Question 16 of 30
The reading of a combustible gas indicator indicates the percentage of the
A
lower explosive limit of a flammable gas concentration
B
upper explosive limit of a flammable gas concentration
C
concentration of flammable gas in a compartment
D
concentration by weight of nonflammable gas in a compartment
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Answer & Explanation
The correct answer is Option A: lower explosive limit of a flammable gas concentration.
A combustible gas indicator typically provides readings as a percentage of the Lower Explosive Limit (LEL), indicating how close the current gas concentration is to forming an explosive mixture.