A、is small
B、may be neglected
C、is useful
D、is considerable
更多“The alternating current generator supplying a load has a voltage drop resulted from the loadWhen the load has a lagging power factor this voltage drop （）.”相关的问题
A、the speed of the alternators B、the field strength of the machines C、the power factor of the alternators D、steam supply to the prime movers
A、The alternators are not generating the same voltages and should be adjusted on automatic voltage regulator rheostats B、Alternator frequencies are different and should be adjusted on the governor speed controllers C、Alternators are out of phase and should be tripped and paralleled again D、One alternator has lost one of its phases
A、amount of field excitation of the leading machine B、load-speed characteristics of the governors C、amount of field excitation to the lagging machine D、type of alternator
A、The breaker should be closed when one synchronizing lamp is dark and the other is bright B、The breaker should be closed when both synchronizing lamps are bright C、The frequency meter should be used to determine that the incoming alternator frequency is slightly higher than the bus D、A portable phase sequence indicator must be used to verify the information from the lamps
A、A.Reverse current protection B、B.Reverse power protection C、C.Synchronising device D、D.Frequency meter
A、It is any alternative path for best effort traffic. B、It is the next hop of the active route to a directly attached device. C、It is the next hop for a route from a qualified protocol. D、It is an alternative next hop for a static route.
A、current selection B、alternative language C、only lotusscript language D、other objects alternative language
A、A.starting the ME B、B.starting the emergency electric alternator C、C.driving the main turbine D、D.driving the turbocharger
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