Question 769Deck Safety70% to pass
A fixed carbon dioxide extinguishing system for a machinery space, designed WITHOUT a stop valve in the line leading to the protected space, is actuated by .
AI Explanation
The correct answer is B) one control.
According to the regulations, a fixed carbon dioxide extinguishing system for a machinery space that is designed without a stop valve in the line leading to the protected space must be actuated by a single control. This is because the lack of a stop valve means the system cannot be isolated from the protected space, so it must be designed to discharge the entire contents of the carbon dioxide supply upon actuation.
The other answer choices are incorrect because they do not align with the specific requirements for a fixed carbon dioxide system without a stop valve. The system would not require three controls (option A) or two controls (option C), and option D is not correct since the system must be actuated by a single control.
Related Questions
#767 In a fixed carbon dioxide extinguishing system for a machinery space, designed WITH a stop valve in the line leading to the protected space, the flow of CO2 is established by actuating _______________.#768 Which of the following statements is true concerning the control activators, i.e., pull-handles, push-buttons or levers, for a space protected by a CO2 fixed fire extinguishing system? #770 The carbon dioxide cylinders of a fixed fire extinguishing system may be located inside the protected space, if the quantity of CO2 required to protect that space is not more than _______________.#771 In a fixed CO2 fire extinguishing system where pressure from pilot cylinders is used to release the CO2 from the main bank of cylinders, the number of required pilot cylinders shall be at least _______________.#772 When pilot cylinder pressure is used as a means to release the CO2 from a fixed fire extinguishing system consisting of four storage cylinders, the number of pilot cylinders shall be at least _______________.