Sail E0 Webinar

MCQs

Total Questions : 868 | Page 4 of 87 pages
Question 31. Carbon bricks are not used in the lining of the
  1.    Combustion chamber of blast furnace stoves
  2.    Electric furnaces
  3.    Highly chemical resistant equipments
  4.    Blast furnace hearth
 Discuss Question
Answer: Option A. -> Combustion chamber of blast furnace stoves
Question 32. Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of
  1.    Fireclay
  2.    Silicon carbide
  3.    Corrundum
  4.    Siliceous fireclay
 Discuss Question
Answer: Option B. -> Silicon carbide
Question 33. Permeability of bricks is a measure of the
  1.    Refractoriness
  2.    Melting point
  3.    Rate at which a fluid will pass through the pores
  4.    Expansion during heating
 Discuss Question
Answer: Option C. -> Rate at which a fluid will pass through the pores
Question 34. Addition of zircon to silica refractory brick improves its
  1.    Crushing strength
  2.    Resistance to slag attack
  3.    Neither A nor B
  4.    Neither A nor B
 Discuss Question
Answer: Option B. -> Resistance to slag attack
Question 35. Cold crushing strength of refractories depends upon its
  1.    Composition
  2.    Texture
  3.    Firing temperature
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 36. Hollow refractory bricks are made by
  1.    Slip casting
  2.    Hand moulding
  3.    Pressing/machine moulding
  4.    Extrusion
 Discuss Question
Answer: Option A. -> Slip casting
Question 37. Which property of refractories is the most important for top section of the blast furnace?
  1.    Resistance to abrasion
  2.    Resistance to slag peneration
  3.    Stability of volume at high temperature
  4.    Resistance to corrosion by slag
 Discuss Question
Answer: Option A. -> Resistance to abrasion
Question 38. Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material?
  1.    Aluminium phosphate
  2.    Water
  3.    Lime
  4.    Plaster of paris
 Discuss Question
Answer: Option B. -> Water
Question 39. Which of the following is not an acidic refractory?
  1.    Silica bricks
  2.    Fireclay bricks
  3.    Bauxite bricks
  4.    Magnesia bricks
 Discuss Question
Answer: Option D. -> Magnesia bricks
Question 40. Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C.
  1.    1380
  2.    1520
  3.    1710
  4.    1915
 Discuss Question
Answer: Option C. -> 1710

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0