.

facilitates combustion with lower excess air.

c.

provides higher thermal efficiency & flame temperature.

d.

all (a), (b) & (c).

Discuss
Answer: (d).all (a), (b) & (c).
Q382.
The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always

a.

1

b.

< 1

c.

> 1

d.

unpredictable

Discuss
Answer: (c).> 1
Q383.
A coal with high __________ content, would ignite most easily.

a.

fixed carbon

b.

volatile matter

c.

ash

d.

oxygen

Discuss
Answer: (b).volatile matter
Q384.
KOH solution used in orsat apparatus absorbs

a.

CO₂

b.

SO₂

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
Q385.
Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal ?

a.

Vitrain

b.

Clarain

c.

Durain

d.

Fussain

Discuss
Answer: (a).Vitrain
Q386.
Which of the following is not a by-product fuel?

a.

Sewage gas

b.

Refinery gas

c.

Producer gas

d.

Bagasse

Discuss
Answer: (c).Producer gas
Q387.
White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is

a.

tar

b.

coke oven gas

c.

pitch

d.

pulverised coke

Discuss
Answer: (b).coke oven gas
Q388.
Too much of excess air in combustion results in high

a.

fuel consumption for the same heat load.

b.

stack gas temperature.

c.

percentage of oxygen in flue gases.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q389.
A fuel with high heat release rate will

a.

require smaller combustion chamber.

b.

have high calorific value.

c.

have high adiabatic flame temperature.

d.

none of these.

Discuss
Answer: (a).require smaller combustion chamber.
Q390.
Pick out the correct statement.

a.

Oxygen content decreases from lignite to bituminous coal as the coalification increases.

b.

The less the oxygen content, better is the coal, as it reduces the calorific value.

c.

With increase in oxygen content, moisture holding capacity of coal increases and the caking power decreases.

d.

all (a), (b) and (c)

Discuss
Answer: (d).all (a), (b) and (c)
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