The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the ().
A、bridge control panel
B、disconnect links
C、governor relay box
D、main switchboard
A、bridge control panel
B、disconnect links
C、governor relay box
D、main switchboard
A、the ship security plan B、the company security plan C、the port security plan D、the national security plan
A、last part of the exhaust stroke, and the first part of the intake stroke B、last part of the intake stroke only C、early part of the injection stroke only D、early part of the power stroke
A、in many places a counter current flows in opposition to the main current close to the bank B、current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind C、as speed is reduced,the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions D、when close to the berth in a head current,there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive forces