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 28 of 50

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Q271.
A coal having higher volatile matter content will necessarily have lower

a.

ash fusion temperature.

b.

calorific value.

c.

ignition temperature.

d.

caking index.

Discuss
Answer: (c).ignition temperature.
Q272.
Pick out the wrong statement.

a.

Percentage of ash in coke produced from medium coking coal is more than that in coal.

b.

The calorific value (kcal/Nm³) of coke oven gas reduces on removal of hydrogen from it by cryogenic method.

c.

Ash is normally removed as 'flyash' in kopper-Totzek process of coal gasification.

d.

Coal based fertiliser plants in India at Talcher (Orissa) and Ramagundam (A.P) employ Kopper-Totzek process of coal gasification.

Discuss
Answer: (c).Ash is normally removed as 'flyash' in kopper-Totzek process of coal gasification.
Q273.
Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.

a.

5

b.

25

c.

55

d.

75

Discuss
Answer: (b).25
Q274.
With increases in carbonisation temperature

a.

coke even gas yield increases.

b.

tar yield increases.

c.

hydrogen percentage in the coke oven gas decreases.

d.

methane percentage in the coke oven gas increases.

Discuss
Answer: (a).coke even gas yield increases.
Q275.
Moisture loss is determined by the

a.

humidity of combustion air.

b.

moisture content of fuel.

c.

both (a) and (b).

d.

the water formed by combustion reaction.

Discuss
Answer: (c).both (a) and (b).
Q276.
Purity of coke means that, it is high in carbon and low in

a.

volatiles

b.

ash

c.

iron

d.

moisture

Discuss
Answer: (a).volatiles
Q277.
Largest constituent of blast furnace gas is

a.

N₂

b.

CO

c.

CO₂

d.

H₂

Discuss
Answer: (a).N₂
Q278.
Out of the following, which is the most important parameter for the blast furnace grade coke ?

a.

CSR & CRI

b.

Ash content

c.

Moisture content

d.

Volatile matter content

Discuss
Answer: (a).CSR & CRI
Q279.
Presence of nitrogen in combustion air does not reduce the

a.

amount of heat liberated.

b.

flame temperature.

c.

flue gas temperature.

d.

any of the above.

Discuss
Answer: (a).amount of heat liberated.
Q280.
In flue gas analysis by Orsat's apparatus, oxygen is absorbed by

a.

potassium hydroxide.

b.

cuprous chloride.

c.

alkaline pyragllol solution.

d.

none of these.

Discuss
Answer: (c).alkaline pyragllol solution.
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