“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

题目

“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
相似考题

1.What is length (width, depth) of Hold No.1?

2.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

3.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

4.Whereisspecificinformationregardingheight,width,depth,andweightofaPowerSystemsserverlocated?()A.HardwareInfoCenterB.SystemPlanningToolC.OfferingInformationwebsiteD.TechnicalDeliveryandAssessmentGuide

更多““Difference in Depth of Modulati”相关问题

  • 第1题：

    All echo-sounders can measure the ______．

    A.Actual depth of water

    B.Actual depth of water below keel

    C.Average depth from waterline to hard bottom

    D.Average depth of water to soft bottom


    正确答案：B

  • 第2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 only

    B.depth of water, including tidal differences

    C.time and date of anchoring

    D.type of anchor being used


    正确答案：B
    小船抛锚，在确定送出锚链长度时，必须考虑包括潮汐不同的水深。

  • 第3题：

    （）(富余水深) is the depth remaining under a ship’s bottom.

    • A、Under-keel height
    • B、Under-keel clearance
    • C、Under-keel draft
    • D、Under-keel depth

    正确答案:A

  • 第4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 draft

    B

    Molded draft

    C

    Extreme depth

    D

    Molded depth


    正确答案： C
    解析： 暂无解析

  • 第5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 water

    B

    seven to ten times the depth of water

    C

    twice the depth of water

    D

    twice the depth of water plus the range of tide


    正确答案： C
    解析： 暂无解析

  • 第6题：

    名词解释题
    震源深度（focus depth）

    正确答案： 从震中到震源的距离，叫震源深度（focus depth）。
    解析： 暂无解析

  • 第7题：

    单选题
    The height of tide is the （）.
    A

    depth of water at a specific time due to tidal effect

    B

    difference between the depth of the water and the area's tidal datum

    C

    difference between the depth of the water and the high water tidal level

    D

    difference between the depth of the water at high tide and the depth of the water at low tide


    正确答案： A
    解析： 暂无解析

  • 第8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 network

    B

    Higher interleave depth increase downstream latency

    C

    Lower interleave depth cause some packet loss on typical HFC networks

    D

    None ofthe above


    正确答案： B
    解析： 暂无解析

  • 第9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 depth

    B

    added to or subtracted from the charted depth

    C

    multiplied by the charted depth

    D

    divided by the charted depth


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    A wind has caused a difference between drafts starboard and port. This difference is（）.
    A

    list

    B

    heel

    C

    trim

    D

    flotation


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    In bad weather，what length of chain should be used with a single anchor? （）
    A

    3 times the depth of water

    B

    6 times the depth of water

    C

    10 times the depth of water

    D

    15 times the depth of water


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    When anchoring a vessel under normal conditions，which scope of chain is recommended? （）
    A

    Four times the depth of water

    B

    Two and one-half times the depth of water

    C

    Five to seven times the depth of water

    D

    Fifteen times the depth of water


    正确答案： A
    解析： 暂无解析

  • 第13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.


    正确答案：C
    航道被标注为38英尺的限制水深，则水道百分之百都拥有38英尺的水深。

  • 第14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 network
    • B、Higher interleave depth increase downstream latency
    • C、Lower interleave depth cause some packet loss on typical HFC networks
    • D、None ofthe above

    正确答案:D

  • 第15题：

    纵深防御 defence in depth


    正确答案:纵深防御概念是安全原理的重要组成部分。此概念必须贯彻于安全有关的全部活动，包括与组织、设计或人员行为有关的方面，以保证这些活动均置于重叠措施的防御之下，即使有一种防御失效，亦将得到补偿或纠正。

  • 第16题：

    单选题
    An electronic depth finder operates on the principle that（）.
    A

    radio signals reflect from a solid surface

    B

    sound waves travel at a constant speed through water

    C

    radar signals travel at a constant speed through water

    D

    pressure increases with depth


    正确答案： D
    解析： 暂无解析

  • 第17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 ground

    B

    10 times the depth of the water in shallow water

    C

    2 times the depth of the water in poor holding ground

    D

    8 times the depth of the water in deep water


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    Air gap is the vertical distance between the bottom of the hull and the（）.
    A

    still water level

    B

    wave crest

    C

    wave crest plus the charted water depth and tidal corrections

    D

    wave crest plus the charted water depth and tidal correction and storm surge


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    Stand of the tide is that time when（）.
    A

    the vertical rise or fall of the tide has stopped

    B

    slack water occurs

    C

    tidal current is at a maximum

    D

    the actual depth of the water equals the charted depth


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    Point Judith Harbor of Refuge（）.
    A

    is used mostly by towing vessels

    B

    has a maximum depth of 14 feet (4.3 meters) at MHW

    C

    West Gap has a controlling depth of 24 feet

    D

    is entered through the East Gap or the West Gap


    正确答案： D
    解析： 暂无解析

  • 第21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 vessel

    B

    weight of cable to weight of anchor

    C

    length of anchor to depth of water

    D

    length of cable to depth of water


    正确答案： D
    解析： 暂无解析

  • 第22题：

    判断题
    在Unity引擎中，Depth属性值最大的摄像机会比Depth属性值小的摄像机更晚绘制么？
    A

    对

    B

    错


    正确答案： 错
    解析： 暂无解析

  • 第23题：

    单选题
    All echo-sounders can measure the（）.
    A

    actual depth of water

    B

    actual depth of water below keel

    C

    average depth from waterline to hard bottom

    D

    average depth of water to soft bottom


    正确答案： B
    解析： 暂无解析

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