Refractory Technology MCQ Questions & Answers

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Each section contains 100 MCQs on Refractory Technology .

Conversion of silica mineral to cristobalite is accompanied by reduction in its

A) Volume B) Specific gravity C) Both A & B D) Neither A nor B

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Cermets are

A) Composite material containing both ceramic & metallic constituents B) Having high strength & resistance to high temperature C) Used in space vehicles, missiles & nuclear energy plants D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which is not a basic refractory?

A) Chrome magnesite B) Magnesite C) Dolomite D) Silicon carbide

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Chrome magnesite bricks are

A) Acidic in nature B) Neutral in nature C) Having higher RUL than silica bricks D) Made by mixing 30% chromite and 70% periclase

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Chromite refractories are

A) Acidic refractory B) Neutral refractory C) Basic refractory D) Fired at a temperature of 600°C only

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Refractory bricks having lower porosity have

A) High insulating properties B) Low heat capacity C) Low thermal conductivity D) Greater strength

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Fireclay bricks is not used for lining the

A) Cupola B) Gas producer C) Bottom of hot metal mixer D) Roof of open hearth furnace

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Colour of fireclay bricks is

A) Light buff to reddish buff B) Yellow C) Black D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Semi-silica bricks compared to silica bricks have

A) Less fusion point B) Better spalling resistance C) Both A & B D) Neither A nor B

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Magnesite refractories have low resistance to

A) Attack by basic slag B) Abrasion C) Disintegration on sudden change of temperature D) Both B and C

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Refractory Technology MCQ Questions & Answers | Chemical Engineering