Sail E0 Webinar

MCQs

Total Questions : 2441 | Page 25 of 245 pages
Question 241. Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent.
  1.    3 & 10
  2.    10 & 3
  3.    10 & 20
  4.    15 & 8
 Discuss Question
Answer: Option B. -> 10 & 3
Question 242. Presence of phosphorous in metallurgical coal
  1.    Is not undersirable
  2.    Reduces its calorific value
  3.    Badly affects the quality of steel
  4.    Increases its caking power
 Discuss Question
Answer: Option C. -> Badly affects the quality of steel
Question 243. Short/intense flame is produced during combustion of gaseous fuel by using
  1.    High amount/current of combustion air
  2.    Low amount/current of combustion air
  3.    Preheated secondary air
  4.    Very little excess air
 Discuss Question
Answer: Option A. -> High amount/current of combustion air
Question 244. Sulphur in metallurgical coal
  1.    Contributes to its heating value
  2.    Affects the quality of steel produced as cracks develop on the surface while rolling the steel
  3.    Both A and B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A and B
Question 245. Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in
  1.    KOH
  2.    Ammoniacal cuprous chloride
  3.    Pyrogallol solution
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 246. Which of the following has the highest calorific value (kcal/Nm³) ?
  1.    Carburetted water gas
  2.    Gobar gas
  3.    Natural gas
  4.    LPG
 Discuss Question
Answer: Option D. -> LPG
Question 247. If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as
  1.    O₂
  2.    CO
  3.    N₂
  4.    SO₂
 Discuss Question
Answer: Option D. -> SO₂
Question 248. Which of the following has the least calorific value (kcal/Nm³) ?
  1.    Blast furnace gas
  2.    Coke oven gas
  3.    Sewage gas
  4.    Natural gas
 Discuss Question
Answer: Option A. -> Blast furnace gas
Question 249. Caking index of coal blend used for blast furnace coke making is about
  1.    8
  2.    12
  3.    22
  4.    36
 Discuss Question
Answer: Option C. -> 22
Question 250. Purity of coke means that, it is high in carbon and low in
  1.    Volatiles
  2.    Ash
  3.    Iron
  4.    Moisture
 Discuss Question
Answer: Option A. -> Volatiles

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