网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
The soundings on the chart are based on the depth of water available at ______.
A.mean low water
B.mean lower low water
C.mean high water
D.mean high water springs
参考答案
更多 “ The soundings on the chart are based on the depth of water available at ______.A.mean low waterB.mean lower low waterC.mean high waterD.mean high water springs ” 相关考题
考题
Clearance gauges at bridges indicate ______.A.the height of the tideB.depth of water under the bridgeC.charted vertical clearance at mean low waterD.distance from the water to low steel of the bridge
考题
The height of a light is measured from which reference plane?A.Mean low waterB.Mean high waterC.Average water levelD.Geographical sea level
考题
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
Charted depth is the ______.A.vertical distance from the chart sounding datum to the ocean bottom，plus the height of tideB.vertical distance from the chart sounding datum to the ocean bottomC.average height of water over a specified period of timeD.average height of all low waters at a place
考题
The heights and soundings of Admiralty chart are expressed ______ in Fathoms ______ in Meters．A.either，orB.neither，norC.another，norD.other，or
考题
Charted depth is the ______.A.vertical distance from the tidal datum to the ocean bottom plus the height of the tideB.vertical distance from the tidal datum to the ocean bottomC.average height of water over a specified period of timeD.average height of all low waters at a place
考题
The recording fathometer produces a graphic record of the ______．A.bottom contour only up to depths of 100 fathomsB.depth underneath the keel against a time baseC.contour of the bottom against a distance baseD.depth of water against a distance base
考题
Air gap is the vertical distance between the bottom of the hull and the ______．A.Still water levelB.Wave crestC.Wave crest plus the charted water depth and tidal correctionsD.Wave crest plus the charted water depth and tidal correction and storm surge
考题
When taking soundings on a ship，coating the tape with chalk helps to ______．A.Better identify the correct readingB.Show the depth of any water in an oil tankC.Make the tape roll easierD.Reduce possibility of sparks
考题
All echo-sounders can measure the ______．A.Actual depth of waterB.Actual depth of water below keelC.Average depth from waterline to hard bottomD.Average depth of water to soft bottom
考题
Chart depth is the ______.A.vertical distance from the tidal datum to the ocean bottom, plus the height of tideB.vertical distance from the tidal datum to the ocean bottomC.average height of water over a specified period of timeD.average height of all low waters at a place
考题
Chart depth is the ______.A.vertical distance from the chart sounding datum to the ocean bottom, plus the height of tideB.vertical distance from the chart sounding datum to the ocean bottomC.average height of water over a specified period of timeD.average height of all low waters at a place
考题
In what units are heights and soundings in the chart? They are in ______.A.meters and fathomsB.fathoms and metersC.meter and fathomD.fathom and meter
考题
单选题The heights and soundings of Admiralty chart are expressed（）in Fathoms（）in Meters．A
either，orB
neither，norC
another，norD
other，or
考题
单选题When anchoring,it is a common rule of thumb to use a length of chain（）.A
five to seven times the depth of waterB
seven to ten times the depth of waterC
twice the depth of waterD
twice the depth of water plus the range of tide
考题
单选题In moderate wind and current what should be the length of chain with a single anchor?（）A
5 times the depth of the water in good holding groundB
10 times the depth of the water in shallow waterC
2 times the depth of the water in poor holding groundD
8 times the depth of the water in deep water
考题
单选题Air gap is the vertical distance between the bottom of the hull and the（）.A
still water levelB
wave crestC
wave crest plus the charted water depth and tidal correctionsD
wave crest plus the charted water depth and tidal correction and storm surge
考题
单选题You want to create a pie-style chart using the Chart Wizard. What must be you do to determine the fields available for use in this chart? （）A
Select the block that contains the data to appear in the pie chart. B
Select the table that contains the data to appear in the pie chart. C
Select the view that contains the data to appear in the pie chart. D
Nothing. The wizard will automatically create the pie chart based on the highlighted data.
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The controlling depth of the river is（）.A
the minimum depth of the river prescribed in the channel maintenance programB
the edge of a dredged channelC
the highest level to which the river may rise without floodingD
the least available water in a channel which limits the draft of boats and tows
考题
单选题The soundings on the chart are based on the depth of water available at （）.A
mean low waterB
mean lower low waterC
mean high waterD
mean high water springs
考题
单选题In determining a safe speed（）shall not be among those taken into account.A
the presence of the background light at nightB
the state of wind，sea and currentC
the number of crew on boardD
the draught in relation to the available depth of water
考题
单选题Charted depth is the（）.A
vertical distance from the tidal datum to the ocean bottom plus the height of the tideB
vertical distance from the tidal datum to the ocean bottomC
average height of water over a specified period of timeD
average height of all low waters at a place
考题
单选题Charted depth is the （）.A
vertical distance from the chart sounding datum to the ocean bottom，plus the height of tideB
vertical distance from the chart sounding datum to the ocean bottomC
average height of water over a specified period of timeD
average height of all low waters at a place
考题
单选题All echo-sounders can measure the（）.A
actual depth of waterB
actual depth of water below keelC
average depth from waterline to hard bottomD
average depth of water to soft bottom
考题
单选题The soundings on the imperial chart are measured in（）.A
FeetB
YardsC
FathomsD
Meters
热门标签
最新试卷