LA Steam Engineer Test Questions and Answers Rated A
A desuperheater that is installed in a boiler is used to
Super heated steam temperature
control..
Economizers are finned to.. Increase the rate of heat for heat transfer
The heat transfer taking place in a surface condenser is
Conduction
accomplished mainly by..
An unfired pressure vessel which is used to transfer heat
Feed water heater, Evaporator and Oil Cooler
from one substance to another is called..
Boiler economizers are primarily used for.. Recovery heat from flue gas
The main purpose of the deaerator is to.. Eliminate non-condensable gases
Superheated steam is more eflcient because.. Temperature & Total heat content are increased
A spear boiler feed water pump is equipped with a check
Permit fast start up by leaving the discharge valve open
valve in the discharge line to...
Excessive fireside deposits on heating surfaces of a un-
Decreased super heater outlet temperature
controlled super heated boiler would be indicated by...
Why is the super heater safety valve set to release before
To ensure flow through the super heater
the drum safety?
What is the purpose of a steam trap? To drain water and air
A steam trap utilizes flash steam to open but what comes
Impulse
after for the closing operation?
Pitting in suction areas of a bronze impeller in centrifugal
(Best answer) Cavitation or (Second Best) Corrosion
pumps is usually caused by?
What type of pump has no moving parts? Jet pump
Centrifugal boiler feed water pumps are usually equipped
Bypass valves
with?
Which condition is the probable cause of centrifugal
Pump is not primed
pump failure to deliver water when first started?
1/7
, LA Steam Engineer Test Questions and Answers Rated A
Low pressure from metering or proportioning pumps may
Rapid wear on plunger
be caused by?
If a centrifugal pump that operates with suction lift be-
Reprime the pump
comes air bound you should?
An important consideration in the prevention of carryover
Control water level
in a boiler is to?
As alkalinity of boiler water increases the water inside the
Soft
boiler becomes increasingly ?
The residue created from chemically treated feed water
Boiler Blowdown
remains in the boiler thus increasing the need for?
Grooving and pitting is caused by? Dissolved O2 and CO2
What test is used to detect corrosive boiler water? Hardness Test
Chemical which would not be used for the purpose of
Sulfuric acid
regeneration of softner and dematerialize is?
Why are continuous blow downs necessary on high make
To maintain proper dissolved boiler water solids
up?
Steam seperation is less ettective when there is? High water level in the drum
Soft sludge in the waterside of the boiler can be readily
Dissolved salts
produced by?
Oxygen entrapped in feed water entering the boiler can
Erosion
cause?
Non condensable gases and O2 are removed from boiler
Dearation
feed water by?
The limitation placed upon acceptable solids in boiler feed
(Not 100% sure) There is no "acceptable" limit
water is?
The use of pre heated combustion air increases
Eflciency
.
2/7
A desuperheater that is installed in a boiler is used to
Super heated steam temperature
control..
Economizers are finned to.. Increase the rate of heat for heat transfer
The heat transfer taking place in a surface condenser is
Conduction
accomplished mainly by..
An unfired pressure vessel which is used to transfer heat
Feed water heater, Evaporator and Oil Cooler
from one substance to another is called..
Boiler economizers are primarily used for.. Recovery heat from flue gas
The main purpose of the deaerator is to.. Eliminate non-condensable gases
Superheated steam is more eflcient because.. Temperature & Total heat content are increased
A spear boiler feed water pump is equipped with a check
Permit fast start up by leaving the discharge valve open
valve in the discharge line to...
Excessive fireside deposits on heating surfaces of a un-
Decreased super heater outlet temperature
controlled super heated boiler would be indicated by...
Why is the super heater safety valve set to release before
To ensure flow through the super heater
the drum safety?
What is the purpose of a steam trap? To drain water and air
A steam trap utilizes flash steam to open but what comes
Impulse
after for the closing operation?
Pitting in suction areas of a bronze impeller in centrifugal
(Best answer) Cavitation or (Second Best) Corrosion
pumps is usually caused by?
What type of pump has no moving parts? Jet pump
Centrifugal boiler feed water pumps are usually equipped
Bypass valves
with?
Which condition is the probable cause of centrifugal
Pump is not primed
pump failure to deliver water when first started?
1/7
, LA Steam Engineer Test Questions and Answers Rated A
Low pressure from metering or proportioning pumps may
Rapid wear on plunger
be caused by?
If a centrifugal pump that operates with suction lift be-
Reprime the pump
comes air bound you should?
An important consideration in the prevention of carryover
Control water level
in a boiler is to?
As alkalinity of boiler water increases the water inside the
Soft
boiler becomes increasingly ?
The residue created from chemically treated feed water
Boiler Blowdown
remains in the boiler thus increasing the need for?
Grooving and pitting is caused by? Dissolved O2 and CO2
What test is used to detect corrosive boiler water? Hardness Test
Chemical which would not be used for the purpose of
Sulfuric acid
regeneration of softner and dematerialize is?
Why are continuous blow downs necessary on high make
To maintain proper dissolved boiler water solids
up?
Steam seperation is less ettective when there is? High water level in the drum
Soft sludge in the waterside of the boiler can be readily
Dissolved salts
produced by?
Oxygen entrapped in feed water entering the boiler can
Erosion
cause?
Non condensable gases and O2 are removed from boiler
Dearation
feed water by?
The limitation placed upon acceptable solids in boiler feed
(Not 100% sure) There is no "acceptable" limit
water is?
The use of pre heated combustion air increases
Eflciency
.
2/7
