A .26.7nmile
B .31.3nmile
C .22.9nmile
D .35.0nmile
[单选题]英版海图某灯塔灯质为:Fl(2)6s64m20M,若测者眼高为9m,则该灯塔灯光的最大可见距离为()。A .25nmileB .23nmileC .24nmileD .20nmile
[单选题]英版海图某灯塔灯高81m,额定光力射程24M,已知测者眼高为9m,如当时实际气象能见度为8nmile,则该灯塔灯光的最大可见距离是()。A .8.0nmileB .24.0nmileC .25.1nmileD .以上多错
[单选题]英版海图某灯塔灯高36m,额定光力射程17M,已知测者眼高为9m,则能见度良好(10nmile)时该灯塔灯光的最大可见距离是()。A .12.7nmileB .17.0nmileC .18.8nmileD .19.8nmile
[单选题]英版海图某灯塔灯高81m,额定光力射程24M,已知测者眼高为9m,则能见度良好(10nmile)时该灯塔灯光的最大可见距离是()。A .26.4nmileB .25.0nmileC .24.0nmileD .23.5nmile
[单选题]某轮眼高9m,某灯塔高25m,射程14nmile,罗航向045°,该灯塔初见时的罗方位035°,风流很小,忽略不计,则该灯塔的正横距离为()。A .2.′4B .2.′7C .2.′9D .无法计算
[单选题]英版海图某灯塔灯高69ft,该轮额定光力射程18nmile,你船眼高45ft,当气象能见度为10nmile时,该灯塔灯高最大可见距离为()。A .18.0nmileB .17.2nmileC .12.2nmileD .10.0nmile
[单选题]英版海图某灯塔灯高64m,额定光力射程24M,已知测者眼高为25m,如当时实际气象能见度为6nmile,则该灯塔灯光的最大可见距离是()。A .6.0nmileB .24.0nmileC .27.2nmileD .以上多错
[单选题]英版海图某灯塔灯高64m,额定光力射程20M,已知测者眼高为16m,如当时实际气象能见度为12nmile,则该灯塔灯光的最大可见距离是()。A .12.0nmileB .20.0nmileC .25.1nmileD .以上多错
[单选题]英版海图(额定光力射程)上某灯塔的灯质为Fl(2)6s81m22M,测者眼高为9m。则能见度为10nmile时,该灯塔灯光的最大可见距离为()。A .23.5nmileB .22nmileC .25.1nmileD .无法确定
[单选题]英版海图(额定光力射程)上某灯塔的灯质为Fl(2)6s49m22M,测者眼高为9m。则能见度为12nmile时,该灯塔灯光的最大可见距离为()。A .大于22nmileB .等于22nmileC .大于20.9nmileD .等于20.9nmile