Question 295Safety & Environmental - 1st Asst/Chief
70% to passIf flammable vapors have penetrated a gas free space, which of the following actions would be the most hazardous to perform?
AOpening switches in the space to de-energize circuits.
BClosing switches adjacent to the space to operate vent fans.
CLeaving electrical circuits energized in the space.
DSecuring all power to the space from a remote location.
AI Explanation
The correct answer is A) Opening switches in the space to de-energize circuits. Opening switches in a space with flammable vapors present is the most hazardous action, as it can create an electrical spark that ignites the vapors. According to Coast Guard regulations, the safest approach is to secure all power to the space from a remote location (option D) to avoid any potential ignition sources. Closing switches to operate vent fans (option B) or leaving the circuits energized (option C) are also less risky than opening switches within the space.
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