Full ABSA 2A3 Final Exam Test 2026\2027.
The amount of economizer surface required varies with the incoming __________ temperature.
Select one:
A.air
B.combustion gas
C.feedwater
D.furnace
E.steam
C
The purpose of a superheater is to raise the temperature of the steam generated in the boiler:
Select one:
A.above the saturation temperature
B.above the reheat temperature
C.to make the steam less dense
D.to produce dry condensate
E.to reduce the amount of heat required to reach the saturation temperature
A
______ is the demineralization method which uses an applied electric field to continuously regenerate the resin
bed.
EDI
How is pump misalignment, either angular or parallel corrected?
Select one:
A.through use of a flexible coupling
B.inserting shims under the driver feet
C.for small misalignment through the flexible coupling or shim insertion under the pump or driver for larger
D.inserting shims under the pump or driver wherever necessary
E.use a heavy hammer to align the pump with the piping
b
When do the most severe problems with scale occur?
Select one:
A.Low temperature and high velocity
B.High temperature and low velocity
C.High temperature and low turbidity
D.Low temperature and low velocity
E.High temperature and high turbidity
b
Alum is the most common coagulant. What type of water would you normally add alum? Select the best answer.
Select one:
a.Low turbidity with pH above 8
,Full ABSA 2A3 Final Exam Test 2026\2027.
b.High turbidity with pH below 4
c.Medium turbidity with a neutral pH
d.Low to medium turbidity in a pH range of 5.5 to 7.5
e.Low to medium turbidity in a pH range of 5.5 to 7.5
Low to Medium turbidity in a pH range of 5.5 to 7.5
If the impeller speed of a centrifugal pump is doubled, then the quantity pumped will be:
Select one:
A.halved
B.twice as much
C.four times as much
D.eight times as much
E.no difference
B
What is the optimum temperature for recovery at the bottom of an oil well in ºC?
Select one:
A.178
B.208
C.190
D.156
E.202
A
Which of the following ions are removed by a strong cation exchange resin? (You must choose all the correct
responses to get full marks)
Select one or more:
a.Ca
b.Mg
c.Na
d.SO4
e.CO2
f.Cl
Ca, Mg, Na
What is used to aid in biological treatment if the demand becomes too great for a simple open pond?
Select one:
A.Microorganisms are added
B.Oxygen is removed
C.Oxygen is added
D.Carbon and diluents are added
E.Carbon monoxide is added
C
,Full ABSA 2A3 Final Exam Test 2026\2027.
Carbon dioxide is created inside a boiler when the _______ and ______ impurities in water decompose and carry
over with the steam. (two words)
Carbonate Bicarbonate
In a boiler water phosphate program, at boiler pressures above ______ kPa phosphate hideout becomes a concern
17,200
Which chemical that reacts with chlorine, creates a carcinogenic compound that is dangerous to humans?
Select one:
A.Iron
B.Hydrogen
C.Manganese
D.Organics
E.Nitrites
D
During shutdown, the unit should not be drained until it has cooled sufficiently:
Select one:
A.in order to prevent baking on of the sludge
B.to allow for proper shrinkage
C.in order to avoid a reversal of pressure on hand hole caps
D.to prevent the possibility of a pressure explosion
E.to prevent the possibility of an explosion
A
A non-tight casing:
Select one:
A.only serves to protect the insulation
B.is usually constructed of flanged panels
C.is formed when using membrane walls
D.fails to improve the appearance of the boiler
E.is suitable for induced draft systems
A
Emulsified oils can be removed from process waters using a one step process.
Select one:
True
False
False
The term boiler setting originally applied to the brick walls enclosing the furnace and heat transfer surfaces of
the boiler. Today, boiler settings are comprised of:
1. superheaters
2. economizers
3. water cooled walls
, Full ABSA 2A3 Final Exam Test 2026\2027.
4. casing
5. insulation
3,4,5
What is a typical heat source for a watertube waste heat boiler?
Select one:
A.Hot fluid from a process
B.Gas burners
C.Oil burners
D.Hot flue gas from a process
E.Biomass fuel supply
D
In a system to reduce the volume of effluent at a power plant, what is added to the effluent entering the feed tank
to adjust the pH?
Select one:
A.Soda ash
B.Neutralizer
C.Caustic
D.Sodium Hydroxide
E.Acid
E
The wet storage method is not recommended for boilers with __________ or boilers subject to freezing
Select one:
A.air heaters
B.economizers
C.reheaters
D.steam drums
E.superheaters
C
_______ is used to regenerate the hydrogen ions in a hydrogen zeolite softener resin.
Sulphuric acid
In a drum type boiler, what is the most probable cause of carryover? Select the best answer.
Select one:
a.Drum level is too high
b.Drum level is too low
c.Boiler load increase rapidly
d.Incomplete separation steam from the steam water mixture
e.Turbine tripped, causing drum level to spike
D
What efficiency levels as a percentage can a cogeneration plant reach?
