Question 777Deck Safety70% to pass
When a ship's low-pressure CO2 fixed fire extinguishing system is activated from a remote location, what determines the quantity of CO2 being released into a selected space?
AI Explanation
The correct answer is D) A pneumatic timer controls each discharge selector valve, and is preset for each space.
The quantity of CO2 released into a selected space in a low-pressure CO2 fixed fire extinguishing system is determined by a pneumatic timer that controls the discharge selector valve. This timer is preset to release the appropriate amount of CO2 for the specific protected space, based on the volume of that space.
The other options are incorrect because: A) The number of nozzles does not determine the quantity of CO2 released; C) The CO2 tank is not partitioned into sections for each space, but rather has a single main tank; and B) The temperature of the space does not control the discharge - the preset timer does.
Related Questions
#775 A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that _______________.#776 What would be a major consequence of the refrigeration system for a low-pressure CO2 fixed fire extinguishing system remaining inoperable? #778 The normal designed CO2 storage tank temperature and pressure associated with a ship's low-pressure CO2 fixed fire extinguishing system is approximately _______________.#779 Actuating the CO2 fixed system causes the shutdown of the _______________.#780 The space containing carbon dioxide cylinders shall be properly ventilated and designed to prevent an ambient temperature in excess of _______________.