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单选题
Prior to getting underway in fresh or brackish water，the Master must（）.
A
log the density of the water
B
secure all overboard discharges
C
take on fresh water ballast
D
clean the sides with fresh water
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考题
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考题
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单选题Prior to getting underway，the Master or person in charge of a vessel must（）.A
conduct a fire drillB
conduct a boat drillC
log the fore and aft draft marksD
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All hand-hole/manhole covers should be tightened up as much as possible to preclude any leaksD
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单选题In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?（）A
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单选题（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.A
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考题
单选题When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?（）A
Once a dayB
At the change of every watchC
Only when in fresh or brackish waterD
Prior to getting underway
考题
单选题_____ most of the earth's surface is covered by water, fresh water is very rare and precious.A
AsB
OnceC
IfD
Although
考题
单选题When is the density of the water required to be logged in the logbook of a ship?（）A
Any time the vessel moves from water of one density into waters of a different densityB
Prior to getting underway when the vessel is floating in fresh or brackish waterC
Only when the vessel moves from fresh water into salt waterD
The density of the water is not required to be logged in the unofficial logbook
考题
单选题In motorships，there are two main circuits, （）.A
one salt water, one fresh waterB
one salt water, one fuelC
one fresh water, one fuelD
one steam, one fuel
考题
单选题Vessel underway means that a vessel is（）.A
on the wayB
at anchorC
made fast to a terminalD
moving against water
考题
单选题Allowance for fresh water refers to（）.A
the provision to be provided when the vessel sails in fresh water areaB
the fresh water to be carried by a vesselC
the allowance of fresh water for each crew member when in distress at seaD
the amount of free board decreased when sailing in fresh water area
考题
单选题When must the Master or person in charge of a ship log the position of load line marks in relation to the surface of the water in the logbook?（）A
Once a dayB
At the change of every watchC
Only when in fresh or brackish waterD
Prior to getting underway
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