Quizalize logo
placeholder image to represent content

Recap day 123

Quiz by Padmasini Srivathsan

Feel free to use or edit a copy

includes Teacher and Student dashboards

Measure skills
from any curriculum

Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.

With a free account, teachers can
  • edit the questions
  • save a copy for later
  • start a class game
  • automatically assign follow-up activities based on students’ scores
  • assign as homework
  • share a link with colleagues
  • print as a bubble sheet

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes
11 questions
Show answers
  • Q1

     Zero hardness can be achieved by

                                             

     Lime dosing

      

     IX

    Alum dosing   

    15s
  • Q2

    AFB  Reactor is filled with activated carbon carriers which provides large surface area for growth of anaerobic bacteria only and not for anoxic bacteria

    false
    true
    True or False
    20s
  • Q3

     CGE can be proposed with the following thermal source

                             

     Hot Oil @170DegC

     Steam @3barg

     Hot water@98DegC

     All the above

    B only 

    20s
  • Q4

    For controlling Algae, commonly used chemical 

                                                     

       Lime

    Copper Sulphate

     Bleaching powder

    Alum    

    20s
  • Q5

    Which of the following does not stimulate scale formation?

                                  

       pH

     

     Temperature

      

        Area

    Flow velocity

    20s
  • Q6

     Ceramic UF can be used for applications with 10-20ppm of oil & grease at 55DegC

    true
    false
    True or False
    20s
  • Q7

      What is the recommended flux used in RO for treating bore well water

                                   

    12-20LMH

      

    24-35LMH

    5-20LMH 

    20s
  • Q8

    Green Sand filter is commonly used to remove small amounts of  

                                          

     Biomass

           

     Fe & Mn

     

    c) CO2 

    30s
  • Q9

    While designing CFRO we use loosest membranes in front and tightest membranes at the back

    false
    true
    True or False
    20s
  • Q10

    No. of stages in CFRO should not exceed 5

    false
    true
    True or False
    20s
  • Q11

    Solids produced from ATFD need to be post-treated to remove water before disposal.

    false
    true
    True or False
    20s

Teachers give this quiz to your class