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- Subject
- Fuels and Combustionchemical-engineering › fuels-and-combustion
- Published
- 8 Mar 2019
- Last updated
- 28 May 2026
Explanation
The upper explosion limit of blast furnace gas is 71%, meaning it can ignite explosively at this concentration in a confined environment. Concentrations between 37% and 71% are within the explosive range, but 71% represents the maximum limit.
More Fuels and Combustion MCQs
Practice related questions from the same subject.
- 1.Identify the incorrect statement from the following options:
- 2.Identify the incorrect statement from the following options:
- 3.Identify the item that does not belong to the group below:
- 4.What is the approximate percentage of carbon by weight in air-dried wood?
- 5.Among the following gases, which one possesses the lowest calorific value measured in kcal per Nm³?
- 6.What does the turndown ratio of a gas burner represent?
- 7.Among the following gaseous fuels, which one possesses the lowest heat energy content?
- 8.How does the ignition temperature of a fuel in air compare to its ignition temperature in pure oxygen?
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