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 6 of 50

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Q51.
With increase in calorific value of fuels, their adiabatic flame temperatures

a.

increase

b.

decrease

c.

remain unchanged

d.

may increase or decrease ; depends on the quantity of products of combustion

Discuss
Answer: (d).may increase or decrease ; depends on the quantity of products of combustion
Q52.
Coal tar fuel - 200 (CTF 200) is a mixture of

a.

pitch and creosote oil.

b.

light oil and pitch.

c.

anthracene and crecosote oil.

d.

solar oil and pitch.

Discuss
Answer: (a).pitch and creosote oil.
Q53.
Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³.

a.

4000

b.

2500

c.

6500

d.

10000

Discuss
Answer: (c).6500
Q54.
High pressure coal gasification is employed in __________ process.

a.

Lurgi

b.

Kopper-Totzek

c.

Winkler

d.

none of these

Discuss
Answer: (a).Lurgi
Q55.
Flue gas from the heating chamber of byproduct coke ovens is removed by

a.

forced draft fan

b.

induced draft fan

c.

steam ejector

d.

natural draft

Discuss
Answer: (d).natural draft
Q56.
Pick out the wrong statement.

a.

LPG is also used as fuel for automobiles & small furnaces and for cutting & welding of metals.

b.

The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point.

c.

Each ton of petroleum oil on distillation produces about 30-50 Nm³ of gas.

d.

Maximum yield of naphthalene is obtained on distillation of crude oil.

Discuss
Answer: (b).The minimum temperature, at which a petroleum oil vapor catches fire and continues to burn, is called its flash point.
Q57.
Stack heat losses can be minimised by

a.

controlling the excess air.

b.

oxygen enrichment of combustion air.

c.

using low c.v. fuels.

d.

maintaining proper draft in the furnace.

Discuss
Answer: (a).controlling the excess air.
Q58.
Laboratory gas is obtained by the cracking of

a.

gasoline

b.

diesel

c.

fuel oil

d.

kerosene

Discuss
Answer: (d).kerosene
Q59.
Bituminous coal

a.

ignites less easily than anthracite.

b.

is generally coking.

c.

burns with smoky yellow flame.

d.

both (b) and (c).

Discuss
Answer: (d).both (b) and (c).
Q60.
Ratio of primary air to secondary air increases with increase in the rank of coal, because the

a.

high rank coals have higher amount of volatile matter.

b.

ratio of fixed carbon to volatile matter increases.

c.

oxygen content progressively decreases.

d.

calorific value of the coal increases.

Discuss
Answer: (b).ratio of fixed carbon to volatile matter increases.
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