Sail E0 Webinar

MCQs

Total Questions : 828 | Page 80 of 83 pages
Question 791. Which of the following compounds is widely used for algae control ?
  1.    sodium sulphate
  2.    copper sulphate
  3.    sodium chloride
  4.    calcium chloride
 Discuss Question
Answer: Option B. -> copper sulphate
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 792. The treatment of water with bleaching powder is known as________________?
  1.    prechlorination
  2.    super chlorination
  3.    dechlorination
  4.    hypochlorination
 Discuss Question
Answer: Option D. -> hypochlorination
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 793. Double filtration is used_______________?
  1.    to increase the filtration slow sand filters capacity of
  2.    to increase the filtration rapid sand filters capacity of
  3.    for isolated buildings like pools, hotels etc swimming
  4.    all of the above
 Discuss Question
Answer: Option A. -> to increase the filtration slow sand filters capacity of
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 794. The disinfection efficiency of chlorine increases by_______________?
1) decreasing the time of contact
2) decreasing the temperature of water
3) increasing the temperature of water
The correct answer is ?
  1.    only (1)
  2.    both (1) and (2)
  3.    both (1) and (3)
  4.    only (3)
 Discuss Question
Answer: Option D. -> only (3)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 795. The process in which the chlorination is done beyond the break point is known as_________________?
  1.    prechlorination
  2.    post chlorination
  3.    super chlorination
  4.    break point chlorination
 Discuss Question
Answer: Option C. -> super chlorination
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 796. Disinfection of water results in______________?
  1.    removal of turbidity
  2.    removal of hardness
  3.    killing of disease bacteria
  4.    complete sterilisation
 Discuss Question
Answer: Option C. -> killing of disease bacteria
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 797. As compared to rapid sand filters, slow sand filters give______________?
1) slower filtration rate
2) higher filtration rate
3) lesser efficiency in removal of bacteria
4) higher efficiency in removal of bacteria
The correct answer is?
  1.    (1) and (2)
  2.    (2) and (3)
  3.    (1) and (4)
  4.    (2) and (4)
 Discuss Question
Answer: Option C. -> (1) and (4)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 798. Period of cleaning of slow sand filters is about________________?
  1.    24 – 48 hours
  2.    10-12 days
  3.    2-3 months
  4.    1-2 year
 Discuss Question
Answer: Option C. -> 2-3 months
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 799. Air binding phenomena in rapid sand filters occur due to_________________?
  1.    excessive negative head
  2.    mud ball formation
  3.    higher turbidity in the effluent
  4.    low temperature
 Discuss Question
Answer: Option A. -> excessive negative head
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 800. The rate of filtration in slow sand filters in million litres per day per hectare is about_____________?
  1.    50 to 60
  2.    100 to 150
  3.    500 to 600
  4.    1400 to 1500
 Discuss Question
Answer: Option A. -> 50 to 60
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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