Refractory and Polymer Technology MCQs

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

Refractory and Polymer Technology MCQs | Page 4 of 52

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Q31.
Which property of refractories is the most important for top section of the blast furnace?

a.

Resistance to abrasion.

b.

Resistance to slag peneration.

c.

Stability of volume at high temperature.

d.

Resistance to corrosion by slag.

Discuss
Answer: (a).Resistance to abrasion.
Q32.
Which one expands on heating ?

a.

Silica bricks

b.

Fireclay bricks

c.

Both (a) & (b)

d.

Neither (a) nor (b)

Discuss
Answer: (a).Silica bricks
Q33.
Refractoriness/fusion points of 'superduty' refractories is __________ °C.

a.

1520-1630

b.

1630-1670

c.

> 1730

d.

> 2000

Discuss
Answer: (c).> 1730
Q34.
Outer combustion chamber of blast furnace stove is lined with __________ bricks.

a.

fireclay

b.

silica

c.

chrome magnesite

d.

zirconia

Discuss
Answer: (a).fireclay
Q35.
Presence of MgO in alumino-silicate refractories __________ its refractoriness.

a.

increases

b.

lowers

c.

does not affect

d.

either (a) or (b); depends on its quantity

Discuss
Answer: (b).lowers
Q36.
Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.

a.

770

b.

570

c.

270

d.

70

Discuss
Answer: (c).270
Q37.
With increase in the alumina content, the refractoriness of high alumina refractories

a.

increases

b.

decreases

c.

remains same

d.

may increase or decrease

Discuss
Answer: (a).increases
Q38.
A steel member used in the furnace construction to take the thrust of the brickwork is called

a.

buckstay

b.

breast wall

c.

armouring

d.

baffle

Discuss
Answer: (a).buckstay
Q39.
With increase in the porosity, thermal spalling resistance of fireclay brick

a.

increases

b.

decreases

c.

remains same

d.

may increase or decrease

Discuss
Answer: (a).increases
Q40.
Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of

a.

segar cones.

b.

muffles for muffle furnaces.

c.

insulating bricks.

d.

crucibles used for melting of high purity metals.

Discuss
Answer: (d).crucibles used for melting of high purity metals.
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