A.when approved by the lockmaster
B.when locking downbound
C.at no time
D.during high water only
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A.it increases the likelihood of collision between the towing vessel and the disabled vessel
B.recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towline
C.the monkey fist may injure someone
D.it may reduce the catenary and increase yawing
A.route
B.track
C.heading
D.course over the ground
A.course
B.track
C.heading
D.course over the ground
A.a difference in water pressure
B.the method of breaking up the water stream
C.the length of the applicator
D.All of the above
A.temperature of the air equals the temperature of the seawater
B.atmospheric pressure is 14.7 lbs. per square inch
C.relative humidity reaches 50%
D.air becomes saturated with water vapor
最新試題
The external flotation bladder of an immersion suit should be inflated（）.
Which statement about radio navigational warnings is TRUE（）.
The disadvantage of using a heaving line to pass a towline is that（）.
The complete details of a crude oil washing system aboard your vessel，including the operating sequences and procedures，design characteristics，a description of the system，and required personnel will be found in the（）.
The Certificate of Inspection on a passenger vessel of over 100 gross tons must be posted （）.
The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm （）.
Which instrument is most useful in forecasting fog（）.
The name and hailing port of a documented commercial vessel is（）.
The direction in which a vessel is steered is the course. The path actually followed is the （）.
The fog is lifted，so（）the radar．