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 1 of 52

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Q1.
Epoxy resin is a polymer containing two or more following groups called epoxide group or ethoxyline group. It is a

a.

polyamide & an elastomer.

b.

good adhesive.

c.

surface coating agent.

d.

both (b) and (c).

Discuss
Answer: (d).both (b) and (c).
Q2.
Epoxy resins (i.e., epoxide polymers)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q3.
Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, because of its

a.

non-wetting characteristic.

b.

high thermal conductivity.

c.

high crushing strength.

d.

none of these.

Discuss
Answer: (a).non-wetting characteristic.
Q4.
Firing temperature of magnesite bricks is about __________ °C.

a.

800-1000

b.

1000-1200

c.

1600-1800

d.

2400-2600

Discuss
Answer: (c).1600-1800
Q5.
Hollow refractory bricks are made by

a.

slip casting

b.

hand moulding

c.

pressing/machine moulding

d.

extrusion

Discuss
Answer: (a).slip casting
Q6.
Quartz is

a.

stable form of silica upto 870°C.

b.

converted to tridymite on firing between 870 to 1470°C.

c.

transformed to crystoballite on heating above 1470°C.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q7.
An indication of degree of firing in silica brick is its

a.

specific gravity

b.

fusion point

c.

RUL

d.

none of these

Discuss
Answer: (a).specific gravity
Q8.
Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C.

a.

1380

b.

1520

c.

1710

d.

1915

Discuss
Answer: (c).1710
Q9.
Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except

a.

cost

b.

electrical conductivity

c.

thermal conductivity

d.

fusion point

Discuss
Answer: (a).cost
Q10.
An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture ?

a.

Cork

b.

Saw dust

c.

Sand

d.

Chemically prepared foam

Discuss
Answer: (c).Sand
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