A twin-screw ship going ahead on the otarboard screw only tends to move().
A、in a straight line
B、to port
C、from side to side
D、to starboard
A、in a straight line
B、to port
C、from side to side
D、to starboard
A、Go ahead on both engines with the rudder hard to one side,if on a twin-screw vessel B、Back down with the rudder hard to one side,if on a single-screw vessel C、Take advantage of the tendency to back to port,if on a twin-screw vessel D、Turn so that the tendency to back into the wind can be used,if on a single-screw vessel
A、permits the rudder to move faster B、generates more power C、can turn without using her rudder D、can suck the water away from the rudder
A、correct trim will be obtained more easily B、drag effect will be cancelled out C、side forces will be eliminated D、speed will be increased
A、forward spring line and going slow ahead on the inboard engine B、after spring line and going slow astern on the outboard engine C、forward spring line and going slow ahead on both engines D、forward spring line and going slow ahead on the outboard engine
A、If one screw is stopped,the ship will turn toward the side of the stopped screw B、The principal force which turns the ship is set up by the wake against the forward side of the rudder C、Turning response by use of the rudder only is greater than on a single-screw vessel D、With the rudder amidships,the ship will steer a fairly steady course
A、If one screw is stopped,the ship will turn toward the side of the stopped screw B、The principal force which turns the ship is set up by the wake against the forward side of the rudder C、Turning response by use of the rudder only is greater than on a single-screw vessel D、With the rudder amidships,the ship will steer a fairly steady course
A、Move bodily to port B、Move bodily to starboard C、Move in a zig-zag motion D、Steer a fairly straight course