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!

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Fuels and Combustion MCQs | Page 36 of 50

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Q351.
Bomb calorimeter is used for the determination of calorific value of the __________ fuels.

a.

gaseous

b.

solid

c.

liquid

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q352.
As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air.

a.

decreases

b.

increases

c.

remains same

d.

may increase or decrease depending on the type of fuel

Discuss
Answer: (b).increases
Q353.
Which of the following fuel gases has the highest calorific value ?

a.

Natural gas.

b.

Coal bed methane (CBM).

c.

Liquefied petroleum gas (LPG).

d.

Sewage gas.

Discuss
Answer: (c).Liquefied petroleum gas (LPG).
Q354.
Calorific value as determined by bomb calorimeter is the

a.

higher calorific value at constant volume.

b.

gross calorific value at constant pressure.

c.

lower calorific value at constant pressure.

d.

net calorific value at constant volume.

Discuss
Answer: (a).higher calorific value at constant volume.
Q355.
Fixed carbon in coal is defined as

a.

that present in volatile matters.

b.

the total quantity of carbon present in the coal.

c.

hundred minus the percentage of volatile matter, ash and moisture.

d.

the one which is present in the residue after combustion.

Discuss
Answer: (c).hundred minus the percentage of volatile matter, ash and moisture.
Q356.
Which of the following fuels has the highest calorific value per unit mass (kcal/kg) ?

a.

Coal

b.

Kerosene

c.

Natural gas

d.

Furnace oil

Discuss
Answer: (d).Furnace oil
Q357.
With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.

a.

hydrogen

b.

methane

c.

unsaturated hydrocarbons

d.

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

Discuss
Answer: (a).hydrogen
Q358.
During its calorific value determination by bomb calorimeter, coal is combusted by

a.

air

b.

oxygen

c.

oxygen enriched air

d.

none of these

Discuss
Answer: (b).oxygen
Q359.
Abel apparatus is used for those oils, whose flash points are___°F.

a.

<120

b.

>120

c.

>280

d.

300-600

Discuss
Answer: (a).<120
Q360.
Quantity of coke produced from metallurgical coal may be around __________ percent.

a.

30

b.

50

c.

75

d.

95

Discuss
Answer: (c).75
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