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 26 of 50

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Q251.
Which of the following constituents of a fuel does not contribute to its calorific value on combustion ?

a.

Hydrogen

b.

Sulphur

c.

Carbon

d.

None of these

Discuss
Answer: (d).None of these
Q252.
Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces

a.

higher amount of methane.

b.

lower amount of hydrogen.

c.

both (a) and (b).

d.

higher amount of both methane and hydrogen.

Discuss
Answer: (c).both (a) and (b).
Q253.
For long flame and easy ignition, the coal used should have

a.

high volatile matter

b.

low ash

c.

high calorific value

d.

high ash

Discuss
Answer: (a).high volatile matter
Q254.
Which of the following has the highest calorific value (kcal/Nm³) ?

a.

Carburetted water gas

b.

Gobar gas

c.

Natural gas

d.

LPG

Discuss
Answer: (d).LPG
Q255.
Naphthalene is used for making

a.

insecticides (e.g. moth balls).

b.

unsaturated polyesters.

c.

drug intermediates e.g. ฮฒ-naphthol.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q256.
The advantage of firing pulverised coal in the furnace lies in the fact, that it

a.

permits the use of high ash content coal.

b.

permits the use of low fusion point ash coal.

c.

accelerates the burning rate and economises on fuel combustion.

d.

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

Discuss
Answer: (c).accelerates the burning rate and economises on fuel combustion.
Q257.
A coal having higher volatile matter content, has lower

a.

smoking tendency on burning.

b.

coke oven gas yield on carbonisation.

c.

chance of catching fire during storage in open space.

d.

ignition temperature.

Discuss
Answer: (d).ignition temperature.
Q258.
Weathering of coal during storage causes

a.

reduction in coal size.

b.

increase in its friability.

c.

decrease in its caking capacity.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q259.
With increase in the temperature of carbonisation of coal

a.

hydrogen content of coke oven gas increases due to cracking of hydrocarbons.

b.

methane content in the coke oven gas decreases and carbon monoxide content increases.

c.

calorific value of the coke oven gas decreases due to cracking of hydrocarbons which is not compensated by increase in CO & Hโ‚‚ content.

d.

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

Discuss
Answer: (d).all (a), (b) and (c)
Q260.
The gasification reaction represented by, C + Hโ‚‚O = CO + Hโ‚‚, is

a.

exothermic

b.

endothermic

c.

catalytic

d.

autocatalytic

Discuss
Answer: (b).endothermic
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