海船船员考试
单选题In moderate wind and current what should be the length of chain with a single anchor?（）A 5 times the depth of the water in good holding groundB 10 times the depth of the water in shallow waterC 2 times the depth of the water in poor holding groundD 8 t
题目
5 times the depth of the water in good holding ground
10 times the depth of the water in shallow water
2 times the depth of the water in poor holding ground
8 times the depth of the water in deep water
相似问题和答案
第1题：
The best time to work a boat into a slip is ______.
A.when the wind is against you
B.with the current setting against you
C.at slack water
D.with a cross current
船舶进出港地工作的最好时间是在平潮。
第2题：
Solid green arrows on the main body of a pilot chart indicate ______.
A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes
第3题：
A、To make money
B、To develop skills
C、To win
D、To make friends
第4题：
A vessel is equipped with twin propellers，both turning outboard with the engines half ahead.If there is no wind or current and the rudders are amidships，what will happen?
A.The bow will swing to starboard
B.The bow will swing to port
C.The vessel will steer a zigzag course
D.The vessel will steer a fairly straight course
第5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6题：
In Beaufort Scale，the wind force 7 with speed of 28-33 knots is defined as ________ ．
A.Moderate gale
B.Near gale
C.Strong gale
D.Whole gale
第7题：
What is the major advantage of a rhumb line track?
A.The vessel can steam on a constant heading (disregarding wind，current，etc)
B.The rhumb line is the shortest distance between the arrival and departure points
C.It is easily plotted on a gnomonic chart for comparison with a great circle course
D.It approximates a great circle on east-west courses in high latitudes
第8题：
Food should be taken in moderate quantity only when one feels hungry.
第9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10题：
The lockmaster has given you permission to tie off on the lower guide wall to wait your turn to lock through．What should you be most concerned with ________．
A.A downbound vessel
B.An upbound vessel
C.Current reaction when the lock chamber is being emptied
D.Current reaction when the lock chamber is being filled