Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean ______.A.lower low waterB.high waterC.low waterD.sea level

题目

Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean ______.

A.lower low water

B.high water

C.low water

D.sea level

相似考题

1.Which routing algorithm is described below?It is a mechanism in which the sending station determines the route the frame. will follow andincludes the routing information with the flame；bridges read the routing information to determineif they should forward the frame．A．Fixed RoutingB．Spanning TreeC．Source RoutingD．Frame. Forwarding

2.RefertotheoutputshownonswitchSW1below：Warning：Spantreeportfaststartshouldonlybeenabledonportsconnectedtoasinglehost.Connectinghubs，concentrators，switches，bridges，etc.toafaststartportcancausetemporaryspanningtreeloops.Usewithcaution.Spantreeports4/1-24faststartenabled.Whatcommandcouldyouentertoreproducethisoutput？

3.Contour elevations on this chart refer to heights in feet above mean ______.A.lower low waterB.high waterC.low waterD.sea level

4.Both bridges are switches are being used throughout the Ezonexam LAN. Which of the following statements are true regarding bridges and switches in this network?(Choose 3)A. Switches are primarily software based while bridges are hardware based.B. Switches usually have a higher number of ports than most bridges.C. Bridges are frequently faster than switches.D. Bridges define broadcast domains while switches define collision domains.E. Both bridges and switches forward Layer 2 broadcasts.F. Both bridges and switches make forwarding decisions based on Layer 2 addresses.

参考答案和解析
正确答案：A
更多“Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet ab ”相关问题

  • 第1题：

    Normal pool elevation is the height in feet of the section of river above a dam. This height is measured from ______.

    A.low steel on the Huey P. Long Bridge

    B.mean sea level

    C.the local water table

    D.the minimum dam control level


    正确答案：B

  • 第2题：

    Below 600 feet ocean waters range from dimly lit to completely dark.

    A:inadequately
    B:hardly
    C:faintly
    D:sufficiently

    答案：C
    解析：
    本句意思：600英尺以下的海水从昏暗变至完全漆黑。dimly意思是“昏暗地，朦胧地”, 与faintly（微弱地，不清楚地）意思相近。inadequately不充足地；hardly几乎不，简直不；suffi-ciently足够地，充分地。

  • 第3题：

    共用题干
    The World's Longest Bridge

    Rumor has it that a legendary six-headed monster lurks in the deep waters of the Tyrrhenian Sea between Italy and the island of Sicily._______(46)When completed in 2010,the world's longest bridge will weigh nearly 300,000 tons一equivalent to the iceberg that sank the Titanic一and stretch 5 kilometers long."That's nearly 50 percent longer than any other bridge ever built."says structural engineer Shane Rixon.
    _______(47)They're suspension bridges,massive structures built to span vast water channels or gorges.A suspension bridge needs just two towers to shoulder the structure's mammoth weight, thanks to hefty supporting cables slung between the towers and anchored firmly in deep pools of cement at each end of the bridge.The Messina Strait Bridge will have two 54,100-ton towers,which will support most of the bridge's load.The beefy cables of the bridge,each 1.2 meter in diameter, will hold up the longest and widest bridge deck ever built.
    When construction begins on the Messina Strait Bridge in 2005,the first job will be to erect two 370 meter-tall steel towers._______(48)Getting these cables up will be something. It's not just their length一totally 5.3 kilometers一but their weight._______(49)
    After lowering vertical"suspender"cables from the main cables,builders will erect a 60- meter一wide 54,630一ton steel roadway,or deck一wide enough to accommodate 12 lanes of traffic.The deck's weight will pull down on the cables with a force of 70,500 tons.In return,the cables yank up against their firmly rooted anchors with a force of 139,000 tons一equivalent to the weight of about 100,000 cars. Those anchors are essential._______(50)

    _______（49）
    A:Some environmentalists are against the project on biological grounds.
    B:What do the world's longest bridges have in common?
    C: If true ,one day you might spy the beast while zipping（呼啸而过）across the Messina Strait Bridge.
    D:They're what will keep the bridge from going anywhere.
    E:The second job will be to pull two sets of steel cables across the strait,each set being a bundle of 44,352 individual steel wires.
    F: They will tip up the scales at 166,500 tons一more than half the bridge's total mass.

