In selecting a tug for moving a vessel，consideration should be given to its（）.
1、An anemometer on a moving vessel measu
An anemometer on a moving vessel measures（）.Aapparent wind speed onlyBtrue wind speed and true wind directionCtrue wind speed onlyDapparent wind speed and true wind directio
2、A tug is best positioned for towing an
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.Adirectly astern...
3、In order for a vessel to be engaged in
In order for a vessel to be engaged in fishing she must be（）.AunderwayBusing gear which extends more than 50 meters outboardCusing a seine of some typeDusing gear which restricts her maneuverability
4、A tug may be in danger of tripping whe
A tug may be in danger of tripping when（）.Atowed sideways by an overwhelming force on the towlineBher tow moves parallel to and forward on either side of the tugCthe tow is no longer directly astern but moves up on her quarterDAll of the above
5、The distance a vessel moves parallel t
The distance a vessel moves parallel to the original course from the point where the rudder is put over to any point on the turning circle is called the（）.AadvanceBdrift angleCpivoting pointDtransfer
6、The distance a vessel moves at right a
The distance a vessel moves at right angles to the original course，when a turn of 180°has been completed，is called the（）.AadvanceBpivoting pointCtactical diameterDkick