towing line()
A、回头缆
B、拖缆
C、横缆
D、尾缆
A、回头缆
B、拖缆
C、横缆
D、尾缆
A、A.passing a tow bridle to the tug B、B.passing a messenger line C、C.heaving in the tow bridle D、D.service lines with rocket line throwers
A、The towing line between the two vessels should be clear of the water B、The towing line should be taut at all times between the vessels C、There should be a catenary so the line dips into the water D、None of the above
A、A.two towing lights in a vertical line B、B.a towing light in a vertical line above the sternlight C、C.two towing lights in addition to the sternlight D、D.a small white light in lieu of the sternlight
A、only a stern light B、a towing light above the stern light C、two towing lights in a vertical line D、two white lights in a vertical line
A、A.shock loading on the tow line is reduce B、B.towing speed is improved C、C.the vessel is more visible from the tug D、D.the catenary of the tow line is reduced
A、A.It automatically maintains tow line tension B、B.It prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken in C、C.As tension on the hawser increases,more line is taken in by the automatic towing engine D、D.As tension on the hawser decreases,more line is taken in by the automatic towing engine