A.only after two hours in the water
B.only after four hours in the water
C.before entry into the water
D.upon entry into the water
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A.when approved by the lockmaster
B.when locking downbound
C.at no time
D.during high water only
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
最新試題
Which channel and mode should be used when initiating a distress alert transmission（）.
While proceeding to a distress site，you hear the words “Seelonce mayday” on the radiotelephone.Which action should you take（）.
The dangerous semicircle of a typhoon in the Southern Hemisphere is that area（）.
The damage to a vessel is over $25，000. Who must notify the nearest Coast Guard Marine Safety or Marine Inspection Office as soon as possible?（）
The datum from which the predicted heights of tides are reckoned in the tide tables is（）.
The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to（）.
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 port State control officer or the surveyor authorized by the port State Administration must be aware that（）may be carried on product carriers.
The damage to a vessel is over $25，000. Who must notify the nearest Coast Guard Marine Safety or Marine Inspection Office as soon as possible? （）
The port State control officer will ensure that（）is performed by all crude carriers either required to have a crude oil washing system or where the owner or operator chooses to install a crude oil washing system.