WorksheetsPre-Test: Water Treatment System
Total questions: 16
Worksheet time: 8mins
Which among the following is used for the coagulation of suspended solids?
Hydrochloric Acid
Sodium Bisulfite
Ferric Chloride
Sodium Hypochlorite
Which among the following is the commercial name for liquid Sodium Hypochlorite (NaOCl)?
Chlorox
Muriatic Acid
Liquid Sosa
Baking Soda
What is the purpose of DMF (Dual Media Filter)?
To remove the oxygen in water
To gather fine and light solids to forming larger particles called flocs
Both a and b
To filter out suspended solids
Desalination is a process which
Sucks up marine creatures
Adds more salt to water
Removes salt from water
Removes suspended solids from water
What is used to neutralize the natural acidity of product water and give the desired pH for industrial water use.
HCl
NaOH
NaOCl
NaHSO3
Process of forcing a solvent from a region of high concentration through a semi-permeable membrane to a region of low concentration by applying a pressure in excess of osmotic pressure.
Reverse Osmosis
Normal Osmosis
Osmotic Pressure
Osmosis
What unit that uses a physico-chemical settling process combining the advantages of microsand ballasted flocculation and lamella settling?
Actisand
DMF
Actiflo
MMF
What is the process when water flows from low concentration of salts to high concentration?
Reverse Osmosis
Osmosis
Filtration
Coagulation
What is the product water of BWRO called?
Demineralized Water
Industrial Water
Potable Water
Condensate Water
Filters the seawater from suspended solids and removes undesirable odors and colors using dual media (sand and anthracite).
Semi-Auto Filtration System
Dual Media Filter
Sand Filter
Multi-Media Filter
Cationic resins remove
Positive ions
Negative ions
Salt
Suspended solids
How much is the allowable degree rise in the condenser cooling water—between the intake and discharge canal?
<3 degree C
<4 degree C
<5 degree C
<6 degree C
A substance that minimizes changes in pH is called?
Acid
Base
Buffer
Anti-scalant
Which among the following is an indication of a condenser tube leak?
Increase in feedwater cationic conductivity
Increase in feedwater specific conductivity
Increase in feedwater Chloride content
All of the above
Pure water is
Good insulator
Appears in 3 phases
Universal Solvent
All of the above
Low feedwater pH will promote
Acid corrosion
Scale formation
Pitting corrosion
Oxygen corrosion
