Question 1475 Deck General

The correct answer is D) below the "explosive range". If a cargo of kerosene is considered "too lean" to explode, it means the concentration of kerosene vapor in the air is below the lower explosive limit (LEL) for kerosene. When the concentration is below the LEL, there is not enough fuel present to sustain an explosion, even if an ignition source is present. Being below the explosive range indicates the cargo is not within the flammable or explosive limits, making it less hazardous. The other options are incorrect because being above the explosive range (A) or within the explosive range (B) would mean the cargo has enough fuel to potentially explode, and being above the lower explosive limit (C) is the same as being within the explosive range.