A vessel being towed astern，where the length of the tow exceeds 200 meters，will exhibit （）.

A . yellow lights at each end B . two red lights in a vertical line C . a black ball D . a diamond shape

A . No fog signal B . A prolonged blast at intervals never to exceed more than two minutes C . A prolonged blast followed by two short blasts at intervals never to exceed more than two minutes D . A prolonged blast followed by three short blasts at intervals never to exceed more than one minute

A . tow strain B . catenary length C . being in step D . Williamson's Tow

A . propulsion horsepower available B . pulling ability at cruise power C . towing winch capability D . pulling ability under static conditio

A . only the lights for a vessel towing B . only the lights for a vessel restricted in her ability to maneuver C . the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver D . the lights for a towing vessel and the lights for a vessel not under command

A . the masthead lights for a towing vessel B . the lights for a vessel restricted in its ability to maneuver C . sidelights，stern light and towing light D . All of the above

A . testing all alarm and detection systems B . breaking out and using the vessel's emergency equipment C . participation by selected crew members D . one person putting on protective clothing，if the vessel is so equipped

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

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

A . Length of the towline B . Height of the towline connection C . Longitudinal position of the towline connection D . Direction of opposing force

A . at times B . at any time C . at no time D . at moment

A . a Coast Guard inspector B . a registered professional engineer C . the owner or Master of the vessel D . a licensed electricia

A . pushed ahead B . towed alongside C . towed astern D . Any of the above

A . crew members using their arms B . crew members using the strong muscles of their legs C . fenders D . No fending is necessary due to the rugged construction of most towing vessel

A . readily accessible B . securely stowed C . stored in sealed containers D . stowed with the emergency provisio

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 . the masthead lights for a towing vessel B . the lights for a vessel restricted in her ability to maneuver C . sidelights，stern light，and towing light D . All of the above

A . all information contained on the barge's Certificate of Inspection B . the condition of all towing gear to be used C . all navigational aids to be used D . the barges load line and draft reading

A . forward masthead light B . after masthead light C . stern light D . All of the above

A . not exceed bare steerageway during the transit B . take a strain as soon as you can to control the tow C . come up to speed very slowly and maintain a safe speed D . come up to speed quickly，then cut back power considerably to ease the strai

A . it is overtaken by the tow B . it is pulled sideways by the tow C . the weight of the towing hawser causes loss of maneuverability D . the propeller is fouled by the towing hawser

A.testing all alarm and detection systems B.breaking out and using the vessel's emergency equipment C.participation by selected crew members D.one person putting on protective clothing，if the vessel is so equipped

A.pushed ahead B.towed alongside C.towed astern D.Any of the above