A、A.hydraulic
B、B.electric
C、C.steam
D、D.diesel
更多“On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.”相关的问题
A、from side to side in the tanks of the vessel B、from fore to aft in the tanks of a vessel C、in and out of a vessel that is holed in a wing tank D、in and out of a vessel that is holed in a peak tank
A、maintain a strict watch on the barge from the towing vessel B、fly a red flag from the towing vessel C、open the tops of all empty tanks on the barge D、take hourly soundings of any loaded tanks on the barge
A、open and individual tank valves open B、open and the individual tank valves closed C、closed and the individual tank valves closed D、closed and the individual tank valves open
A、volume of liquid in the tank B、volume of displacement of the vessel C、location of the tank in the vessel D、height of the center of gravity of the vessel
A、volume of displacement of the vessel B、dimensions of the surface of the liquid C、amount of liquid in slack tanks D、specific gravity of the liquid in the tank
A、A.reduce the free surface effect and raise the KG B、B.not have any effect on free surface and raise the KG C、C.reduce the free surface effect and lower the KG D、D.not have any effect on free surface and lower the KG
A、Open the intake valve to an adjacent tank B、Set out drip pans and sawdust and begin to mop up the spill C、Signal the shore control point to shutdown D、Close the valve on the tank vent line
A、Hose connections to the tank must be made with a minimum of three bolts B、There must be water pressure on the fire main C、You must shut down if another vessel comes alongside D、If transferring at anchor，you must display a red flag by day and a red light at night
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