Catenary as applied to tow lines denotes the（）.

A vessel travelling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as（）.

In towing，heaving lines are used for（）.

In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.

One major advantage of the round turn maneuver in a man overboard situation is that it（）.

In order for a vessel to be engaged in fishing she must be（）.

For the deepest water when rounding a bend in a river，you should navigate your vessel（）.

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（）.

It is easier to dock a right-hand，single-screw vessel（）.

In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should（）.