A.speed being made good
B.speed through the water
C.the set of the current
D.the depth of the water
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A.at all times
B.in the bottom return mode
C.in the volume reverberation mode
D.only when there is no current
A.has left hand twist
B.has inside threads on both ends
C.has outside threads on both ends
D.takes two men to operate
A.dead reckoning
B.pilotage
C.great circle sailing
D.geographic navigation
A.blows the fire back toward the vessel
B.comes over the bow
C.comes over the stern
D.comes over either beam
A.cooling the outside bulkheads with water
B.shutting all sources of air into the compartment
C.closing the sea chest
D.flooding the compartment with salt water
最新試題
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
A tide is called diurnal when（）.
Which of the following is not a form of precipitation?（）
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
What is it called when it is possible to ignite the vapour above the oil?（）
The circulation around a low pressure center in the Northern Hemisphere is（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
Fog is likely to occur when there is little difference between the dew point and the（）.
（）is on the panel of radar.