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 47 of 50

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Q461.
"Overfire burning" in a furnace is a phenomenon characterised by the

a.

supply of excess fuel.

b.

supply of excess air.

c.

burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air.

d.

none of these.

Discuss
Answer: (c).burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air.
Q462.
Yield of pitch from distillation of high temperature tar is around __________ percent.

a.

10

b.

25

c.

65

d.

90

Discuss
Answer: (c).65
Q463.
Fuel consumption in coke making can be reduced by

a.

preheating, blending and de-ashing the coal.

b.

stamped charging of coal.

c.

dry quenching of coke.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q464.
During combustion of coal on grate, clinker formation is increased by the

a.

use of thick fire bed.

b.

low fusion point of ash (< 1100° C).

c.

use of preheated primary air.

d.

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

Discuss
Answer: (d).all (a), (b) & (c).
Q465.
If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be

a.

low

b.

high

c.

very high, if the fuel is of low calorific value

d.

none of these

Discuss
Answer: (a).low
Q466.
With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

a.

increases

b.

decreases

c.

remains same

d.

either (a) or (b), depends on other factors

Discuss
Answer: (a).increases
Q467.
Which of the following is the maximum coal producing state in India ?

a.

Orissa

b.

West Bengal

c.

Jharkhand

d.

Assam

Discuss
Answer: (c).Jharkhand
Q468.
Height of coke oven is limited (say maximum upto 7 metres) mainly by the

a.

problem of uniform heating along its height.

b.

structural strength of silica bricks.

c.

problem in door cleaning.

d.

buckling of ram of pusher car at the time of coke pushing.

Discuss
Answer: (a).problem of uniform heating along its height.
Q469.
Out of the following fuels, the difference between the net and gross calorific value is maximum in case of

a.

pitch

b.

fuel oil

c.

blast furnace gas

d.

bituminous coal

Discuss
Answer: (b).fuel oil
Q470.
The hottest part of the flame lies in its____zone.

a.

non-luminous

b.

luminous

c.

yellow

d.

unburnt gases

Discuss
Answer: (a).non-luminous
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