{
  "version": "2026-11-14",
  "mainQuestions": 98,
  "mainConcepts": 67,
  "cards": [
    {
      "id": "C001",
      "refs": [
        1
      ],
      "category": "常用通信",
      "question": "What is general cargo?",
      "answer": "General cargo is different kinds of cargo stowed together in one hold.",
      "zh": "杂货：不同种类的货物同舱积载。",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C002",
      "refs": [
        2
      ],
      "category": "常用通信",
      "question": "What is your current speed and course?",
      "answer": "My speed is six knots, and my course is one two zero degrees.",
      "zh": "航速6节，航向120度。",
      "note": "示例数字；实问按题目给定数据回答。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C003",
      "refs": [
        3
      ],
      "category": "常用通信",
      "question": "What does fairway speed mean?",
      "answer": "It means a safe speed for navigating in a fairway.",
      "zh": "航道内安全航速。",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C004",
      "refs": [
        4,
        5,
        6,
        70
      ],
      "category": "遇险紧急安全",
      "question": "Which mode is used for safety or urgency communication by NBDP?",
      "answer": "FEC mode is used.",
      "zh": "NBDP安全／紧急广播使用FEC。",
      "note": "第4题 alerting 用词不严谨：NBDP文字通信与DSC报警要区分。保留旧题知识；2024现代化后不再要求HF NBDP遇险安全通信设备。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C005",
      "refs": [
        7,
        11,
        12,
        83,
        88
      ],
      "category": "遇险紧急安全",
      "question": "What does MAYDAY mean, or what signal precedes a distress call?",
      "answer": "MAYDAY is the distress signal.",
      "zh": "MAYDAY＝遇险。",
      "note": "若问完整呼叫开头，答 MAYDAY, MAYDAY, MAYDAY。呼叫开头三遍；不能理解成电文每一处都三遍。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C006",
      "refs": [
        8,
        13,
        14,
        15,
        92
      ],
      "category": "遇险紧急安全",
      "question": "What does PAN PAN mean, or what signal precedes an urgency call?",
      "answer": "PAN PAN is the urgency signal.",
      "zh": "PAN PAN＝紧急。",
      "note": "第15题 emergency 用法含混；是否遇险看是否严重且迫近、需要立即援助。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C007",
      "refs": [
        9,
        10,
        16,
        17,
        86,
        89,
        95
      ],
      "category": "遇险紧急安全",
      "question": "What does SECURITE mean, or what signal precedes a safety call?",
      "answer": "SECURITE is the safety signal.",
      "zh": "SECURITE＝安全。",
      "note": "第10题可答 A safety message will follow. 原文 security 应改为 safety；不是保安通信。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C008",
      "refs": [
        18
      ],
      "category": "遇险紧急安全",
      "question": "How many times is MAYDAY spoken in a distress call?",
      "answer": "Three times.",
      "zh": "遇险呼叫开头三遍。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C009",
      "refs": [
        19
      ],
      "category": "遇险紧急安全",
      "question": "How many times is PAN PAN spoken in an urgency call?",
      "answer": "Three times.",
      "zh": "PAN PAN 整组重复三遍。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C010",
      "refs": [
        20
      ],
      "category": "遇险紧急安全",
      "question": "How many times is SECURITE spoken in a safety call?",
      "answer": "Three times.",
      "zh": "安全呼叫开头三遍。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C011",
      "refs": [
        21
      ],
      "category": "遇险紧急安全",
      "question": "How many times is MAYDAY RELAY spoken in a distress relay call?",
      "answer": "Three times.",
      "zh": "转发遇险呼叫开头三遍。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C012",
      "refs": [
        22
      ],
      "category": "遇险紧急安全",
      "question": "Does urgency traffic have priority over other traffic except distress?",
      "answer": "Yes. Only distress traffic has higher priority.",
      "zh": "遇险优先于紧急，紧急优先于安全及常规。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C013",
      "refs": [
        23,
        24,
        25,
        73,
        94
      ],
      "category": "遇险紧急安全",
      "question": "What is included in a radiotelephone distress message?",
      "answer": "MAYDAY, ship identity, position, nature of distress, assistance required, persons on board, and other useful information.",
      "zh": "遇险信号、船舶身份、位置、险情、所需援助、船上人数、其他有用信息。",
      "note": "第73题材料另列时间，给船位时可补UTC时间。问完整程序还要加呼叫格式。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C014",
      "refs": [
        26
      ],
      "category": "遇险紧急安全",
      "question": "What is an urgency message?",
      "answer": "It is an urgent message about the safety of a ship or a person.",
