3A2: Chapter 3 Latest Questions All
Answered Correctly 2026 Updated.
A fluidized bed of limestone will significantly reduce _____ emissions by the combination of
sulphur dioxide with the limestone.
Select one:
A. Sulphur dioxide
B. Nitrous oxide
C. Carbon dioxide
D. Oxygen
E. Nitrogen - Answer A
The advantages of natural gas as a boiler fuel include:
1. Clean burning, no ash is produced
2. Cost of the fuel
3. Easily mixed with air
4. Requires large diameter transmission lines
5. Does not require extensive handling equipment
Select one:
A. 1, 2, 3
B. 2, 3, 4
C. 3, 4, 5
D. 1, 3, 5
E. 1, 2, 4 - Answer D
The combustibles in fuel are:
1. Hydrocarbons
2. Carbon
3. Nitrogen
4. Sulphur
5. Hydrogen
Select one:
A. 1, 2, 3, 4
B. 1, 2, 4, 5
C. 3, 4, 5
, D. 2, 4, 5
E. 1, 2, 3, 4, 5 - Answer B
In a typical analysis of sour natural gas the percentage by volume of methane would be:
Select one:
A. 88%
B. 78%
C. 60%
D. 50%
E. 40% - Answer B
The maximum CO2 content of flue gas for coal is approximately:
Select one:
A. 19%
B. 10%
C. 15.5%
D. 12%
E. 17% - Answer A
Boiler fuel is analyzed into its elements in order to draw conclusions on such things as the:
1. Efficiency of air heaters
2. Fuel's burning characteristics
3. Fuel's heating value
4. Amount of air required for combustion
5. Possibility of a furnace explosion
Select one:
A. 2, 3, 4
B. 1, 2, 3
C. 1, 2, 3, 4, 5
D. 3, 4, 5
E. 2, 4, 5 - Answer A
To measure the heat value of coal the instrument used is a:
Select one:
A. Anemograph
Answered Correctly 2026 Updated.
A fluidized bed of limestone will significantly reduce _____ emissions by the combination of
sulphur dioxide with the limestone.
Select one:
A. Sulphur dioxide
B. Nitrous oxide
C. Carbon dioxide
D. Oxygen
E. Nitrogen - Answer A
The advantages of natural gas as a boiler fuel include:
1. Clean burning, no ash is produced
2. Cost of the fuel
3. Easily mixed with air
4. Requires large diameter transmission lines
5. Does not require extensive handling equipment
Select one:
A. 1, 2, 3
B. 2, 3, 4
C. 3, 4, 5
D. 1, 3, 5
E. 1, 2, 4 - Answer D
The combustibles in fuel are:
1. Hydrocarbons
2. Carbon
3. Nitrogen
4. Sulphur
5. Hydrogen
Select one:
A. 1, 2, 3, 4
B. 1, 2, 4, 5
C. 3, 4, 5
, D. 2, 4, 5
E. 1, 2, 3, 4, 5 - Answer B
In a typical analysis of sour natural gas the percentage by volume of methane would be:
Select one:
A. 88%
B. 78%
C. 60%
D. 50%
E. 40% - Answer B
The maximum CO2 content of flue gas for coal is approximately:
Select one:
A. 19%
B. 10%
C. 15.5%
D. 12%
E. 17% - Answer A
Boiler fuel is analyzed into its elements in order to draw conclusions on such things as the:
1. Efficiency of air heaters
2. Fuel's burning characteristics
3. Fuel's heating value
4. Amount of air required for combustion
5. Possibility of a furnace explosion
Select one:
A. 2, 3, 4
B. 1, 2, 3
C. 1, 2, 3, 4, 5
D. 3, 4, 5
E. 2, 4, 5 - Answer A
To measure the heat value of coal the instrument used is a:
Select one:
A. Anemograph
