A、week
B、2 weeks
C、month
D、3 months
更多“An emergency generator, driven by an internal combustion engine, shall be tested under load for a minimum of 2 hours at least once every （）”相关的问题
A、dangerous over-speeding B、a loss of lube oil pressure C、activation of the fixed CO2 system for the emergency generator space D、all of the above
A、an electrical interlock system B、an automatic paralleling trip switch C、the synchronizing oscilloscope D、the reverse current relay
A、The generator and bus transfer section B、The 450 volt, 60 cycle, 3 phase bus C、The 120 volt, 3 phase, 60 cycle bus D、The 24 volt DC bus
A、there is a minor emergency B、there is an actual emergency C、there were a minor emergency D、there were an actual emergency
A、A.distribution boards B、B.section boards C、C.emergency switch boards D、D.main switch boards
A、Control panel of main generator B、Control panel of emergency generator C、Paralleling panel D、Load panel of main generator
A、Paralleling panel B、Load panel C、Emergency generator control pane D、Main generator control pane
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