    答案：F
    解析：
    本空前文提到：传说，在意大利和西西里岛间的第勒尼安海的深处，潜伏着一头神奇的六头怪兽。选项C中有一个关键词beast，与第一句的monster相呼应。由此可以判断出与之匹配的选项是C：如果这是真的，有一天你可能在飞驶过墨西拿海峡桥时窥视到这头怪兽。所以选项C是正确答案。
    本空前文提到：这座桥桥长约5 000米，桥的结构工程师雪恩?里克森说：“它比有史以来最长的桥还长出约50%。”而后文的话题有所转移：它们都是吊桥，有着巨大的构架，横跨航道或峡谷间的巨大水域。这说明本空的内容应该起到一个很好的衔接上下文的作用，尤其要包含将本文主要讲的桥和其他桥进行比较的内容，由此可以判断出与之匹配的选项是B：那么，世界上最长的这些桥之间有什么共同点呢？ 所以选项B是正确答案。
    本空前文提到：墨西拿海峡桥的建造开始于2005年，那时要做的第一项工作是竖立起两座370米高的铁塔。本空后文又提到：把这些钢缆举起来很不容易。该空后所提的这些钢缆应该出现在所填句中并且顺承上文。由此可以判断出与之匹配的选项是E: 第二项工作将是在海峡两端拉起两套钢索，每一套绳索由44 352根单独的钢缆组成。所以选项E是正确答案。
    本空前文提到：这不仅仅体现在钢缆很长（共有5 300米），而且也体现在它们的重量。空前一句的重点落在重量这个概念上，所以下一句应该围绕桥的重量展开说明。由此可以判断出与之匹配的选项是F：它们将重达166 500吨，这个重量已超过了桥总重量的一半。所以选项F是正确答案。
    在做本题前，挑出剩下的两个选项A和D。本空前文提到：这些固定物是很必要的。由于选项A将话题转向环保主义者，而文章结尾句一般不提出新话题，加之通过内容判断，选项D中的they应该指的是上一句的固定物，上一句说的是其重要性，下一句说其功能，是对上一句观点的支持。所以选项D是正确答案。

  • 第4题：

    Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem?（）

    • A、Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
    • B、Ensure that cables A and B are straight-through cables.
    • C、Ensure cable A is plugged into a trunk port.
    • D、Ensure the switch has power.
    • E、Reboot all of the devices.
    • F、Reseat all cables.

    正确答案:B,D,F

  • 第5题：

    Which of the following statements are true regarding bridges and switches (Choose 3.)（）。

    • A、Switches are primarily software based while bridges are hardware based.
    • B、Both bridges and switches forward Layer 2 broadcasts.
    • C、Bridges are frequently faster than switches.
    • D、Switches have a higher number of ports than most bridges.
    • E、Bridges define broadcast domains while switches define collision domains.
    • F、Both bridges and switches make forwarding decisions based on Layer 2 addresses.

    正确答案:B,D,F

  • 第6题：

    单选题
    If you must jump from a ship，your posture should include（）.
    A

    holding down the life preserver against the chest with one arm crossing the other，covering the mouth and nose with a hand，and feet together

    B

    knees bent and held close to the body with both arms around legs

    C

    body straight and arms held tightly at the sides for feet first entry into the water

    D

    both hands holding the life preserver below the chin，with knees bent，and legs crossed


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    The information regarding ports such as buoyed channels,fairway,location and number of terminals,river channels,details of navigational marks,location of overhead bridges, underground cables etc. are shown in（）
    A

    small-scale charts

    B

    medium-scale charts

    C

    large-scale charts

    D

    natural scale charts


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    A crew member has suffered frostbite to the toes of both feet. You should（）.
    A

    immerse the feet in warm water

    B

    warm the feet with a heat lamp

    C

    warm the feet at room temperature

    D

    rub the feet


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    On every vessel，distress signals must be stowed（）.
    A

    on or near the navigating bridge

    B

    on the flying bridge not closer than 15 feet to any bulkhead

    C

    above the freeboard deck away from heat

    D

    in an enclosed space below the freeboard deck away from heat


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean （）.
    A

    lower low water

    B

    high water

    C

    low water

    D

    sea level


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    A cofferdam is（）.
    A

    any deck below the main deck and above the lowest deck

    B

    a member that gives fore-and-strength

    C

    made by placing two bulkhead a few feet apart

    D

    a heavy fore-and-aft beam under the deck


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    A cofferdam is（）.
    A

    any deck below the main deck and above the lowest deck

    B

    a member that gives fore-and-aft strength

    C

    made by placing two bulkheads a few feet apart

    D

    a heavy fore-and-aft beam under the deck


    正确答案： D
    解析： 暂无解析

  • 第13题：

    If you must jump from a ship，your posture should include ______．

    A.holding down the life preserver against the chest with one arm crossing the other，covering the mouth and nose with a hand，and feet together

