A.180
B.150
C.120
D.100
[单选题]当风速为20m/s,水深h=20m时,根据经验,单锚泊出链长度约为()。A.180mB.150mC.120mD.100m
[单选题]当风速为20m/s,水深h=20m时,根据经验,单锚泊出链长度约为:()A . 180mB . 150mC . 120mD . 100m
[单选题]当风速为20m/s,水深h=20m时,根据经验,单锚泊出链长度约为:().A . 180mB . 150mC . 120mD . 100m
[单选题]当风速为30m/s,水深h=20m时,根据经验,单锚泊出链长度约为:()A . 265mB . 245mC . 225mD . 205m
[单选题]当风速为20m/s时,根据经验,单锚泊出链长度与水深h关系为:()A . 3h+90mB . 3h+125mC . 4h+90mD . 4h+145m
[单选题]当风速为20m/s时,根据经验,单锚泊出链长度与水深h关系为:().A . 3h+90mB . 3h+125mC . 4h+90mD . 4h+145m
[单选题]当风速为30m/s时,根据经验,单锚泊出链长度与水深h关系为:()A . 3h+125mB . 3h+145mC . 4h+125mD . 4h+145m
[单选题]当风速为30m/s时,根据经验,单锚泊出链长度与水深h关系为:().A . 3h+125mB . 3h+145mC . 4h+125mD . 4h+145m
[单选题]一般来说,锚泊的船舶当风速为20m/s时,其出链长度S为().A .3倍水深加90米;B .4倍水深加145米;C .5倍水深加90米;D .6节落水即可。
[单选题]按经验,出链长度S=4h+145m(H为水深),其相适应的风速限制为:()A . 15m/sB . 20m/sC . 25m/sD . 30m/s