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.
Highly reactive coke have lower

a.

porosity.

b.

coke reactivity index (CRI).

c.

Critical air blast (CAB) value.

d.

both (b) and (c).

Discuss
Answer: (c).Critical air blast (CAB) value.
Q252.
A coal with high ash content

a.

has higher calorific value.

b.

is harder and stronger.

c.

is not subjected to washing.

d.

has low quantity of mineral matter.

Discuss
Answer: (b).is harder and stronger.
Q253.
The shift conversion reaction taking place during water gas manufacture is given by

a.

C + H₂O ↔ CO + H₂

b.

C + 2H₂O ↔ CO₂ + 2H₂

c.

CO + H₂O ↔ CO₂ + H₂

d.

none of these

Discuss
Answer: (c).CO + H₂O ↔ CO₂ + H₂
Q254.
Which of the following is unsuitable fuel for producer gas manufacture ?

a.

Coke.

b.

Anthracite.

c.

Coal having low fusion point of its ash.

d.

Coal having high fusion point of its ash.

Discuss
Answer: (c).Coal having low fusion point of its ash.
Q255.
A good metallurgical coke

a.

should have high porosity.

b.

should be brittle.

c.

must contain moderate quantities of ash, moisture, sulphur and volatile matters.

d.

should have low fusion point of its ash.

Discuss
Answer: (a).should have high porosity.
Q256.
Shatter index of the coke is a measure of its

a.

strength

b.

bulk density

c.

reactivity

d.

none of these

Discuss
Answer: (a).strength
Q257.
Narrow coke ovens as compared to wider coke ovens

a.

produce smaller coke.

b.

produce stronger coke.

c.

require less time of carbonisation.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q258.
Preheating of __________ the flame temperature.

a.

the gaseous fuel before combustion decreases

b.

combustion air decreases

c.

either the fuel or the air or both, increases

d.

either the fuel or the air does not affect.

Discuss
Answer: (c).either the fuel or the air or both, increases
Q259.
Which of the following has the highest heat of combustion?

a.

H₂

b.

CO

c.

CH₄

d.

C₂H₆

Discuss
Answer: (d).C₂H₆
Q260.
Calorific value of wood gas is about __________ kcal/Nm³.

a.

1500

b.

3300

c.

5400

d.

8500

Discuss
Answer: (b).3300
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