Sail E0 Webinar

MCQs

Total Questions : 1556 | Page 13 of 156 pages
Question 121. The grit chambers of sewage treatment plants, are generally cleaned after
  1.    2 days
  2.    7 days
  3.    12 days
  4.    14 days
 Discuss Question
Answer: Option D. -> 14 days
Question 122. Cement concrete sewers are only suitable if non-scouring velocity is between
  1.    2.5 to 3.0 m/sec
  2.    3.0 to 4.0 m/sec
  3.    3.5 to 4.5 m/sec
  4.    4.5 to 5.5 m/sec
 Discuss Question
Answer: Option A. -> 2.5 to 3.0 m/sec
Question 123. Pick up the correct statement from the following:
  1.    Small sewers are cleaned by flushing
  2.    Medium sewers are cleaned by cane rodding
  3.    Medium sewers may be cleaned by pills
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 124. Pick up the correct statement from the following:
  1.    Maximum daily flow = 2 times the average daily flow
  2.    Maximum daily flow = ⅔ × average daily flow
  3.    Sewers are designed for minimum permissible velocity at minimum flow
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 125. In sewers the velocity of flow should not be
  1.    More than the self-cleansing velocity
  2.    Less than the self-cleansing velocity
  3.    Less than 10 m/sec
  4.    More than 20 m/sec
 Discuss Question
Answer: Option B. -> Less than the self-cleansing velocity
Question 126. Which one of the following resists hydrogen sulphide corrosion?
  1.    R.C.C.
  2.    Glazed stone wares
  3.    Asbestos cement
  4.    Glazed ware
 Discuss Question
Answer: Option D. -> Glazed ware
Question 127. Pick up the correct statement from the following:
  1.    The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge
  2.    The sewer pipes of sizes greater than 0.4 m diameter are designed as running 2/3rd or 3/4th full at maximum discharge
  3.    The minimum design velocity of sewer pipes is taken as 0.8 m/sec
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 128. The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
  1.    1.095
  2.    1.085
  3.    1.075
  4.    1.065
 Discuss Question
Answer: Option A. -> 1.095
Question 129. The gas evolved in sewers is
  1.    Carbondioxide
  2.    Hydrogen sulphide
  3.    Methane
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 130. Pick up the correct statement from the following:
  1.    Anaerobic bacteria flourish in the absence of oxygen
  2.    Aerobic bacteria flourish in the presence of oxygen
  3.    Facultative bacteria flourish with or without oxygen
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above

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