Sail E0 Webinar

MCQs

Total Questions : 2441 | Page 26 of 245 pages
Question 251. Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the
  1.    Requirement of large volume combustion chamber
  2.    Risk of explosion
  3.    Chances of clinker formation
  4.    Incomplete combustion of coal
 Discuss Question
Answer: Option B. -> Risk of explosion
Question 252. A coal containing high amount of volatile matter will have
  1.    Low ignition temperature
  2.    Very little ash content
  3.    High fusion point of its ash
  4.    Low adiabatic flame temperature
 Discuss Question
Answer: Option A. -> Low ignition temperature
Question 253. The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.
  1.    Fast & high
  2.    Slow & low
  3.    Slow & high
  4.    Fast & slow
 Discuss Question
Answer: Option A. -> Fast & high
Question 254. Junker's calorimeter is used to determine the calorific value of
  1.    Pulverised coal
  2.    Gaseous fuels
  3.    Fuel oil
  4.    None of these
 Discuss Question
Answer: Option B. -> Gaseous fuels
Question 255. A fuel with high heat release rate will
  1.    Require smaller combustion chamber
  2.    Have high calorific value
  3.    Have high adiabatic flame temperature
  4.    None of these
 Discuss Question
Answer: Option A. -> Require smaller combustion chamber
Question 256. Out of the following, which is the most important parameter for the blast furnace grade coke?
  1.    CSR & CRI
  2.    Ash content
  3.    Moisture content
  4.    Volatile matter content
 Discuss Question
Answer: Option A. -> CSR & CRI
Question 257. The hottest part of the flame lies in its____zone.
  1.    Non-luminous
  2.    Luminous
  3.    Yellow
  4.    Unburnt gases
 Discuss Question
Answer: Option A. -> Non-luminous
Question 258. The fuel ratio of a coal is
  1.    The ratio of its percentage of fixed carbon to that of volatile matter
  2.    Helpful in estimation of its rank
  3.    Both A and B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A and B
Question 259. The weathering index of a coal
  1.    Gives an idea of the fusion temperature of ash
  2.    Is related to its calorific value
  3.    Is a measure of its size stability, when stored & exposed to weather
  4.    Is a measure of its caking tendency
 Discuss Question
Answer: Option C. -> Is a measure of its size stability, when stored & exposed to weather
Question 260. Ionisation potential applied across the electrodes of electrostatic tar precipitator is around
  1.    230 V AC
  2.    60 KV AC
  3.    230 V DC
  4.    60 KV DC
 Discuss Question
Answer: Option D. -> 60 KV DC

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