Ignition temperature of a fuel in air is ______________ that in pure oxygen?
Correct answer: A. More than
- A. More than
- B. Less than
- C. Equal to
- D. Either more or less; depends on the type of fuel
Explanation
Fuel ignites more readily in pure oxygen, so its ignition temperature is lower than in air. Nitrogen in air dilutes the oxygen and absorbs heat without supporting combustion.
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