更多"A vessel being towed astern，where t"的相关试题:
[单项选择]A vessel or object being towed astern shall display a(n)（）.
A. forward masthead light
B. after masthead light
C. stern light
D. All of the above
[单项选择]A vessel being towed astern shall show at night（）.
A. the lights required for a power-driven vessel underway
B. only the required masthead lights
C. a sternlight only
D. sidelights and a sternlight
[单项选择]A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.
A. three masthead lights in a vertical line instead of either the forward or after masthead light
B. two masthead lights in a vertical line instead of either the forward or after masthead lights
C. two towing lights in a vertical line at the stern
D. a small white light aft of the funnel
[单项选择]A vessel being towed will show（）.
A. a forward masthead light
B. sidelights and a sternlight
C. a towing light
D. All of the above
[单项选择]A single vessel being towed alongside shall exhibit（）.
A. one all-round white light
B. sidelights and a sternlight
C. only the outboard sidelight and a sternlight
D. a masthead light，sidelights，and a sternlight
[单项选择]A partly submerged vessel or object being towed，which is not readily noticeable，shall show （） .
A. yellow lights at each end
B. two red lights in a vertical line
C. a black ball
D. a diamond shape
[单项选择]A jack-up drilling rig being towed must（）.
A. turn off all lights that interfere with the navigation lights
B. turn on all available working lights on deck
C. ring the bell rapidly for five seconds once a minute
D. display two black diamonds in a vertical line during the day
[单项选择]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 vessel
B. the lights for a vessel restricted in its ability to maneuver
C. sidelights，sternlight and towing light
D. All of the above
[单项选择]A power-driven vessel，when towing astern，shall show（）.
A. two towing lights in a vertical line
B. a towing light in a vertical line above the sternlight
C. two towing lights in addition to the sternlight
D. a small white light in lieu of the sternlight
[单项选择]A vessel towing a barge astern would show，at the stern（）.
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
[单项选择]Clean oil is achieved in a clarifier bowl where the impurities and water collect at the bowl （）.
A. bottom
B. top
C. center
D. periphery
[单项选择]（）are used for anchor gear in marine work where the chains must withstand the corrosive effects of seawater.
A. Chains
B. Wires
C. Ropes
D. Lines
[单项选择]Where payment of the hire is to be made in cash，the Charterer is not considered to have paid unless what the Shipowner receives is（）.
A. the equivalent of cash or as good as cash
B. greater than the specified amount of cash
C. less than the specified amount of cash
D. anything that Charterer likes to offer
[单项选择]In restricted visibility a towed vessel must sound a fog signal when it is（）.
A. the last vessel in the tow
B. the last vessel in the tow and it is carrying a crew
C. manned，regardless of its position in the tow
D. None of the above are correct
[单项选择]Back-up wires on a towed vessel provide（）.
A. a factor of safety
B. additional strength
C. a distribution of the towing load
D. All of the above
[单项选择]The length of a wave is the length（）.
A. of the wave's crest
B. of the wave's trough
C. measured from crest to trough
D. measured from crest to crest
[单项选择]诱导TH0细胞向TH1细胞极化的细胞因子是（）
A. IL-4
B. IFN-γ
C. IL-12
D. TNF-α
E. IL-10
