ABSA B1 Study Bank - American Boiler Safety Association
COMPLETE EXAM LATEST VERSION 2026-2027 QUESTIONS
AND ANSWERS
A simple combined cycle power generation system can consist of:
a. A single gas turbine generator
b. A HRSG (heat recovery steam generator)
c. A single steam turbine-generator
d. Condenser
e. All of the above - answer>>e. all of the above
The HRSG has supplemental firing in the form of duct burners. These are coal fired and are used
to add additional heat to the boiler coals
A True
B False - answer>>B False
The main application for _________ boilers is steam generation using gas turbine exhaust gas
as a heat source.
A Fluidized bed
B HRSG
C Once through
D Steam flooding - answer>>B
The Kraft process uses sodium sulphide(NaS04) as a make up chemical.
A True
,B False - answer>>B False
In the black liquor process combustion air is fed at three elevations of the furnace: primary,
secondary and _______
A Upper
B Lower
C Tertiary
D After - answer>>C
The black liquor droplets must be ______ enough to minimize entrainment in the combustion
gases.
a. small
b. large
c. dispersed
d. fine - answer>>B
The primary function of the recovery Boiler is to process_______ liquor
A White
B Green
C Black
D Orange - answer>>C
List 5 functions of the auxiliary fuel burners:
1 Raise steam during start up
2 sustain a stable ignition while establishing a Char bed
3 Stabilize conditions during upsets in the black liquor feed
,4 Produce extra steam as required by the process of for power production
5 Burn out the char bed when shutting down
6 maintain furnace temperatures
A 1, 2, 3, 4 & 5
B 3, 4, 5 & 6
C 1, 2 & 3
D 1, 2, 3, 4, 5 & 6 - answer>>A
If water contacts molten smelt, a violent explosion will result. It is not a _______ reaction but a
_________ reaction.
a. chemical, physical
b. physical, chemical
c. violent, mild
d. small, large - answer>>A
If the black liquor is too ______, it too can result in an explosion.
a. strong
b. thin
c. weak
d. thick - answer>>C
Heat recovery started to be added to the refuse incinerators, as did strict air pollution
guidelines. The basic incinerators with waist heat recovery have evolved into_______Boilers
with integral stroker's
, A Packaged
B Fire tubed
C Open hearth
D Water wall - answer>>D
Combustion products from burning municipal waste are very_________
A Hot
B Corrosive
C Many
D Wet - answer>>B
There is also corrosion caused by _________ in refuse-fired boilers.
a. chlorides
b. fuels
c. materials
d. burning - answer>>A
The higher the tube metal temperature, the ________ the degree of tube metal loss.
a. less
b. greater
c. minimum
d. smaller - answer>>B
Corrosion of the________ furnace area of the boiler can be severe during refuse firing
COMPLETE EXAM LATEST VERSION 2026-2027 QUESTIONS
AND ANSWERS
A simple combined cycle power generation system can consist of:
a. A single gas turbine generator
b. A HRSG (heat recovery steam generator)
c. A single steam turbine-generator
d. Condenser
e. All of the above - answer>>e. all of the above
The HRSG has supplemental firing in the form of duct burners. These are coal fired and are used
to add additional heat to the boiler coals
A True
B False - answer>>B False
The main application for _________ boilers is steam generation using gas turbine exhaust gas
as a heat source.
A Fluidized bed
B HRSG
C Once through
D Steam flooding - answer>>B
The Kraft process uses sodium sulphide(NaS04) as a make up chemical.
A True
,B False - answer>>B False
In the black liquor process combustion air is fed at three elevations of the furnace: primary,
secondary and _______
A Upper
B Lower
C Tertiary
D After - answer>>C
The black liquor droplets must be ______ enough to minimize entrainment in the combustion
gases.
a. small
b. large
c. dispersed
d. fine - answer>>B
The primary function of the recovery Boiler is to process_______ liquor
A White
B Green
C Black
D Orange - answer>>C
List 5 functions of the auxiliary fuel burners:
1 Raise steam during start up
2 sustain a stable ignition while establishing a Char bed
3 Stabilize conditions during upsets in the black liquor feed
,4 Produce extra steam as required by the process of for power production
5 Burn out the char bed when shutting down
6 maintain furnace temperatures
A 1, 2, 3, 4 & 5
B 3, 4, 5 & 6
C 1, 2 & 3
D 1, 2, 3, 4, 5 & 6 - answer>>A
If water contacts molten smelt, a violent explosion will result. It is not a _______ reaction but a
_________ reaction.
a. chemical, physical
b. physical, chemical
c. violent, mild
d. small, large - answer>>A
If the black liquor is too ______, it too can result in an explosion.
a. strong
b. thin
c. weak
d. thick - answer>>C
Heat recovery started to be added to the refuse incinerators, as did strict air pollution
guidelines. The basic incinerators with waist heat recovery have evolved into_______Boilers
with integral stroker's
, A Packaged
B Fire tubed
C Open hearth
D Water wall - answer>>D
Combustion products from burning municipal waste are very_________
A Hot
B Corrosive
C Many
D Wet - answer>>B
There is also corrosion caused by _________ in refuse-fired boilers.
a. chlorides
b. fuels
c. materials
d. burning - answer>>A
The higher the tube metal temperature, the ________ the degree of tube metal loss.
a. less
b. greater
c. minimum
d. smaller - answer>>B
Corrosion of the________ furnace area of the boiler can be severe during refuse firing
