Sail E0 Webinar

MCQs

Total Questions : 90 | Page 6 of 9 pages
Question 51. The organic loading in a trickling filter is measured in ___________
  1.    m³/day
  2.    gm/m²/day
  3.    Kg/hectare-meter/day
  4.    Kg/hectare/day
 Discuss Question
Answer: Option C. -> Kg/hectare-meter/day
Answer: (c).Kg/hectare-meter/day
Question 52. The recirculation factor in a low rate trickling filter is ___________
  1.    0
  2.    1
  3.    10
  4.    100
 Discuss Question
Answer: Option B. -> 1
Answer: (b).1
Question 53. The maximum removal of suspended and dissolved impurities from the sewage is?
  1.    65
  2.    70
  3.    92
  4.    99
 Discuss Question
Answer: Option C. -> 92
Answer: (c).92
Question 54. The color of the secondary sludge produced from the high rate trickling filter is ___________
  1.    Gray
  2.    Black
  3.    Brown
  4.    Green
 Discuss Question
Answer: Option C. -> Brown
Answer: (c).Brown
Question 55. The hydrogen sulfide gas formed during the filtration of sewage can be removed by ___________
  1.    Carbonation
  2.    Chlorination
  3.    Addition of lime
  4.    Titration with potassium dichromate
 Discuss Question
Answer: Option B. -> Chlorination
Answer: (b).Chlorination
Question 56. _______ is the ratio of volume of recirculated sewage to the raw sewage.
  1.    Recirculation factor
  2.    Recirculation ratio
  3.    Food to mass ratio
  4.    BOD
 Discuss Question
Answer: Option B. -> Recirculation ratio
Answer: (b).Recirculation ratio
Question 57. The range of organic loading in kg/hectare metre/ day in a high rate trickling filter is ___________
  1.    6000-18000
  2.    10000-20000
  3.    5000-10000
  4.    900-2200
 Discuss Question
Answer: Option A. -> 6000-18000
Answer: (a).6000-18000
Question 58. The expression of the recirculation factor F is given by ___________
  1.    F = 1 / (1+0.1 (R/I))²
  2.    F = (1+ R) / (1+0.1 (R/I))²
  3.    F = (1+ I/R) / (1+0.1(R/I))²
  4.    F = (1+ R/I) / (1+0.1(R/I))²
 Discuss Question
Answer: Option D. -> F = (1+ R/I) / (1+0.1(R/I))²
Answer: (d).F = (1+ R/I) / (1+0.1(R/I))²
Question 59. The size of filter media in a high rate trickling filter is ___________
  1.    10-20mm
  2.    34-68mm
  3.    25-60mm
  4.    20-50mm
 Discuss Question
Answer: Option C. -> 25-60mm
Answer: (c).25-60mm
Question 60. Recirculation increases the efficiency of high rate trickling filters.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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