Book 3: 7-17 - Water Treatment Flashcards
Calcium bicarbonate in the boiler feedwater produces:
Select one:
A. Permanent hardness, very high solubility
B. Temporary hardness and permanent hardness
C. Permanent hardness, very low solubility
D. Temporary hardness, very high solubility
E. Temporary hardness, very low solubility
E. Temporary hardness, very low solubility
The four conditions that can occur within the boiler include all of the following except:
Select one:
A. Mud
B. Erosion
C. Foaming
D. Scale
E. Corrosion
B. Erosion
Magnesium sulphate in the boiler feedwater produces:
Select one:
A. Permanent hardness, low solubility
B. Temporary hardness and permanent hardness
C. Permanent hardness, high solubility
D. Temporary hardness, high solubility
E. Temporary hardness, low solubility
A. Permanent hardness, low solubility
The “radical” in the boiler feedwater that indicates “permanent hardness” is the:
Select one:
A. Bicarbonate
B. Resin
C. Sulphate
D. Polymer
E. Zeolite
C. Sulphate
Large facilities will have a lab on site to carry out the water testing by conducting all of the following tests except:
Select one:
A. Combined chlorine
B. Bacteriological
C. Colour comparison
D. Taste
E. Free chlorine
D. Taste
Magnesium bicarbonate in the boiler feedwater produces:
Select one:
A. Permanent hardness, very low solubility
B. Permanent hardness, very high solubility
C. Temporary hardness and permanent hardness
D. Temporary hardness, very high solubility
E. Temporary hardness, very low solubility
E. Temporary hardness, very low solubility
The “radical” in the boiler feedwater that indicates “temporary hardness” is the:
Select one:
A. Zeolite
B. Resin
C. Sulphate
D. Bicarbonate
E. Polymer
D. Bicarbonate
Shot feeding involves the injection of boiler water treatment chemicals over a:
Select one:
A. Twenty-four hour period
B. Relatively long period of time
C. Eight hour period
D. Twelve hour period
E. Relatively short period of time
E. Relatively short period of time
The amount of chemicals fed to a boiler is dependent upon the:
Select one:
A. Size of the boiler
B. Amount of water in the boiler
C. Age of the boiler
D. Type of boiler
E. Values derived from the boiler water tests
E. Values derived from the boiler water tests
The modes of operation of the sodium zeolite water softener include all of the following except:
Select one:
A. Exchange
B. Flush
C. Rinse
D. Injection
E. Backwash
B. Flush
Large facilities will have a lab on site to carry out the water testing by conducting all of the following tests except:
Select one:
A. Turbidity (clarity)
B. Odour levels
C. Total dissolved solids (TDS)
D. pH (acidity/alkalinity) value
E. Dye penetrant
E. Dye penetrant
The filtration method of water treatment will:
Select one:
A. Act to remove suspended solids
B. Soften the water
C. Remove suspended liquids
D. Remove dissolved gases
E. Act to remove suspended gases
A. Act to remove suspended solids
The adverse conditions that can occur within the boiler are caused by all of the following except:
Select one:
A. Organics
B. Dissolved gases
C. Suspended solids
D. Dissolved solids
E. Suspended gases
E. Suspended gases
Common methods of removing suspended solids from boiler make-up water are:
Select one:
A. Coagulators and softeners
B. Evaporators and screens
C. Softeners and settling tanks
D. Deaerators and scrubbers
E. Settling tanks and filters
E. Settling tanks and filters
Filters are frequently used in conjunction with _____ in which case most of the suspended impurities are removed.
Select one:
A. Hot lime softeners
B. Sodium zeolite softeners
C. Demineralizers
D. Settling tanks
E. Deaerators
D. Settling tanks
The amount of chemicals fed to a boiler is dependent upon the:
Select one:
A. Type of boiler
B. Amount of water in the boiler
C. Size of the boiler
D. Amount of make-up required during the next 24 hours
E. Age of the boiler
D. Amount of make-up required during the next 24 hours
Material trapped in the bed of a pressure filter is removed by:
Select one:
A. Backwashing the filter
B. Regenerating the bed with a regenerant
C. Passing chemicals through the exhausted bed
D. Heating the bed
E. Replacing the bed with new material
A. Backwashing the filter
The backwash cycle of a, sodium zeolite softener regeneration will:
Select one:
A. Loosen or separate and flush the bed of trapped suspended matter
B. Flush out excess regenerant
C. Follow the rinse cycle of the regeneration
D. Flush out excess zeolite
E. Allow the regenerant to exchange with the “elemental” impurity
A. Loosen or separate and flush the bed of trapped suspended matter
A plunger pump is a _____ pump.
Select one:
A. Lobe
B. Centrifugal
C. Gear
D. Vane
E. Reciprocating
E. Reciprocating
The boiler blowdown procedure may be done about _____ times per day, each time for about 15 seconds, depending on the demand.
