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 19 of 52

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Q181.
__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.

a.

Percent elongation

b.

Resilience

c.

Freezing point

d.

Strength

Discuss
Answer: (b).Resilience
Q182.
Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten

a.

teflon

b.

bakelite

c.

SBR

d.

PVC

Discuss
Answer: (d).PVC
Q183.
The starting material used for the manufacture of caprolactum is

a.

ethyl benzene

b.

cyclohexane

c.

ethylene glycol

d.

DMT

Discuss
Answer: (b).cyclohexane
Q184.
Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an

a.

polyester

b.

polyamide

c.

polyisoprene

d.

polystyrene

Discuss
Answer: (b).polyamide
Q185.
Styrene which is a monomer for the production of polystyrene, is commercially produced by the

a.

catalytic dehydrogenation of ethyl benzene.

b.

dehydration of ethyl alcohol followed by hydrogenation.

c.

reacting ethylene oxide with acetal-dehyde.

d.

fermentation of starch.

Discuss
Answer: (a).catalytic dehydrogenation of ethyl benzene.
Q186.
Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks.

a.

bakelite impregnated or fused periclase

b.

silica

c.

semi-silica

d.

fireclay

Discuss
Answer: (a).bakelite impregnated or fused periclase
Q187.
Fireclay refractories

a.

are not resistant to the action of basic slags.

b.

combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc.

c.

shrink during firing

d.

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

Discuss
Answer: (d).all (a), (b) and (c)
Q188.
Which is not a high alumina refractory ?

a.

Mullite

b.

Corrundum

c.

Bauxite

d.

Dolomite

Discuss
Answer: (d).Dolomite
Q189.
Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors.

a.

Beryllia

b.

Carborundum

c.

Corundum

d.

Thoria

Discuss
Answer: (a).Beryllia
Q190.
Faster rate of drying of moulded refractories results in high __________ of refractories.

a.

green strength

b.

voids

c.

shrinkage

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
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