Question 811 Deck Safety

The correct answer is D) Pull pin, squeeze grip. This is the correct answer because the standard procedure for operating a portable CO2 fire extinguisher is to first pull the pin to release the handle, then squeeze the grip to discharge the CO2 agent onto the fire. This allows the user to properly aim and apply the CO2 to extinguish the fire. The other options are incorrect because: A) Turning the cylinder upside-down would not properly disperse the CO2; B) Pointing the horn down would not allow the CO2 to be directed at the fire; and C) Breaking the rupture disc would be an unsafe and improper way to activate the extinguisher.