    B.knees bent and held close to the body with both arms around legs

    C.body straight and arms held tightly at the sides for feet first entry into the water

    D.both hands holding the life preserver below the chin，with knees bent，and legs crossed


    正确答案：A

  • 第14题：

    Below 600 feet ocean waters range from faintly lit to completely dark.

    A:inadequately
    B:hardly
    C:dimly
    D:sufficiently

    答案：C
    解析：
    faintly“暗淡地、微弱地”。lit是light（照亮）的过去分词，也可作形容词。 a faintly lit lane“一条昏暗的胡同”。 dimly（暗淡地、昏暗地）与faintly意思相近。inadequately “不足”。hardly“几乎不”，例如：I can hardly hear him．我几乎听不到他说话。sufficiently“充分地、足够地”。

  • 第15题：

    Refer to the output shown on switch SW1 below：  Warning： Spantree port fast start should only be enabled on ports connected to a single host.Connecting hubs， concentrators， switches， bridges， etc. to a fast start port can cause temporaryspanning tree loops. Use with caution. Spantree ports 4/1-24 fast start enabled.  What command could you enter to reproduce this output？


    正确答案:set spantree portfast 4/1-24 enable。

  • 第16题：

    Which of the following statements are true regarding bridges and switches?（）

    • A、Switches are primarily software based while bridges are hardware based.
    • B、Both bridges and switches forward Layer 2 broadcasts.
    • C、Bridges are frequently faster than switches.
    • D、Switches have a higher number of ports than most bridges.
    • E、Bridges define broadcast domains while switches define collision domains.
    • F、Both bridges and switches make forwarding decisions based on Layer 2 addresses.

    正确答案:B,D,F

  • 第17题：

    When cabling a rack， which of the following is BEST practice？（）

    • A、 Use rack specific cabling hardware
    • B、 Let cables hang loosely behind the servers
    • C、 Channel all power cables down the sides， and all network cables down the center
    • D、 Keep cables close to the front of the rack for better access

    正确答案:A

  • 第18题：

    单选题
    When cabling a rack， which of the following is BEST practice？（）
    A

     Use rack specific cabling hardware

    B

     Let cables hang loosely behind the servers

    C

     Channel all power cables down the sides， and all network cables down the center

    D

     Keep cables close to the front of the rack for better access


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    As you approach Shreves cut-off you see Red River LandingGage (302.4 AHP) which reads 4.2 feet. Which of thefollowing statements is TRUE? （）
    A

    This reading is at the same elevation as the 6.2 ft. mark on the gage at Head of Passes

    B

    A vessel drawing 8 ft would be able to pass over the sill at Old River Lock

    C

    This reading is 6.4 feet below the Low Water Reference Plane

    D

    A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    Contour elevations on this chart refer to heights in feet above mean （）.
    A

    lower low water

    B

    high water

    C

    low water

    D

    sea level


    正确答案： D
    解析： 暂无解析

  • 第21题：

    问答题
    Refer to the output shown on switch SW1 below：  Warning： Spantree port fast start should only be enabled on ports connected to a single host.Connecting hubs， concentrators， switches， bridges， etc. to a fast start port can cause temporaryspanning tree loops. Use with caution. Spantree ports 4/1-24 fast start enabled.  What command could you enter to reproduce this output？

    正确答案： set spantree portfast 4/1-24 enable。
    解析： 暂无解析

  • 第22题：

    单选题
    Normal pool elevation is the height in feet of the section of river above a dam. This height is measured from（）.
    A

    low steel on the Huey P. Long Bridge

    B

    mean sea level

    C

    the local water table

    D

    the minimum dam control level


    正确答案： B
    解析： 暂无解析

  • 第23题：

    多选题
    Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem?（）
    A

    Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.

    B

    Ensure that cables A and B are straight-through cables.

    C

    Ensure cable A is plugged into a trunk port.

    D

    Ensure the switch has power.

    E

    Reboot all of the devices.

    F

    Reseat all cables.


    正确答案： C,F
    解析： 暂无解析

相关内容