      "zh": "关于船舶或人身安全的紧急信息。",
      "note": "不能把 urgency 和 grave and imminent danger 混为一谈；严重迫近危险需要立即援助用distress。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C015",
      "refs": [
        27,
        77
      ],
      "category": "遇险紧急安全",
      "question": "What is a safety message?",
      "answer": "It is a message containing important navigational or meteorological warnings.",
      "zh": "重要航行或气象警告。",
      "note": "照片写 security message，按其上下文纠正为 safety message。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C016",
      "refs": [
        28
      ],
      "category": "遇险紧急安全",
      "question": "Can an RCC impose radio silence on stations interfering with distress traffic?",
      "answer": "Yes. The station controlling distress traffic may impose radio silence.",
      "zh": "控制遇险通信的台站可要求干扰台静默。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C017",
      "refs": [
        29,
        72,
        98
      ],
      "category": "遇险紧急安全",
      "question": "What must a station do if it interferes with distress traffic?",
      "answer": "Stop transmitting and keep radio silence.",
      "zh": "停止发射，保持无线电静默。",
      "note": "若追问信号，答 SEELONCE MAYDAY；并非只有现场指挥才可控制遇险通信。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C018",
      "refs": [
        30,
        31
      ],
      "category": "设备海区",
      "question": "What is the approximate daytime range of VHF?",
      "answer": "About thirty nautical miles.",
      "zh": "约30海里，资料记忆值。",
      "note": "并非固定覆盖边界；实际受天线高度等影响，海区按连续DSC覆盖定义。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C019",
      "refs": [
        32,
        33
      ],
      "category": "设备海区",
      "question": "What is the approximate daytime range of MF?",
      "answer": "About one hundred and fifty nautical miles.",
      "zh": "约150海里，资料记忆值。",
      "note": "实际覆盖随传播与台站条件变化。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C020",
      "refs": [
        34
      ],
      "category": "设备海区",
      "question": "What is the approximate daytime range of HF?",
      "answer": "More than two hundred nautical miles.",
      "zh": "超过200海里，按照片口径。",
      "note": "这是非常粗略的旧题答案，HF传播没有这个固定下限。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C021",
      "refs": [
        35,
        36,
        71
      ],
      "category": "设备海区",
      "question": "What provides position information to GMDSS equipment?",
      "answer": "GPS provides the position information.",
      "zh": "GPS提供船位。",
      "note": "广义为GNSS；题目按照片说GPS即可。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C022",
      "refs": [
        37
      ],
      "category": "设备海区",
      "question": "How often is a non-battery reserve source of energy tested?",
      "answer": "Once a week.",
      "zh": "非电池备用能源每周测试。",
      "note": "按该训练材料口径；实船另遵循船旗国、设备及检查要求。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C023",
      "refs": [
        38
      ],
      "category": "设备海区",
      "question": "How often is a DSC internal self-test carried out?",
      "answer": "Once a day, without radiating a signal.",
      "zh": "每日内部自检，不发射信号。",
      "note": "内部自检不要和对岸台发射测试呼叫混淆。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C024",
      "refs": [
        39
      ],
      "category": "设备海区",
      "question": "What radio equipment is required for sea area A2?",
      "answer": "VHF DSC, MF DSC, an MSI receiver, an EPIRB, and search and rescue locating devices.",
      "zh": "VHF与MF DSC、MSI接收设备、EPIRB、搜救定位设备。",
      "note": "精简列主要设备；还涉及独立报警手段、便携双向VHF和备用电源等，不能当完整法定配备清单。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C025",
      "refs": [
        40
      ],
      "category": "设备海区",
      "question": "Which equipment is not necessarily required solely for sea area A2?",
      "answer": "An Inmarsat ship earth station and HF equipment are not necessarily required.",
      "zh": "仅A2航行不一定强制配卫星船站和HF。",
      "note": "必须用其他合规方案满足独立报警等要求；不是禁止配备。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C026",
      "refs": [
        41
      ],
      "category": "设备海区",
      "question": "What is sea area A4?",
      "answer": "It is the area outside sea areas A1, A2 and A3.",
      "zh": "A1、A2、A3以外。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C027",
      "refs": [
        42
      ],
      "category": "设备海区",
      "question": "In which sea areas can Inmarsat services be obtained?",
      "answer": "Within Inmarsat satellite coverage.",
      "zh": "在Inmarsat卫星覆盖内。",
      "note": "旧答案A1/A2/A3过于绝对；2024起A3按本船所配认可卫星服务覆盖定义，不能再简单等同Inmarsat覆盖。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C028",
      "refs": [
        43,
        44