Select one:
The amount of economizer surface required varies with the incoming __________ temperature.
Select one:
A.air
B.combustion gas
C.feedwater
D.furnace
E.steam
C
The purpose of a superheater is to raise the temperature of the steam generated in the boiler:
Select one:
A.above the saturation temperature
B.above the reheat temperature
C.to make the steam less dense
D.to produce dry condensate
E.to reduce the amount of heat required to reach the saturation temperature
A
______ is the demineralization method which uses an applied electric field to continuously regenerate the resin
bed.
EDI
How is pump misalignment, either angular or parallel corrected?
Select one:
A.through use of a flexible coupling
B.inserting shims under the driver feet
C.for small misalignment through the flexible coupling or shim insertion under the pump or driver for larger
D.inserting shims under the pump or driver wherever necessary
E.use a heavy hammer to align the pump with the piping
b
When do the most severe problems with scale occur?
Select one:
A.Low temperature and high velocity
B.High temperature and low velocity
C.High temperature and low turbidity
D.Low temperature and low velocity
E.High temperature and high turbidity
b
Alum is the most common coagulant. What type of water would you normally add alum? Select the best answer.
Select one:
a.Low turbidity with pH above 8
,Full ABSA 2A3 Final Exam Test 2026\2027.
b.High turbidity with pH below 4
c.Medium turbidity with a neutral pH
d.Low to medium turbidity in a pH range of 5.5 to 7.5
e.Low to medium turbidity in a pH range of 5.5 to 7.5
Low to Medium turbidity in a pH range of 5.5 to 7.5
If the impeller speed of a centrifugal pump is doubled, then the quantity pumped will be:
Select one:
A.halved
B.twice as much
C.four times as much
D.eight times as much
E.no difference
B
What is the optimum temperature for recovery at the bottom of an oil well in ºC?
Select one:
A.178
B.208
C.190
D.156
E.202
A
Which of the following ions are removed by a strong cation exchange resin? (You must choose all the correct
responses to get full marks)
Select one or more:
a.Ca
b.Mg
c.Na
d.SO4
e.CO2
f.Cl
Ca, Mg, Na
What is used to aid in biological treatment if the demand becomes too great for a simple open pond?
Select one:
A.Microorganisms are added
B.Oxygen is removed
C.Oxygen is added
D.Carbon and diluents are added
E.Carbon monoxide is added
C
,Full ABSA 2A3 Final Exam Test 2026\2027.
Carbon dioxide is created inside a boiler when the _______ and ______ impurities in water decompose and carry
over with the steam. (two words)
Carbonate Bicarbonate
In a boiler water phosphate program, at boiler pressures above ______ kPa phosphate hideout becomes a concern
17,200
Which chemical that reacts with chlorine, creates a carcinogenic compound that is dangerous to humans?
Select one:
A.Iron
B.Hydrogen
C.Manganese
D.Organics
E.Nitrites
D
During shutdown, the unit should not be drained until it has cooled sufficiently:
Select one:
A.in order to prevent baking on of the sludge
B.to allow for proper shrinkage
C.in order to avoid a reversal of pressure on hand hole caps
D.to prevent the possibility of a pressure explosion
E.to prevent the possibility of an explosion
A
A non-tight casing:
Select one:
A.only serves to protect the insulation
B.is usually constructed of flanged panels
C.is formed when using membrane walls
D.fails to improve the appearance of the boiler
E.is suitable for induced draft systems
A
Emulsified oils can be removed from process waters using a one step process.
Select one:
True
False
False
The term boiler setting originally applied to the brick walls enclosing the furnace and heat transfer surfaces of
the boiler. Today, boiler settings are comprised of:
1. superheaters
2. economizers
3. water cooled walls
, Full ABSA 2A3 Final Exam Test 2026\2027.
4. casing
5. insulation
3,4,5
What is a typical heat source for a watertube waste heat boiler?
Select one:
A.Hot fluid from a process
B.Gas burners
C.Oil burners
D.Hot flue gas from a process
E.Biomass fuel supply
D
In a system to reduce the volume of effluent at a power plant, what is added to the effluent entering the feed tank
to adjust the pH?
Select one:
A.Soda ash
B.Neutralizer
C.Caustic
D.Sodium Hydroxide
E.Acid
E
The wet storage method is not recommended for boilers with __________ or boilers subject to freezing
Select one:
A.air heaters
B.economizers
C.reheaters
D.steam drums
E.superheaters
C
_______ is used to regenerate the hydrogen ions in a hydrogen zeolite softener resin.
Sulphuric acid
In a drum type boiler, what is the most probable cause of carryover? Select the best answer.
Select one:
a.Drum level is too high
b.Drum level is too low
c.Boiler load increase rapidly
d.Incomplete separation steam from the steam water mixture
e.Turbine tripped, causing drum level to spike
D
What efficiency levels as a percentage can a cogeneration plant reach?
Select one:
