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 36 of 50

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Q351.
Which of the following gaseous fuels has the highest net calorific value (kcal/Nm³)?

a.

Producer gas

b.

Carburetted water gas

c.

Natural gas

d.

Liquified petroleum gas

Discuss
Answer: (d).Liquified petroleum gas
Q352.
Which of the following is coking ?

a.

Vitrain

b.

Fussain

c.

both (a) & (b)

d.

Neither (a) nor (b)

Discuss
Answer: (a).Vitrain
Q353.
Undercharging of coal in the by-product coke ovens results in

a.

decrease in the c.v. of coke oven gas.

b.

increase in its throughput.

c.

increase in the c.v. of coke oven gas.

d.

no change in the c.v. of coke oven gas.

Discuss
Answer: (a).decrease in the c.v. of coke oven gas.
Q354.
During the carbonisation of coal

a.

all tar is evolved at < 600°C.

b.

evolution of H₂ and formation of methane and aromatics occur at > 700°C.

c.

hard semi-coke starts shrinking at 600°C.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q355.
Pulverised coal used in boiler firing need not have

a.

less moisture content

b.

high fusion point of its ash

c.

high bulk density

d.

lower ash content

Discuss
Answer: (b).high fusion point of its ash
Q356.
Lurgi coal gasifier is a pressurised __________ bed reactor.

a.

moving

b.

fixed

c.

fluidised

d.

entrained

Discuss
Answer: (a).moving
Q357.
Which is the most matured coal ?

a.

Lignite

b.

Bituminous

c.

Semi-anthracite

d.

Anthracite

Discuss
Answer: (d).Anthracite
Q358.
The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be

a.

27.6

b.

23

c.

47.3

d.

42.9

Discuss
Answer: (b).23
Q359.
Caking index of coal blend used for blast furnace coke making is about

a.

8

b.

12

c.

22

d.

36

Discuss
Answer: (c).22
Q360.
Washing of coal

a.

reduces its ash & sulphur content.

b.

improves its coking properties.

c.

increase the fusion point of its ash by removing chlorine compounds.

d.

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

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