ABSA 4B FINAL EXAM AND
PRACTICE EXAM 2025/2026 BANK
COMPLETE QUESTIONS AND
ANSWERS ACCURATE ACTUAL
EXAM WITH FREQUENTLY
TESTED QUESTIONS AND STUDY
GUIDE / EXPERT VERIFIED FOR
GUARANTEED PASS/ALREADY
GRADED A+
Internal ____ is not required for dynamic type compressors.
seals
lubrication
pressure monitoring
corrosion monitoring
temperature monitoring - ANSWER b
Low pressure or high pressure are the two primary classifications of
____.
centrifugal pumps
sump pumps
boilers
draft fans
pressure controllers - ANSWER e
The boiler feedwater becomes increasingly ____ as it approaches the
measurement of zero.
acidic
neutral
softer
basic
,alkaline - ANSWER a
The following hydrocarbon(s) may be entrained in a natural gas stream:
Propane
Butane
Ethane
Methane
All of the above - ANSWER e
Although ____ is created, high viscosity oils are still preferred for low
speed/high load systems.
lower floc point oils
lower oil friction
high pour point oils
high velocity oils
higher oil friction - ANSWER e
Every shift the boiler water should be ____.
filled with dissolved solids
tested
condensed
replaced
evaporated - ANSWER b
Sodium sulphite is a commonly used ____ in boilers.
oxygen scavenger
carbon dioxide scavenger
coagulant
pH inhibitor
flocculant - ANSWER a
As the density of the air ___, the gas turbines output increases.
increases
diminishes
decreases
flatlines
fluctuates - ANSWER a
,The ____ of a quartz lamp heating element is a few seconds.
maintenance time
shutdown time
response time
cleaning time
startup time - ANSWER c
To increase the pH of condensate ____ should be added.
dissolved oxygen
dissolved carbon dioxide
neutralizing amines
coagulants
organics - ANSWER c
Garter springs hold the ____ in the proper position in a steam turbine.
condenser
baffles
carbon ring sealing glands
refractory
steel billets - ANSWER c
Cement may be used for the protective coating of a ____.
orifice plates
venturi tubes
hot water storage tank
u-tube manometers
pressure gauges - ANSWER c
Propeller fans distribute large volumes of air at ____.
high pressures
high moisture levels
high temperatures
low temperatures
low pressures - ANSWER e
Cement may be used for the protective coating of a ____.
u-tube manometers
, orifice plates
venturi tubes
pressure gauges
hot water storage tank - ANSWER e
The hot exhaust gases from the gas turbine combustor travel downstream
to be ____ in the turbine blading.
expanded
filtered
heating
contracted
cooled - ANSWER a
Recovery boilers must be shut down immediately when a tube leak
develops because water generates a violent physical reaction upon
contacting ____.
white liquor
black liquor
green liquor
molten smelt
cooking liquor - ANSWER d
In operating applications with high pressure and slow speed ____ are
commonly used.
coagulants
light oils
low viscosity mineral oils
low viscosity synthetic oils
heavy oils - ANSWER e
During the power stroke of a four-stroke engine, the ___ is combusted.
lubricating oil
hydrogen
air
fuel/air mixture
fuel - ANSWER d
____ are small relief valves that do not relieve pressure but are installed
in systems to warn of impending overpressurization.
PRACTICE EXAM 2025/2026 BANK
COMPLETE QUESTIONS AND
ANSWERS ACCURATE ACTUAL
EXAM WITH FREQUENTLY
TESTED QUESTIONS AND STUDY
GUIDE / EXPERT VERIFIED FOR
GUARANTEED PASS/ALREADY
GRADED A+
Internal ____ is not required for dynamic type compressors.
seals
lubrication
pressure monitoring
corrosion monitoring
temperature monitoring - ANSWER b
Low pressure or high pressure are the two primary classifications of
____.
centrifugal pumps
sump pumps
boilers
draft fans
pressure controllers - ANSWER e
The boiler feedwater becomes increasingly ____ as it approaches the
measurement of zero.
acidic
neutral
softer
basic
,alkaline - ANSWER a
The following hydrocarbon(s) may be entrained in a natural gas stream:
Propane
Butane
Ethane
Methane
All of the above - ANSWER e
Although ____ is created, high viscosity oils are still preferred for low
speed/high load systems.
lower floc point oils
lower oil friction
high pour point oils
high velocity oils
higher oil friction - ANSWER e
Every shift the boiler water should be ____.
filled with dissolved solids
tested
condensed
replaced
evaporated - ANSWER b
Sodium sulphite is a commonly used ____ in boilers.
oxygen scavenger
carbon dioxide scavenger
coagulant
pH inhibitor
flocculant - ANSWER a
As the density of the air ___, the gas turbines output increases.
increases
diminishes
decreases
flatlines
fluctuates - ANSWER a
,The ____ of a quartz lamp heating element is a few seconds.
maintenance time
shutdown time
response time
cleaning time
startup time - ANSWER c
To increase the pH of condensate ____ should be added.
dissolved oxygen
dissolved carbon dioxide
neutralizing amines
coagulants
organics - ANSWER c
Garter springs hold the ____ in the proper position in a steam turbine.
condenser
baffles
carbon ring sealing glands
refractory
steel billets - ANSWER c
Cement may be used for the protective coating of a ____.
orifice plates
venturi tubes
hot water storage tank
u-tube manometers
pressure gauges - ANSWER c
Propeller fans distribute large volumes of air at ____.
high pressures
high moisture levels
high temperatures
low temperatures
low pressures - ANSWER e
Cement may be used for the protective coating of a ____.
u-tube manometers
, orifice plates
venturi tubes
pressure gauges
hot water storage tank - ANSWER e
The hot exhaust gases from the gas turbine combustor travel downstream
to be ____ in the turbine blading.
expanded
filtered
heating
contracted
cooled - ANSWER a
Recovery boilers must be shut down immediately when a tube leak
develops because water generates a violent physical reaction upon
contacting ____.
white liquor
black liquor
green liquor
molten smelt
cooking liquor - ANSWER d
In operating applications with high pressure and slow speed ____ are
commonly used.
coagulants
light oils
low viscosity mineral oils
low viscosity synthetic oils
heavy oils - ANSWER e
During the power stroke of a four-stroke engine, the ___ is combusted.
lubricating oil
hydrogen
air
fuel/air mixture
fuel - ANSWER d
____ are small relief valves that do not relieve pressure but are installed
in systems to warn of impending overpressurization.
