A、a single white light forward
B、two masthead lights in a vertical line
C、two towing lights in a vertical line
D、two all-round red lights where they can best be seen
更多“A 20-meter power-driven vessel pushing ahead or towing alongside will display（）.”相关的问题
A、A.Megohm meter, insulation light and synchroscope B、B.Synchroscope, synchro light and megohm meter C、C.Shore power switch, insulation light and synchroscope D、D.Megohm meter, insulation light and shore power switch
A、delivering the same quantity of fuel to each cylinder for each power stroke according to engine load B、maintaining the metering adjustment for a reasonable period under all load conditions C、timing fuel injection to obtain maximum power and good fuel economy D、distributing the fuel to all parts of the combustion chamber for proper combustion
A、Ammeter and changeover switch B、Power factor meter C、Synchroscope D、Reverse sequence relay
A、Ammeter and changeover switch B、Power factor meter C、Synchroscope D、Reverse sequence relay
A、in series with the power source and load B、in parallel with the power source and load C、insuring correct polarity D、using the lowest range possible to prevent instrument damage
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