ABSA 4B Exam Test Bank | 1,500 Questions with
Verified Answers | Latest 2025/2026 update.
Internal ____ is not required for dynamic type compressors.
seals
lubrication
pressure monitoring
corrosion monitoring
temperature monitoring - ...(ANSWERS)....b
Low pressure or high pressure are the two primary classifications of ____.
centrifugal pumps
sump pumps
boilers
draft fans
pressure controllers - ...(ANSWERS)....e
The boiler feedwater becomes increasingly ____ as it approaches the
measurement of zero.
acidic
,neutral
softer
basic
alkaline - ...(ANSWERS)....a
The following hydrocarbon(s) may be entrained in a natural gas stream:
Propane
Butane
Ethane
Methane
All of the above - ...(ANSWERS)....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 - ...(ANSWERS)....e
,Every shift the boiler water should be ____.
filled with dissolved solids
tested
condensed
replaced
evaporated - ...(ANSWERS)....b
Sodium sulphite is a commonly used ____ in boilers.
oxygen scavenger
carbon dioxide scavenger
coagulant
pH inhibitor
flocculant - ...(ANSWERS)....a
Cement may be used for the protective coating of a ____.
u-tube manometers
orifice plates
venturi tubes
pressure gauges
, hot water storage tank - ...(ANSWERS)....e
The hot exhaust gases from the gas turbine combustor travel downstream to be
____ in the turbine blading.
expanded
filtered
heating
contracted
cooled - ...(ANSWERS)....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 - ...(ANSWERS)....d
In operating applications with high pressure and slow speed ____ are commonly
used.
Verified Answers | Latest 2025/2026 update.
Internal ____ is not required for dynamic type compressors.
seals
lubrication
pressure monitoring
corrosion monitoring
temperature monitoring - ...(ANSWERS)....b
Low pressure or high pressure are the two primary classifications of ____.
centrifugal pumps
sump pumps
boilers
draft fans
pressure controllers - ...(ANSWERS)....e
The boiler feedwater becomes increasingly ____ as it approaches the
measurement of zero.
acidic
,neutral
softer
basic
alkaline - ...(ANSWERS)....a
The following hydrocarbon(s) may be entrained in a natural gas stream:
Propane
Butane
Ethane
Methane
All of the above - ...(ANSWERS)....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 - ...(ANSWERS)....e
,Every shift the boiler water should be ____.
filled with dissolved solids
tested
condensed
replaced
evaporated - ...(ANSWERS)....b
Sodium sulphite is a commonly used ____ in boilers.
oxygen scavenger
carbon dioxide scavenger
coagulant
pH inhibitor
flocculant - ...(ANSWERS)....a
Cement may be used for the protective coating of a ____.
u-tube manometers
orifice plates
venturi tubes
pressure gauges
, hot water storage tank - ...(ANSWERS)....e
The hot exhaust gases from the gas turbine combustor travel downstream to be
____ in the turbine blading.
expanded
filtered
heating
contracted
cooled - ...(ANSWERS)....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 - ...(ANSWERS)....d
In operating applications with high pressure and slow speed ____ are commonly
used.
