Question 670Deck Safety70% to pass
Which of the following terms defines the minimum temperature required to ignite gas or vapor without a spark or flame being present?
AI Explanation
The correct answer is B) autoignition temperature.
Autoignition temperature is the minimum temperature required to ignite a gas or vapor without the presence of a spark or flame. This is the temperature at which the substance will spontaneously combust and ignite, even in the absence of an external ignition source.
The other options are incorrect:
A) Fire point is the lowest temperature at which a substance will continue to burn after being ignited.
C) Flash point is the lowest temperature at which a substance will produce enough vapor to form an ignitable mixture with air.
D) Lower explosive limit is the minimum concentration of a flammable vapor or gas in air, below which combustion cannot occur.
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