Question 1384 Deck General

The correct answer is D) In a cargo tank during "Butterworthing". During the tank cleaning process known as "Butterworthing", high-pressure jets of water are used to clean the interior of the cargo tanks. This process can create a "charged mist" within the tank, which is an electrically charged spray of water droplets. This charged mist can be a potential ignition source, and it is important to follow proper safety procedures to mitigate the risk of fire or explosion. The other answer choices are incorrect because they do not describe situations where a charged mist would be present. Option A refers to topping off a tank, which does not involve tank cleaning. Option B describes tank ballasting, which does not involve a charged mist. Option C refers to inerting operations, which are intended to reduce the risk of ignition, not create a charged mist.