Nylon line is better suited than manila for（）. A: towing alongside B: towing astern C: holding knots and splices D: resisting damage from chemical

If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.

31. As defined in the Rules, a towing light is a yellow light having the same characteristics as ______

A tug is “in irons” when held in a fixed position by（） A: the weight of its tow，its being anchored，or grounded B: the weight of its towing hawser on the bottom C: an adverse current D: lack of power or an engine breakdow

Do you require any further assistance ? My ship is safe now and no assistance is necessary.This VHF communication generally takes place during（）. A: salvage operation B: cargo discharging C: bunkering D: towing operatio