      ],
      "category": "频率频道",
      "question": "Which channel is used for VHF DSC?",
      "answer": "Channel seven zero, on one five six decimal five two five megahertz.",
      "zh": "CH70／156.525 MHz。",
      "note": "CH70只用于DSC，不能语音通话。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C029",
      "refs": [
        45,
        74
      ],
      "category": "频率频道",
      "question": "What is the MF DSC distress frequency?",
      "answer": "Two one eight seven decimal five kilohertz.",
      "zh": "2187.5 kHz。",
      "note": "不要和MF遇险语音2182 kHz混淆。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C030",
      "refs": [
        46
      ],
      "category": "频率频道",
      "question": "What are the international DSC distress and safety frequencies?",
      "answer": "VHF channel seventy; and two one eight seven point five, four two zero seven point five, six three one two, eight four one four point five, one two five seven seven, and one six eight zero four point five kilohertz.",
      "zh": "CH70；2187.5、4207.5、6312、8414.5、12577、16804.5 kHz。",
      "note": "原题把所有海岸台说成全部值守不准确；具体值守能力查台站资料。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C031",
      "refs": [
        47
      ],
      "category": "常用通信",
      "question": "How can a ship contact a port before arrival?",
      "answer": "By VHF radiotelephone.",
      "zh": "甚高频无线电话。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C032",
      "refs": [
        48
      ],
      "category": "常用通信",
      "question": "Please spell your ship's name and call sign.",
      "answer": "YUQIANG: Yankee Uniform Quebec India Alfa November Golf. BOYZ: Bravo Oscar Yankee Zulu.",
      "zh": "按国际读音字母拼船名、呼号。",
      "note": "YUQIANG与BOYZ只是样例；正式回答以给定船名和呼号为准。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C033",
      "refs": [
        49
      ],
      "category": "常用通信",
      "question": "What should be confirmed with the pilot station?",
      "answer": "The pilot boarding time and position.",
      "zh": "引航员登轮时间和位置。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C034",
      "refs": [
        50
      ],
      "category": "常用通信",
      "question": "What should be reported to the pilot station?",
      "answer": "The ship's name, call sign, forward and aft draughts, and ETA.",
      "zh": "船名、呼号、首尾吃水、ETA。",
      "note": "若问国籍等particulars，再补flag state。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C035",
      "refs": [
        51
      ],
      "category": "常用通信",
      "question": "What should be reported when entering a VTS area?",
      "answer": "The ship's name, call sign, position, draught, course and speed.",
      "zh": "船名、呼号、位置、吃水、航向航速。",
      "note": "所需字段以当地VTS报告规则为准；可补最大吃水及ETA。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C036",
      "refs": [
        52
      ],
      "category": "常用通信",
      "question": "What should the master do before sailing?",
      "answer": "Check the passage plan and ship condition, and tell the chief engineer to stand by the engine.",
      "zh": "检查航行计划和船况，通知轮机长备车。",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C037",
      "refs": [
        53
      ],
      "category": "遇险紧急安全",
      "question": "Between whom are on-scene communications carried out?",
      "answer": "Between the vessel in distress and the assisting units, and among assisting units.",
      "zh": "遇险船与救援单位、救援单位之间。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C038",
      "refs": [
        54
      ],
      "category": "遇险紧急安全",
      "question": "Should a ship acknowledge an all-stations urgency call to all stations?",
      "answer": "No. An all-stations urgency call is not normally acknowledged.",
      "zh": "通常不确认面向所有台站的紧急呼叫。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C039",
      "refs": [
        55
      ],
      "category": "遇险紧急安全",
      "question": "Who is addressed when acknowledging a DSC distress alert?",
      "answer": "A radiotelephone acknowledgement is addressed to the vessel in distress.",
      "zh": "无线电话确认应呼叫遇险船。",
      "note": "照片的 All stations 不能作为所有确认情形的通用答案。DSC技术确认通常由海岸台负责；船舶处理须区分VHF/MF/HF及具体情形。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C040",
      "refs": [
        56
      ],
      "category": "误报警",
      "question": "What should a station do after sending an inadvertent distress alert?",
      "answer": "Stop the false transmission, cancel the alert, and inform the relevant RCC.",
      "zh": "停止误发，取消报警，通知相关RCC。",
      "note": "VHF/MF/HF与卫星取消程序不同，不能只说联系RCC就结束。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C041",
      "refs": [
        57
      ],
      "category": "缩写",
