Question

Pick out the wrong statement.

a.

Refractories used in muffle furnace should have low thermal conductivity.

b.

The electrical resistivity of refractories drops rapidly with rise in temperature.

c.

For reducing spalling tendency, the refractory should be well fired and its porosity should be more.

d.

Refractoriness under load (RUL) of a refractory is always less than its refractoriness.

Posted under Basic Chemical Engineering

Answer: (a).Refractories used in muffle furnace should have low thermal conductivity.

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. Pick out the wrong statement.
Add Comment

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. __________ bricks should not be used in oxidising atmosphere.

View solution

Q. Pick out the wrong statement.

View solution

Q. Fusion temperature of pure silica (SiO₂) is __________ °C.

View solution

Q. Addition of zircon to silica refractory brick improves its

View solution

Q. Which is a neutral refractory ?

View solution

Q. Permeability of bricks is a measure of the

View solution

Q. With increase in the density of silica refractories, its

View solution

Q. Magnesite chrome refractories

View solution

Q. Zirconia refractories are not used in

View solution

Q. Carbon refractories

View solution

Q. Magnesite refractories have low resistance to

View solution

Q. Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves ?

View solution

Q. The maximum linear expansion of silica bricks during firing is about __________ percent.

View solution

Q. Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent.

View solution

Q. Porosity of fireclay refractories is __________ percent.

View solution

Q. SiO₂ percentage in firebrick is about

View solution

Q. Porosity is induced in insulating refractories by adding

View solution

Q. Magnesite bricks have poor resistance to attack by __________ slag.

View solution

Q. An ideal refractory should have high

View solution

Q. Ganister is a source of the

View solution
View All MCQs on Basic Chemical Engineering

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!

Avionics Engineering

Soar into the world of aviation technology with our Avionics Engineering category....

Cytogenetics

Delve into the genetic mysteries of chromosomes with our Cytogenetics category....

Cost Accounting

Dive into the realm of Cost Accounting with our specialized category. Explore cost...

Life Sciences

Delve into the diverse world of life sciences with our specialized category. Explore...

Genetic Engineering

Unlock the potential of Genetic Engineering with our dedicated category. Explore gene...

Virology

Explore the captivating world of Virology with our specialized category. Dive into...

Logical Reasoning

Enhance your logical thinking and decision-making abilities with our Logical...

Environmental Engineering

Explore the critical field of Environmental Engineering with our dedicated category....

Heat Transfer

Explore the fascinating world of heat transfer with our Heat Transfer category....