Furnace Technology MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Furnace Technology, 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 Furnace Technology 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 Furnace Technology mcq questions that explore various aspects of Furnace Technology problems. Each MCQ is crafted to challenge your understanding of Furnace Technology 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 Furnace Technology 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 Furnace Technology. 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 Furnace Technology knowledge to the test? Let's get started with our carefully curated MCQs!

Furnace Technology MCQs | Page 15 of 16

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Q141.
Which furnace employs an I.D. fan for the removal of flue gases from the furnace ?

a.

Coke oven.

b.

Blast furnace stoves.

c.

Beehive coke oven.

d.

High pressure boiler.

Discuss
Answer: (d).High pressure boiler.
Q142.
Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C.

a.

5

b.

60

c.

20

d.

40

Discuss
Answer: (c).20
Q143.
The advantages of firing pulverised coal in the furnace lies in the fact that, it

a.

permits the use of high ash content coal.

b.

permits the use of low fusion point ash coal.

c.

accelerates the burning rate and economises on fuel consumption.

d.

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

Discuss
Answer: (c).accelerates the burning rate and economises on fuel consumption.
Q144.
Which is not accomplished in an underfired furnace ?

a.

Increase in heating capacity/m² of floor space.

b.

Elimination of cold spot at the bottom of the charge.

c.

Reduction in the temperature of furnace gases.

d.

Portection of the periphery of the charge from excessive radiation.

Discuss
Answer: (a).Increase in heating capacity/m² of floor space.
Q145.
In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of

a.

use of non-preheated combustion air.

b.

use of pulverised solid fuels.

c.

imperfect mixing of fuel & air and infiltration of air.

d.

use of excessive positive draft in the furnace.

Discuss
Answer: (c).imperfect mixing of fuel & air and infiltration of air.
Q146.
Rate of heat release in a furnace, which is the measure of heat intensity is defined as

a.

kcal/hr/m³ combustion space.

b.

kcal/m³ combustion space.

c.

kcal/hr.

d.

none of these.

Discuss
Answer: (a).kcal/hr/m³ combustion space.
Q147.
Oxygen enrichment of combustion air does not result in increase of the

a.

flame temperature.

b.

oxygen in the flue gas.

c.

stack loss.

d.

heat transfer rate in the furnace.

Discuss
Answer: (b).oxygen in the flue gas.
Q148.
An example of recuperative furnace is the

a.

soaking pit

b.

open hearth furnace

c.

coke ovens

d.

none of these

Discuss
Answer: (a).soaking pit
Q149.
An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.

a.

walking beam

b.

shaft

c.

tunnel

d.

rotary hearth

Discuss
Answer: (a).walking beam
Q150.
Which of the following variables affects the furnace capacity ?

a.

Temperature of flue gas.

b.

Thermal conductivity of stock.

c.

Thickness of heating stock.

d.

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

Discuss
Answer: (d).All (a), (b) and (c).
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