Sail E0 Webinar

MCQs

Total Questions : 146 | Page 7 of 15 pages
Question 61. The function(s) of the draft tube in an airlift bioreactor is
  1.    to reduce bubble coalescence
  2.    to improve circulation
  3.    to even out shear conditions throughout the reactor
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 62. The high oxygen transfer efficiencies of airlift bioreactors is due to
  1.    the large aspect ratio of the reactor, which leads to a high gas hold-up
  2.    the large aspect ratio of the reactor, which leads to a high oxygen solubility at the base of the reactor
  3.    the draft tube, which reduces bubble coalescence in the reactor
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 63. The function of a mechanical seal is to
  1.    prevent contaminants entering the reactor
  2.    prevent cells from leaving the reactor
  3.    both (a) and (b)
  4.    prevent air to enter
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 64. Diauxie is
  1.    growth factors
  2.    microbiological die off
  3.    the simultaneous uptake of nutrients
  4.    the stagewise uptake of nutrients
 Discuss Question
Answer: Option D. -> the stagewise uptake of nutrients
Answer: (d).the stagewise uptake of nutrients
Question 65. The phenomenon in which substrates are used in a sequential manner is known as
  1.    trans-substrate genesis
  2.    dialism
  3.    diauxie
  4.    multiplicity
 Discuss Question
Answer: Option C. -> diauxie
Answer: (c).diauxie
Question 66. An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called
  1.    manostat
  2.    chemostat
  3.    turbidostat
  4.    culturostat
 Discuss Question
Answer: Option B. -> chemostat
Answer: (b).chemostat
Question 67. The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate)
  1.    F/VR
  2.    VR/F
  3.    μ/F
  4.    F/μ
 Discuss Question
Answer: Option A. -> F/VR
Answer: (a).F/VR
Question 68. The region of an airlift bioreactor in which the liquid travels in a downward direction is called the
  1.    downcomer
  2.    disengagement zone
  3.    air riser
  4.    flotsam
 Discuss Question
Answer: Option A. -> downcomer
Answer: (a).downcomer
Question 69. The maximum specific growth rate (μm) of an organism in batch culture is equal to slope of a plot of
  1.    In [biomass] against time for exponential phase data only
  2.    In [biomass] against time
  3.    biomass against time
  4.    biomass against time for stationary phase data only
 Discuss Question
Answer: Option A. -> In [biomass] against time for exponential phase data only
Answer: (a).In [biomass] against time for exponential phase data only
Question 70. A higher Ks value of Monod's equation means
  1.    greater affinities to substrate
  2.    lower affinities to substrate
  3.    unaffected with the substrate bonding
  4.    lower dissociation constant value
 Discuss Question
Answer: Option A. -> greater affinities to substrate
Answer: (a).greater affinities to substrate

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

GPOE / GPA Combined 1 Free Mock Test SAIL JO E-0 2024
Chapter 3.1 : INTRODUCTION Chapter 3 : Sinter Plant SAIL E0 - GPOE/GPA 2024
Chapter 2.3 : COAL HANDLING PLANT - Set 1 Chapter 2 : Coke Ovens and Coal Chemicals SAIL E0 - GPOE/GPA 2024
Chapter 1.1 : INTRODUCTION Chapter 1 : Raw Material Handling Plant SAIL E0 - GPOE/GPA 2024
DSP Combined 1 Free Revision Test SAIL JO E-0