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单选题
It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.
A
for my vessel crossing safely
B
my vessel is to cross safely
C
for my vessel to cross safely
D
for my vessel's crossing safely
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更多 “单选题It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.A for my vessel crossing safelyB my vessel is to cross safelyC for my vessel to cross safelyD for my vessel's crossing safely” 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 distance between the surface of the water and the tidal datum is the ______.A.range of tideB.height of tideC.charted depthD.actual water depth
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
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
The major components which determine the length of catenary in a deployed anchor cable are water depth，cable tension，and ______.A.environmental forcesB.bottom conditionsC.cable weightD.water density
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
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
You are anchoring in 16 fathoms of water．On a small to medium size vessel，the ______．A.Anchor may be dropped from the hawse pipeB.Anchor should be lowered to within 2 fathoms of the bottom before being droppedC.Scope should always be at least ten times the depth of the waterD.Scope should always be less than 5 times the depth of the water
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
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
In determining the scope of anchor line to pay out when anchoring a small boat, one must consider the ______.A.charted depth of water onlyB.depth of water, including tidal differencesC.time and date of anchoringD.type of anchor being used
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There is not（）depth of water around the area centered at the lighthouse.A
ampleB
sufficientC
enormousD
incredible
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What should you apply to a fathometer reading to determine the depth of water?（）A
Subtract the draft of the vesselB
Add the draft of the vesselC
Subtract the sea water correctionD
Add the sea water correction
考题
单选题The distance between the surface of the water and the tidal datum is the （）.A
range of tideB
height of tideC
charted depthD
actual water depth
考题
单选题You are anchoring in 16 fathoms of water．On a small to medium size vessel，the（）.A
Anchor may be dropped from the hawse pipeB
Anchor should be lowered to within 2 fathoms of the bottom before being droppedC
Scope should always be at least ten times the depth of the waterD
Scope should always be less than 5 times the depth of the water
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 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To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.A
weight of cable to weight of vesselB
weight of cable to weight of anchorC
length of anchor to depth of waterD
length of cable to depth of water
考题
单选题In bad weather，what length of chain should be used with a single anchor? （）A
3 times the depth of waterB
6 times the depth of waterC
10 times the depth of waterD
15 times the depth of water
考题
单选题In determining the scope of anchor line to pay out when anchoring a small boat，one must consider the（）.A
charted depth of water onlyB
depth of water，including tidal differencesC
time and date of anchoringD
type of anchor being used
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When anchoring a vessel under normal conditions，which scope of chain is recommended? （）A
Four times the depth of waterB
Two and one-half times the depth of waterC
Five to seven times the depth of waterD
Fifteen times the depth of water
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