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 9 of 50

Discover more Topics under Power Plant Engineering

Q81.
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant ?

a.

Ammonium sulphate

b.

Ammonium nitrate

c.

Ammonium phosphate

d.

None of these

Discuss
Answer: (a).Ammonium sulphate
Q82.
Percentage of hydrogen in coke oven gas may be around

a.

10

b.

25

c.

45

d.

60

Discuss
Answer: (d).60
Q83.
Function of secondary air in pulverised coal firing is to

a.

transport the coal to the burner.

b.

dry the coal.

c.

ensure efficient burning of coal around the burner.

d.

reduce primary air requirement.

Discuss
Answer: (c).ensure efficient burning of coal around the burner.
Q84.
Calorific value of dry wood may be around __________ Kcal/kg.

a.

5

b.

50

c.

500

d.

5000

Discuss
Answer: (a).5
Q85.
Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.

a.

1800

b.

3200

c.

5400

d.

10200

Discuss
Answer: (c).5400
Q86.
When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal.

a.

carbonisation

b.

oxidation

c.

coalification

d.

gasification

Discuss
Answer: (d).gasification
Q87.
Dry air requirement for burning 1 Nm³ of CO to CO₂ may be around __________ Nm³.

a.

2.4

b.

1.75

c.

0.87

d.

11.4

Discuss
Answer: (a).2.4
Q88.
Degree of carbonisation of coal during coke making can be roughly judged by the __________ of the coke produced.

a.

colour

b.

moisture content

c.

ash content

d.

volatile matter

Discuss
Answer: (d).volatile matter
Q89.
Ammonia content in raw coke oven gas is about __________ gm/Nm³.

a.

1

b.

15

c.

50

d.

100

Discuss
Answer: (b).15
Q90.
Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis.

a.

550

b.

750

c.

950

d.

1150

Discuss
Answer: (c).950
Page 9 of 50