Sail E0 Webinar

MCQs

Total Questions : 43 | Page 4 of 5 pages
Question 31. . After the fermentation is over, ethanol is recovered by
  1.    centrifugation
  2.    distillation
  3.    filtration
  4.    cell disintegration
 Discuss Question
Answer: Option B. -> distillation
Question 32. . S cerevisiae start producing ethanol with in
  1.    10 h
  2.    12 h
  3.    15 h
  4.    24 h
 Discuss Question
Answer: Option B. -> 12 h
Question 33. . Which of the following organism is not used in any of the traditional industrial fermentation?
  1.    E. coli
  2.    Yeast
  3.    Bacillus
  4.    Pseudomonas
 Discuss Question
Answer: Option A. -> E. coli
Question 34. . How is air supply to the fermentor sterilized?
  1.    By heat filtration
  2.    Filtration through fibrous material
  3.    Filtration through granular material
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 35. . To maintain aseptic conditions during fermentation which of the following is needed?
  1.    Sterilization of fermentor
  2.    Sterilization of air supply
  3.    Aeration and agitation
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 36. . What are the fermentation conditions for the ethanol production?
  1.    pH 6; temperature 35°C
  2.    pH 5; temperature 35°C
  3.    pH 6; temperature 30°C
  4.    pH 5; temperature 30°C
 Discuss Question
Answer: Option B. -> pH 5; temperature 35°C
Question 37. . High ethanol concentration
  1.    promotes yeast growth
  2.    inhibits yeast growth
  3.    promotes bacterial growth
  4.    inhibits bacterial growth
 Discuss Question
Answer: Option B. -> inhibits yeast growth
Question 38. . Which of the following is used for agitation in a fermentor?
  1.    Impeller
  2.    Baffles
  3.    Sparger
  4.    All of these
 Discuss Question
Answer: Option A. -> Impeller
Question 39. . How is air supply to the fermentor sterilized?
  1.    By heat filtration
  2.    Filtration through fibrous material
  3.    Filtration through granular material
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 40. . What are the fermentation conditions for the ethanol production?
  1.    pH 6; temperature 35°C
  2.    pH 5; temperature 35°C
  3.    pH 6; temperature 30°C
  4.    pH 5; temperature 30°C
 Discuss Question
Answer: Option B. -> pH 5; temperature 35°C

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