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 Basic Chemical 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 Basic Chemical 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 Basic Chemical 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 10 of 50

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Q91.
Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases.

a.

CO content

b.

dew point

c.

CO₂ content

d.

O₂ content

Discuss
Answer: (a).CO content
Q92.
Which of the following has the highest theoretical flame temperature ?

a.

Blast furnace gas

b.

Hydrogen

c.

Acetylene

d.

Coke oven gas

Discuss
Answer: (c).Acetylene
Q93.
Ultimate analysis of coal determines its __________ content.

a.

carbon, hydrogen, nitrogen & sulphur.

b.

carbon, ash, sulphur & nitrogen.

c.

carbon, sulphur, volatile matter & ash.

d.

carbon, volatile matter, ash & moisture.

Discuss
Answer: (a).carbon, hydrogen, nitrogen & sulphur.
Q94.
(64-132) rank coal (ASTM) means a coal with 64%

a.

fixed carbon and having a heating value around 13, 200 BTU/1b.

b.

ash and heating value around 13, 200 BTU/1b.

c.

fixed carbon and heating value around 132 BTU/1b.

d.

none of these.

Discuss
Answer: (a).fixed carbon and having a heating value around 13, 200 BTU/1b.
Q95.
High sulphur (4-6%) coal in India are found in

a.

Assam

b.

Andhra Pradesh

c.

Bengal

d.

Madhya Pradesh

Discuss
Answer: (a).Assam
Q96.
High ash coals

a.

are soft & friable (poor strength and size stability).

b.

require longer time of carbonisation as ash offers resistance to heat transfer.

c.

produce larger quantity of coke oven gas.

d.

none of these.

Discuss
Answer: (b).require longer time of carbonisation as ash offers resistance to heat transfer.
Q97.
Which of the following is not a by-product fuel ?

a.

Pitch

b.

Blast furnace gas

c.

Petrol

d.

Refinery gas

Discuss
Answer: (c).Petrol
Q98.
Preheating of combustion air is done to

a.

increase the adiabatic flame temperature.

b.

increase the calorific value of the fuel.

c.

complete the combustion of fuel.

d.

reduce its requirement for effecting the complete combustion.

Discuss
Answer: (a).increase the adiabatic flame temperature.
Q99.
Anthracite can be used for

a.

recarbonising steel.

b.

making carbon electrodes;

c.

blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q100.
Sulphur in metallurgical coal

a.

contributes to its heating value.

b.

affects the quality of steel produced as cracks develop on the surface while rolling the steel.

c.

both (a) and (b).

d.

neither (a) nor (b).

Discuss
Answer: (c).both (a) and (b).
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