海船船员考试
单选题If the current and wind are in the same direction，the sea surface represents a wind speed （）.A lower than actually existsB higher than actually existsC that actually existsD that has no proportional relationship
题目
lower than actually exists
higher than actually exists
that actually exists
that has no proportional relationship
相似问题和答案
第1题：
If the current and wind are in opposite directions，the sea surface represents ______.
A.a greatly reduced wind speed
B.a higher wind speed than what really exists
C.a lower wind speed than what really exists
D.more turbulent winds
第2题：
In the absence of a route leading from seaward，the conventional direction of buoyage generally follows ______．
A.an anti-clockwise direction around land masses
B.a clockwise direction around land masses
C.an anticlockwise direction around sea masses
D.a clockwise direction around sea masses
第3题：
The best estimate of the wind direction at sea level can be obtained from observing the direction of the ______.
A.cloud movement
B.vessel heading
C.waves
D.swells
第4题：
For determining the amount of chains used in anchoring operation, which one of the following factors would’t be considered?______.
A.selection of landmarks
B.character of sea bottom
C.strength of current and wind force
D.radius of ship swing to wind or tide
在锚泊操作中确定锚链的长度，以下哪一项不被考虑？陆标的选择
第5题：
The velocity of the apparent wind can be more than the true wind，and come from the same direction，if certain conditions are present．One condition is that the ______．
A.Ship's speed must be less than the true wind velocity
B.True wind must be from dead astern
C.True wind velocity must be faster than the ship's speed
D.True wind must be from dead ahead
第6题：
When recording the wind direction in the weather log，you would report the ______．
A.direction the wind is blowing toward
B.direction the wind is blowing from
C.duration of the maximum gust of wind
D.wind chill factor
第7题：
When operating in an area where sea ice and icebergs are present，which statement is TRUE ________．
A.Icebergs may travel in a direction many degrees different from the sea ice
B.Both icebergs and sea ice will move in approximately the same direction and at the same speed
C.Icebergs and sea ice will move in the same direction，but at different speeds due to the sail effect of the berg
D.Icebergs and sea ice will move in the same direction，but the iceberg will move slower because of its underwater bulk
第8题：
If the current and wind are in the same direction，the sea surface represents a wind speed ______.
A.lower than actually exists
B.higher than actually exists
C.that actually exists
D.that has no proportional relationship
第9题：
A wind vane on a moving vessel shows ______.
A.dead reckoning wind direction
B.true wind direction
C.apparent wind direction
D.estimated wind direction
运动的船上的风向标指示视风的方向。
第10题：
In the Northern Hemisphere a wind is said to veer when the wind ______.
A.changes direction clockwise, as from north to east, etc
B.changes direction counterclockwise, as from south to east, etc
C.changes direction violently and erratically
D.remains constant in direction and speed
在北半球大风的风向会顺时针旋转，例如北到东。