Select one:
A. One
B. Four
C. Three
D. Two
E. Five
C. Three
In order to prevent the contamination of a potable water supply the method of providing a physical separation between the free flowing discharge end of a potable water pipe and an open or non-pressure receiving vessel is the:
Select one:
A. Double check valve
B. Reduced pressure principal device
C. Air gap
D. Atmospheric vacuum breaker
E. Pressure vacuum breaker
C. Air gap
Temporary hardness in water is caused by:
Select one:
A. Sulphates and bicarbonates
B. Suspended solids
C. Calcium and magnesium sulphates
D. Sodium chloride and/or hydroxide
E. Calcium and/or magnesium bicarbonates
E. Calcium and/or magnesium bicarbonates
The regenerant most often used for regenerating a sodium zeolite softener is:
Select one:
A. Hydrogen chloride
B. Calcium sulphate
C. Sulphuric acid
D. Sodium hydroxide
E. Sodium chloride
E. Sodium chloride
A sodium zeolite water softener causes:
Select one:
A. The solubility of a dissolved solid impurity to be lowered
B. Brine to become insoluble
C. The solubility of the zeolite impurity to be lowered
D. Dissolved solids, as compounds, to be removed
E. Elements, associated with a radical, to be removed and replaced with elemental sodium
E. Elements, associated with a radical, to be removed and replaced with elemental sodium
Calcium sulphate in the boiler feedwater produces:
Select one:
A. Temporary hardness, low solubility
B. Permanent hardness, low solubility
C. Temporary hardness and permanent hardness
D. Temporary hardness, high solubility
E. Permanent hardness, high solubility
B. Permanent hardness, low solubility
With zeolite filters it is easy to flush much zeolite down the drain during the _____ cycle.
Select one:
A. Backwash
B. Service
C. Regeneration
D. Injection
E. Rinse
A. Backwash
The amount of chemicals fed to a boiler is dependent upon the:
Select one:
A. Amount of steam produced over the next 24 hours
B. Age of the boiler
C. Size of the boiler
D. Type of boiler
E. Amount of water in the boiler
A. Amount of steam produced over the next 24 hours
Calcium bicarbonate in the boiler feedwater produces:
Select one:
A. Temporary hardness, very low solubility
B. Temporary hardness, very high solubility
C. Permanent hardness, very low solubility
D. Permanent hardness, very high solubility
E. Temporary hardness and permanent hardness
B. Temporary hardness, very high solubility
The modes of operation of the sodium zeolite water softener include all of the following except:
Select one:
A. Rinse
B. Exchange
C. Backwash
D. Flush
E. Injection
D. Flush
Magnesium sulphate in the boiler feedwater produces:
Select one:
A. Permanent hardness, high solubility
B. Permanent hardness, low solubility
C. Temporary hardness, high solubility
D. Temporary hardness, low solubility
E. Temporary hardness and permanent hardness
B. Permanent hardness, low solubility
The amount of chemicals fed to a boiler is dependent upon the:
Select one:
A. Amount of make-up required during the next 24 hours
B. Size of the boiler
C. Amount of water in the boiler
D. Age of the boiler
E. Type of the boiler
A. Amount of make-up required during the next 24 hours
The regenerant most often used for regenerating a sodium zeolite softener is:
Select one:
A. Sodium hydroxide
B. Sodium chloride
C. Sulphuric acid
D. Hydrogen chloride
E. Calcium sulphate
B. Sodium chloride
Large facilities will have a lab on site to carry out the water testing by conducting all of the following tests except:
Select one:
A. Colour comparison
B. Free chlorine
C. Bacteriological
D. Taste
E. Combined chlorine
D. Taste
Calcium sulphate in the boiler feed water produces:
Select one:
A. Temporary hardness, high solubility
B. Temporary hardness and permanent hardness
C. Temporary hardness, low solubility
D. Permanent hardness, high solubility
E. Permanent hardness, low solubility
E. Permanent hardness, low solubility
The boiler blowdown procedure may be done about _____ times per day, each time for about 15 seconds, depending on the demand.
Select one:
A. Two
B. Four
C. One
D. Five
E. Three
E. Three
Large facilities will have a lab on site to carry out the water testing by conducting all of the following tests except:
Select one:
A. Odour levels
B. Total dissolved solids (TDS)
C. Turbidity (clarity)
D. pH (acidity/alkalinity) value
E. Dye penetrant
E. Dye penetrant
The amount of chemicals fed to a boiler is dependent upon the:
Select one:
A. Amount of water in the boiler
B. Values derived from the boiler water tests
C. Age of the boiler
D. Type of the boiler
E. Size of the boiler
B. Values derived from the boiler water tests
Magnesium bicarbonate in the boiler feed water produces:
Select one:
A. Temporary hardness and permanent hardness
B. Permanent hardness, very high solubility
C. Permanent hardness, very low solubility
D. Temporary hardness, very high solubility
E. Temporary hardness, very low solubility
E. Temporary hardness, very low solubility
With zeolite filters it is easy to flush much zeolite down the drain during the ______ cycle.
Select one:
A. Service
B. Backwash
C. Regeneration
D. Injection
E. Rinse
B. Backwash
The modes of operation of the sodium zeolite water softener include all of the following except:
Select one:
A. Exchange
B. Rinse
C. Injection
D. Backwash
E. Flush
E. Flush
