Sail E0 Webinar

MCQs

Total Questions : 99 | Page 8 of 10 pages
Question 71. .  A liquid is flowing at 11,400 l.h-1 along a pipeline having a diameter of 4 cm. If the liquid has a density of 1 g.ml-1 and viscosity of 0.001kg.m-1.s-1, 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
Question 72. . 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
Question 73. . The viscosity of a fluid increases with increasing stirrer speed. This fluid would be best described as being
  1.    newtonian
  2.    pseudoplastic
  3.    dilatant
  4.    thixotropic
 Discuss Question
Answer: Option C. -> dilatant
Question 74. . 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
Question 75. . 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
Question 76. . A fluid in which the viscosity increases with increasing stirrer speed and mixing time can be called as
  1.    newtonian fluid
  2.    pseudoplastic, thixotropic fluid
  3.    dilatant, rheopectic fluid
  4.    dilatant pseudoplastic fluid
 Discuss Question
Answer: Option B. -> pseudoplastic, thixotropic fluid
Question 77. .  The medium will have the highest viscosity (considering that the cells do not secrete gums) with the presence of
  1.    single celled bacteria
  2.    filamentous fungi that form pellets
  3.    filamentous fungi that grow as long poorly branched chains
  4.    yeast
 Discuss Question
Answer: Option C. -> filamentous fungi that grow as long poorly branched chains
Question 78. .  A Newtonian 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 A. -> is constant regardless of the stirrer speed or mixing time
Question 79. . Animal cell cultures do not have much effect on shear forces because
  1.    the cell size is generally smaller than the critical eddy size at which shear will have an effect
  2.    cells are larger than the critical eddy size at which shear will have an effect
  3.    animal cells have cell walls
  4.    animal cells have cell membranes
 Discuss Question
Answer: Option A. -> the cell size is generally smaller than the critical eddy size at which shear will have an effect
Question 80. . Which pattern of mixing is preferred in stirred tank reactors during the culture of aerobic microorganisms?
  1.    Laminar flow
  2.    Transient flow
  3.    turbulent flow
  4.    all of these
 Discuss Question
Answer: Option C. -> turbulent flow

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