A.be switched off by the duty officer
B.be switched on by the duty officer
C.be switched off automatically
D.be switched on automatically

A.connect to the busbar when the load increasing
B.supply power specially to charging panel
C.be put into operation during the ship arriving at or leaving port
D.ensure the power supply to critical equipment after the main switchboard out of power

A.Ammeter
B.Voltmeter
C.Wattmeter
D.Synchroscope

A.argo winch
B.Windlass
C.Steering gear
D.Air compressor

A.Emergency fire pump
B.Windlass
C.Main sea water pump
D.Fresh water pump

A.Accommodation lighting
B.Windlass
C.Main sea water pump
D.Compressor

A.Navigation lamp
B.Windlass
C.Main sea water pump
D.Compressor

A.Ammeter and changeover switch
B.Speed governor device
C.Synchroscope
D.Wattmeter

A.Control panel
B.Paralleling panel
C.Load panel
D.Busbar

A.Overflow valve
B.Reducing valve
C.Balancing valve
D.Reducing valve or balancing valve

A.overflow valve
B.reducing valve
C.relief valve
D.sequence valve