Sail E0 Webinar

MCQs

Total Questions : 3241 | Page 1 of 325 pages
Question 1. A coalescer in a mixer-settler liquid-liquid extraction coloumn
  1.    Comprises of thin bed of substances of extended surface having high porosity
  2.    Helps in increasing the bubble size entering the settler
  3.    Helps in increasing the settling rate of the bubbles
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 2. Tower diameter may be decreased by
  1.    Using higher reflux ratio
  2.    Use of increased tray spacing
  3.    Increasing the liquid flow rate
  4.    Increasing the vapour flow rate
 Discuss Question
Answer: Option B. -> Use of increased tray spacing
Question 3. Flash distillation is suitable for the separation of components
  1.    Having very close boiling points
  2.    Which form maximum boiling azeotrope
  3.    Having very wide boiling points
  4.    Which form minimum boiling azeotrope
 Discuss Question
Answer: Option C. -> Having very wide boiling points
Question 4. Make up water is required in a cooling tower to replace the water lost by
  1.    Evaporation
  2.    Drift
  3.    Blowdown and leakage
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 5. In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter
  1.    > 4 :1
  2.    < 8 : 1
  3.    > 8:1
  4.    < 6:1
 Discuss Question
Answer: Option C. -> > 8:1
Question 6. In an absorber, HETP does not vary with the
  1.    Flow rate of liquid
  2.    Flow rate of gas
  3.    Type and size of packing
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 7. Use of natural draft cooling tower is practised, when the air has low
  1.    Humidity
  2.    Temperature
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A & B
Question 8. Raoult's law applies to the
  1.    All liquid solutions
  2.    Non-ideal solution only
  3.    Non-volatile solute
  4.    Solvents
 Discuss Question
Answer: Option D. -> Solvents
Question 9. The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is
  1.    +ve
  2.    -ve
  3.    Zero
  4.    None of these
 Discuss Question
Answer: Option A. -> +ve
Question 10. Which of the following can be calculated theoretically using steam table and Dalton's law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known?
  1.    Dew point
  2.    Humidity ratio
  3.    Wet bulb temperature
  4.    None of these
 Discuss Question
Answer: Option C. -> Wet bulb temperature

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