A.doubled
B.quadrupled
C.unchanged
D.cut in half
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A.voltage regulator
B.reverse power relay
C.reverse current relay
D.governor control switch
A.field excitation of both units is adjusted
B.governors of both units are adjusted
C.phase sequence is altered
D.kilowatt load is evenly divided
A.are less expensive
B.require less maintenance
C.can be started across the line
D.offer a more effective means of controlling speed
A.Alternators
B.Wave guides
C.Exciters
D.Amplidynes
A.quartered
B.unchanged
C.doubled
D.quadrupled
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
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