IndiaBIX
IndiaBIX
Start typing & press "Enter" or "ESC" to close
  • Home
  • Jobs
  • Results
  • Current Affairs
  • GK
  • Online Test
  • HR Interview
  • BLOG

Refractory Technology - Section 1 (4)

  • Home
  • Chemical Engineering
  • Chemical Engineering Questions and Answers
  • Refractory Technology - Section 1
Directions to Solve

Refractory Technology - Section 1

This is a technology field and there are MCQs available to solve
which are based on this field. You will find these problems in this section.

25. 

Chemically, mullite refractories is

A. 3Al2O 3.2SiO 2
B. Al 2 O 3
C. ZrSO 4
D. ThO 2

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

26. 

Firing of refractory brick is done to

A. dehydrate the dried refractory.
B. develop stable mineral forms in them.
C. form ceramic bonds necessary for development of high crushing strength in the finished product.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

27. 

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

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

28. 

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

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

29. 

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

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

30. 

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.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

31. 

Thoria

A. has high fusion temperature (> 3000°C) but poor resistance to thermal shock.
B. has high resistance to basic slags.
C. which is expensive & radioactive, is used in crucibles for melting high purity metals.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

32. 

Which is not a basic refractory ?

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

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

View Answer Discuss Workspace Report

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7

Questions & Answers

Aptitude Chemical Engineering Civil Engineering Computer Science & Engineering Current Affairs Data Interpretation Electrical & Electronics Engineering Electronics & Communication Engineering General Knowledge Logical Reasoning Mechanical Engineering Non Verbal Reasoning Verbal Ability Verbal Reasoning

Interviews

HR Interview

Jobs

Sarkari Jobs

Results

Rojgar ResultSarkari Result

Admission

Admission 2023

Admit Card

Admit Card 2023

Answer Key

Answer Key 2023
copyright
Privacy Policy
© 2026 IndiaBIX. All Rights Reserved.

Report