white light
red light
yellow light
blue light
单选题A vessel constrained by her draught shall，when risk of collision with another vessel in a crossing or head-on situation exists，（）.A apply the relevant Steering and Sailing Rules as a power-driven vesselB apply the relevant Steering and Sailing Rules as a Sailing vesselC apply the relevant Steering and Sailing Rules as a vessel not under commandD apply the relevant Steering and Sailing Rules as a vessel engaged in a towing operation
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单选题A towing light is（）.A shown below the stern lightB white in colorC displayed at the mastheadD a yellow light having the same characteristics as the stern light
单选题As defined in the Rules，a towing light is a yellow light having the same characteristics as a(n)（）.A masthead lightB all-round lightC sidelightD sternlight
单选题The towing light is a(n)（）.A flashing amber lightB yellow light with the same characteristics as the sternlightC all-round yellow lightD yellow light with the same characteristics as the masthead light
单选题A towing light is a yellow light having the same characteristics as a(n)（）A special flashing lightB anchor lightC sternlightD masthead light
单选题A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.A the masthead lights for a towing vesselB the lights for a vessel restricted in its ability to maneuverC sidelights，stern light and towing lightD All of the above
单选题A vessel towing a barge astern would show，at the stern（）.A only a stern lightB a towing light above the stern lightC two towing lights in a vertical lineD two white lights in a vertical line
