only the lights for a vessel towing
only the lights for a vessel restricted in her ability to maneuver
the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver
the lights for a towing vessel and the lights for a vessel not under command
第1题:
A tow astern is veering from side to side on its towline.The best way of controlling the action is to ______.
A.Trim the tow by the bow
B.Trim the tow by the stern
C.List the tow to windward
D.Adjust the length of the towing bridle
第2题:
An ocean tow is sinking in deep water. Attempts to sever the towing hawser are unsuccessful Which action should now be taken?______.
A.Abandon the towing vessel.
B.Radio for emergency assistance.
C.Slip the towline and allow it to run off the drum.
D.Secure all watertight openings on the towing vessel.
第3题:
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?
A.When the towing vessel enters the fog
B.When the drilling rig enters the fog
C.When the towing vessel can no longer be seen from the rig
D.Immediately
第4题:
Abandon the towing vessel
Radio for emergency assistance
Slip the towline and allow it to run off the drum
Secure all watertight openings on the towing vessel
第5题:
increase control of the tow
prevent the towing vessel from going in irons
make the towing vessel less maneuverable
reduce shock stress on the towing hawser
第6题:
A chain bridle is used when towing astern because it ______.
A.is easy to connect
B.provides an effective catenary and absorbs shock due to its weight
C.makes rigging a swivel unnecessary
D.prevents the tow from yawing by the drag of the chains in a seaway
第7题:
If practical, when shall a manned vessel being towed sound her fog signal?______.
A.Immediately before the towing vessel sounds hers
B.Immediately after the towing vessel sounds hers.
C.As close to the mid-cycle of the towing vessel’s signals as possible
D.At any time as long as the interval is correct
第8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 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
第9题:
When the towing vessel enters the fog
When the drilling rig enters the fog
When the towing vessel can no longer be seen from the rig
Immediately
第10题:
vessel towing astern
barge pushed ahead
vessel towing astern only when the length of her tow exceeds 200 meters
this signal does not exist in international waters