Sail E0 Webinar

MCQs

Total Questions : 99 | Page 4 of 10 pages
Question 31. Which of the following can act as a shear protectorant?
  1.    Serum
  2.    Silicone oil
  3.    Glucose
  4.    Glutamic acid
 Discuss Question
Answer: Option A. -> Serum
Answer: (a).Serum
Question 32. A liquid is flowing at 11,400 l.h­¹ along a pipeline having a diameter of 4 cm. If the liquid has a density of 1 g.ml­¹ and viscosity of 0.001kg.m­¹.s­¹, then the liquid would be in the
  1.    laminar phase
  2.    transient phase
  3.    turbulent phase
  4.    any of the phase
 Discuss Question
Answer: Option C. -> turbulent phase
Answer: (c).turbulent phase
Question 33. Mixing in stirred tank reactors can
  1.    be described as either laminar, transient or turbulent
  2.    achieve turbulent conditions by increasing the stirrer speed
  3.    induce laminar flow conditions by the addition of baffles
  4.    all of the above
 Discuss Question
Answer: Option A. -> be described as either laminar, transient or turbulent
Answer: (a).be described as either laminar, transient or turbulent
Question 34. In animal cell bioreactor, bubble damage can be minimized by
  1.    the addition of a shear protectorant
  2.    using a bubble free oxygen delivery system
  3.    headspace aeration
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 35. The viscosity of a fluid changes with either stirrer speed or mixing time. But when mixing ceases, the viscosity returns to its original state. This fluid is best described as
  1.    newtonian
  2.    rheopectic
  3.    viscoelastic
  4.    thixotropic
 Discuss Question
Answer: Option C. -> viscoelastic
Answer: (c).viscoelastic
Question 36. The SI unit for viscosity is
  1.    kg.m­¹.s­¹
  2.    kg.m­².s­²
  3.    kg.m­³.s­¹
  4.    kg.m­¹.s­²
 Discuss Question
Answer: Option A. -> kg.m­¹.s­¹
Answer: (a).kg.m­¹.s­¹
Question 37. In sparged mammalian cell bioreactors, the cell damage is caused because of
  1.    shear stress arising during mixing of the cell culture fluid
  2.    shear stresses arising from the breakup of bubbles at the liquid surface
  3.    shear stresses between bubbles in foam at the liquid surface
  4.    all of the above
 Discuss Question
Answer: Option A. -> shear stress arising during mixing of the cell culture fluid
Answer: (a).shear stress arising during mixing of the cell culture fluid
Question 38. A thixotropic fluid is one in which the viscosity
  1.    is constant regardless of the stirrer speed or mixing time
  2.    changes during mixing but returns to its original state after mixing
  3.    increases with mixing time
  4.    decreases with mixing time
 Discuss Question
Answer: Option D. -> decreases with mixing time
Answer: (d).decreases with mixing time
Question 39. A rheopectic fluid is one in which the viscosity
  1.    is constant regardless of the stirrer speed or mixing time
  2.    changes during mixing but returns to its original state after mixing
  3.    increases with mixing time
  4.    decreases with mixing time
 Discuss Question
Answer: Option C. -> increases with mixing time
Answer: (c).increases with mixing time
Question 40. A dilatant fluid is one in which the viscosity
  1.    is constant regardless of the stirrer speed or mixing time
  2.    changes during mixing but returns to its original state after mixing
  3.    increases with increasing stirrer speed
  4.    decreases with increasing stirrer speed
 Discuss Question
Answer: Option C. -> increases with increasing stirrer speed
Answer: (c).increases with increasing stirrer speed

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