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Tide in this water area is________in direction ENE.
A.getting
B.setting
C.being
D.having
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更多 “ Tide in this water area is________in direction ENE.A.gettingB.settingC.beingD.having ” 相关考题
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The distance between the surface of the water and the tidal datum is the______．A.height of tideB.charted depthC.actual water depthD.range of tide
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In the navigation,_______cause the shafting over load most easilyA.stopping the main engine suddenlyB.changing the main engine running direction suddenlyC.the sailing from the shallow water area to the deep water areaD.the ship's trim too much
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You will find information about the duration of slack water in the ______.A.Tidal Current TablesB.Tide TablesC.American Practical NavigatorD.Sailing Directions
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The height of tide is the ______.A.depth of water at a specific time due to tidal effectB.difference between the depth of the water and the area's tidal datumC.difference between the depth of the water and the high water tidal levelD.difference between the depth of the water at high tide and the depth of the water at low tide
考题
The meaning of ebb tide is that ______.A.tide is falling from high water to low waterB.tide is rising from low water to high waterC.tide is reaching to a highest levelD.tide is reaching to a lowest level
考题
The period at high or low tide during which there is no change in the height of the water is called the ______.A.range of the tideB.plane of the tideC.stand of the tideD.reversing of the tide
考题
Data relating to the direction and velocity of rotary tidal currents can be found in the ______.A.Mariner's GuideB.Tidal Current TablesC.Nautical AlmanacD.Tide Tables
考题
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is ______．A.the actual depthB.added to or subtracted from the charted depthC.multiplied by the charted depthD.divided by the charted depth
考题
单选题In some river mouths and estuaries the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream，and is called a（）.A
seicheB
boreC
boundary waveD
surge
考题
单选题（） is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.A
Recommended Direction of Traffic FlowB
RoundaboutC
Separation Zone or LineD
Precautionary Area
考题
单选题The daily predictions of the times and heights of high and low water for a selection of Standard Ports are given in（）.A
Admiralty Maritime CommunicationsB
Admiralty Tide TablesC
a comprehensive guide for the yachtsmanD
ALRS
考题
单选题In some parts of the world there is often a slight fall in tide during the middle of the high water period. The effect is to create a longer period of stand at higher water. This special feature is called a(n)（）.A
apogean tideB
double high waterC
perigean tideD
bore
考题
单选题What describes a flood current（）.A
Horizontal movement of the water toward the land after high tideB
Horizontal movement of the water toward the land after low tideC
Horizontal movement of the water away from the land following high tideD
Horizontal movement of the water away from the land following low tide
考题
单选题In the navigation, cause the shafting over load most easily（）A
stopping the main engine suddenlyB
changing the main engine running direction suddenlyC
the sailing from the shallow water area to the deep water areaD
the ship’s trim too much
考题
单选题The height of tide is the （）.A
depth of water at a specific time due to tidal effectB
difference between the depth of the water and the area's tidal datumC
difference between the depth of the water and the high water tidal levelD
difference between the depth of the water at high tide and the depth of the water at low tide
考题
单选题Stand of the tide is that time when（）.A
the vertical rise or fall of the tide has stoppedB
slack water occursC
tidal current is at a maximumD
the actual depth of the water equals the charted depth
考题
单选题To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.A
the actual depthB
added to or subtracted from the charted depthC
multiplied by the charted depthD
divided by the charted depth
考题
单选题A tide is called diurnal when（）.A
only one high and one low water occur during a lunar dayB
the high tide is higher and the low tide is lower than usualC
the high tide and low tide are exactly six hours apartD
two high tides occur during a lunar day
考题
单选题Current changing in direction and rising and falling in value is （）.A
ACB
DCC
generatorD
fresh water generator
考题
单选题The tide（）.It’s 2 hours before low water，and（）your present position you will be aground at low water.A
falls／inB
has been falling／onC
has fallen／atD
is falling／in
考题
单选题The meaning of ebb tide is that （）.A
tide is falling from high water to low waterB
tide is rising from low water to high waterC
tide is reaching to a highest levelD
tide is reaching to a lowest level
考题
单选题One of the causes of ocean currents is density differences in the water. This is true because （）.A
in an area of high density the water's surface is lower than in an area of low densityB
surface water flows from an area of high density to one of low densityC
the lesser the density gradient the freer the water is to moveD
it is the density differences that cause the currents to stay in the troughs
考题
单选题The period at high or low tide during which there is no change in the height of the water is called the （）.A
range of the tideB
plane of the tideC
stand of the tideD
reversing of the tide
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