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Power Eng Part A (Chptr 57) Questions And Answers With Verified Solutions 100% Correct!!!
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Power Eng Part A (Chptr 57) Questions And Answers With Verified Solutions 100% Correct!!!
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Power Eng Part A (Chptr 57) QuestionsAnd Answers With Verified Solutions
100% Correct!!!
The balanced equation for the complete combustion of hydrogen is: -
ANSWER✔✔2H2 + O2 = 2H2O + heat
Identify the combustion elements in coal:
1. Carbon
2. Hydrogen
3. Sulfur
4. Nitrogen - ANSWER✔✔1, 2, 3
Engineers must understand the importance of combustion in order to:
1. Order the right grade of fuel
2. Burn the fuel completely
3. Produce smokeless fires
4. Minimize the danger of explosion - ANSWER✔✔1, 2, 3, 4
When removing a steam atomizing oil burner from service, the proper sequence is:
- ANSWER✔✔Stop the oil, purge oil side, stop the steam, remove burner
Ethane is a component of natural gas and constitutes a percent volume of: -
ANSWER✔✔10 - 20%
If, during a flue gas analysis, the excess air to a boiler furnace is increased, the
percentage of: - ANSWER✔✔CO2 should decrease
, Combustible elements of a fuel are:
1. CO2
2. H2
3. C
4. H2O
5. S - ANSWER✔✔2, 3, 5
The approximate amount of excess air for fuel oil is: - ANSWER✔✔15%
The refining process for fuel oils involves separating the crude oil into end
products which have distinguishing characteristics such as specific gravity,
viscosity, and: - ANSWER✔✔Boiling point
In a steam atomizing oil burner, the _____ travels through the central portion of the
burner. - ANSWER✔✔Oil
If not enough air is given to an oil fired flame: - ANSWER✔✔The flame will be a
dark smoky flame
The balanced equation for the incomplete combustion of carbon is:
1. C + O2 = CO2 + heat
2. 2C + O2 = CO + heat
3. C + 2O2 = 2CO + heat
4. 2C + 2O2 = 4CO + heat
5. 2C + O2 = 2CO + heat - ANSWER✔✔2C + O2 = 2CO + heat
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