A towing vessel and her tow are severely restricted in their ability to change course. When making way，the towing vessel will show ONLY（）.

A . In sight of another B . Sights the another C . Not in sight of the other D . In sight of one another

A . There shall be at least 3 ventilator ducts open to the atmosphere B . At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge C . At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge D . Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartment

A . Both towheads will tend to drift apart，and the overtaking vessel will be slowed down B . Both towheads will tend to drift together，and the overtaking vessel will be slowed down C . Both towheads will tend to drift apart，and the overtaken vessel will be slowed down D . Both towheads will tend to drift together，and the overtaken vessel will be slowed dow

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 . change course B . slow down C . heave to D . adjust tow line length

A . displacement B . stability C . towrope pull D . propeller desig

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 . length between the perpendiculars B . length along the waterline C . length overall D . registered length

A . the towing vessel should slip first B . the vessel towed should slip first C . they should slip simultaneously D . either vessel may slip first

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 . whether B . should C . shall D . if

A . the ship is made fast B . the ship‟s first line is sent ashore C . the ship is dredging anchor D . the ship‟s pilot disembark

A . a vessel towing by pushing ahead B . a power-driven vessel，not towing C . a barge being pushed ahead D . either answer A or answer B

A . right，correct and safe B . sufficient，efficient and coefficient C . nice，tidy and in good working condition D . tight，staunch and strong

A . shock loading on the tow line is reduce B . towing speed is improved C . the vessel is more visible from the tug D . the catenary of the tow line is reduced

A . Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lights B . Three lights in a vertical line，the highest and lowest red and the middle white，ONLY C . Anchor lights ONLY D . Anchor lights and sidelights ONLY

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 . 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.A vessel shall proceed near the other vessel on her starboard side on the narrow channel since it is safe and practicable B.A vessel shall avoid proceeding near the starboard outer limit of a narrow channel as long as it is safe and practicable C.A vessel shall avoid proceeding along the channel because it is not safe and practicable D.A vessel shall proceed near the starboard outer limit of a narrow channel to the degree in which it is safe and practicable

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