A fire pump may be used for other purposes if（）.<br>A:the other services are run off a reducing station with a pressure gage<br>B:one of the required pumps is kept available for use on the fire main system at all times<br>C:no relief valves are installed<br>D:all of the above conditions are met

A fire pump may be used for other purposes if（）.
A:the other services are run off a reducing station with a pressure gage
B:one of the required pumps is kept available for use on the fire main system at all times
C:no relief valves are installed
D:all of the above conditions are met

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