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 41 of 50

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Q401.
A gaseous fuel in order to develop luminousity on burning, must contain

a.

carbon monoxide

b.

hydrocarbons

c.

hydrogen

d.

oxygen

Discuss
Answer: (b).hydrocarbons
Q402.
Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in

a.

KOH

b.

ammoniacal cuprous chloride

c.

pyrogallol solution

d.

none of these

Discuss
Answer: (d).none of these
Q403.
The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called

a.

fire point

b.

smoke point

c.

burning temperature

d.

kindling temperature

Discuss
Answer: (c).burning temperature
Q404.
A coal having high volatile matter content will

a.

give less yield of tar and gas on carbonisation.

b.

burn with a small non-smoky flame.

c.

have a very high calorific value.

d.

none of these.

Discuss
Answer: (d).none of these.
Q405.
During coking of coal, the ash content (percentage)

a.

increases

b.

decreases

c.

remains constant

d.

None of the above

Discuss
Answer: (a).increases
Q406.
Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.

a.

5

b.

10

c.

20

d.

35

Discuss
Answer: (c).20
Q407.
The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to

a.

minimise its corrosion.

b.

avoid radiation heat loss.

c.

make it look attractive.

d.

none of these.

Discuss
Answer: (b).avoid radiation heat loss.
Q408.
The weathering index of a coal

a.

gives an idea of the fusion temperature of ash.

b.

is related to its calorific value.

c.

is a measure of its size stability, when stored & exposed to weather.

d.

is a measure of its caking tendency.

Discuss
Answer: (c).is a measure of its size stability, when stored & exposed to weather.
Q409.
Bright coal

a.

contains more than 90% durain.

b.

contains more than 90% fussain.

c.

contains mainly vitrain & clarain and is generally coking.

d.

is non-coking.

Discuss
Answer: (c).contains mainly vitrain & clarain and is generally coking.
Q410.
Most of the coking coals are

a.

anthracite

b.

bituminous

c.

lignite

d.

none of these

Discuss
Answer: (b).bituminous
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