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）
“Difference in Depth of Modulation”的含义是（）。
- A、频差
- B、调制度和
- C、调制度差
- D、频偏
参考答案
更多 ““Difference in Depth of Modulation”的含义是（）。A、频差B、调制度和C、调制度差D、频偏” 相关考题
考题
Whereisspecificinformationregardingheight,width,depth,andweightofaPowerSystemsserverlocated?()
A.HardwareInfoCenterB.SystemPlanningToolC.OfferingInformationwebsiteD.TechnicalDeliveryandAssessmentGuide
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 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
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
A channel is started as having a controlling depth of 38 feet. Which statement is TRUE?_____A.At least 80% of the channel is cleared to the charted depth.B.At least 50% of the channel is cleared to the charted depth.C.100% of the channel depth is clear to 38 feet.D.The sides of the channel conform to at least 50% of the controlling depth.
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
Which statement is FALSE concerning the interleave depth value？（）A、A higher interleave depth provides more protection from burst of noise on the HFC networkB、Higher interleave depth increase downstream latencyC、Lower interleave depth cause some packet loss on typical HFC networksD、None ofthe above
考题
（）(富余水深) is the depth remaining under a ship’s bottom.A、Under-keel heightB、Under-keel clearanceC、Under-keel draftD、Under-keel depth
考题
单选题（）is the depth of the vessel at ship’s side from the upper deck to the lowest point of the keel.A
Extreme draftB
Molded draftC
Extreme depthD
Molded depth
考题
单选题An electronic depth finder operates on the principle that（）.A
radio signals reflect from a solid surfaceB
sound waves travel at a constant speed through waterC
radar signals travel at a constant speed through waterD
pressure increases with depth
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Which statement is FALSE concerning the interleave depth value？（）A
A higher interleave depth provides more protection from burst of noise on the HFC networkB
Higher interleave depth increase downstream latencyC
Lower interleave depth cause some packet loss on typical HFC networksD
None ofthe above
考题
单选题Point Judith Harbor of Refuge（）.A
is used mostly by towing vesselsB
has a maximum depth of 14 feet (4.3 meters) at MHWC
West Gap has a controlling depth of 24 feetD
is entered through the East Gap or the West Gap
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A wind has caused a difference between drafts starboard and port. This difference is（）.A
listB
heelC
trimD
flotation
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
热门标签
最新试卷