      "question": "What does SOLAS stand for?",
      "answer": "SOLAS stands for International Convention for the Safety of Life at Sea.",
      "zh": "国际海上人命安全公约",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C042",
      "refs": [
        58
      ],
      "category": "缩写",
      "question": "What does STCW stand for?",
      "answer": "STCW stands for International Convention on Standards of Training, Certification and Watchkeeping for Seafarers.",
      "zh": "海员培训、发证和值班标准国际公约",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C043",
      "refs": [
        59
      ],
      "category": "缩写",
      "question": "What does DSC stand for?",
      "answer": "DSC stands for Digital Selective Calling.",
      "zh": "数字选择性呼叫",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C044",
      "refs": [
        60
      ],
      "category": "缩写",
      "question": "What does NBDP stand for?",
      "answer": "NBDP stands for Narrow-Band Direct Printing.",
      "zh": "窄带直接印字",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C045",
      "refs": [
        61
      ],
      "category": "缩写",
      "question": "What does VHF stand for?",
      "answer": "VHF stands for Very High Frequency.",
      "zh": "甚高频",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C046",
      "refs": [
        62
      ],
      "category": "缩写",
      "question": "What does MSI stand for?",
      "answer": "MSI stands for Maritime Safety Information.",
      "zh": "海上安全信息",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C047",
      "refs": [
        63
      ],
      "category": "缩写",
      "question": "What does AAIC stand for?",
      "answer": "AAIC stands for Accounting Authority Identification Code.",
      "zh": "计费机构识别码",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C048",
      "refs": [
        64
      ],
      "category": "缩写",
      "question": "What does EGC stand for?",
      "answer": "EGC stands for Enhanced Group Call.",
      "zh": "增强群呼",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C049",
      "refs": [
        65
      ],
      "category": "缩写",
      "question": "What does GMDSS stand for?",
      "answer": "GMDSS stands for Global Maritime Distress and Safety System.",
      "zh": "全球海上遇险与安全系统",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C050",
      "refs": [
        66
      ],
      "category": "缩写",
      "question": "What does ETD stand for?",
      "answer": "ETD stands for Estimated Time of Departure.",
      "zh": "预计离港时间",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C051",
      "refs": [
        67
      ],
      "category": "缩写",
      "question": "What does ETA stand for?",
      "answer": "ETA stands for Estimated Time of Arrival.",
      "zh": "预计到达时间",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C052",
      "refs": [
        68,
        69
      ],
      "category": "缩写",
      "question": "What does MRCC stand for, and what is its function?",
      "answer": "MRCC stands for Maritime Rescue Coordination Centre. It coordinates search and rescue operations.",
      "zh": "海上救援协调中心；协调搜救。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C053",
      "refs": [
        76
      ],
      "category": "遇险紧急安全",
      "question": "What does a vessel declaring MAYDAY mean?",
      "answer": "The vessel is in grave and imminent danger and requires immediate assistance.",
      "zh": "严重且迫近的危险，需要立即援助。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C054",
      "refs": [
        78
      ],
      "category": "常用通信",
      "question": "What is a general cargo ship?",
      "answer": "It is a ship designed to carry general cargo.",
      "zh": "运输杂货的船。",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C055",
      "refs": [
        79
      ],
      "category": "缩写",
      "question": "What do NCC and OCC stand for?",
      "answer": "NCC: Network Coordination Centre. OCC: Operations Control Centre.",
      "zh": "网络协调中心；运行控制中心。",
      "note": "OCC按Inmarsat语境；原资料Operation单复数表述不一致。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C056",
      "refs": [
        80
      ],
      "category": "缩写",
      "question": "What does NCS stand for?",
      "answer": "Network Coordination Station.",
      "zh": "网络协调站。",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C057",
      "refs": [
        81
      ],
      "category": "缩写",
      "question": "What do CES and SES stand for?",
      "answer": "CES: Coast Earth Station. SES: Ship Earth Station.",
      "zh": "海岸地球站；船舶地球站。",
      "note": "",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C058",
      "refs": [
        82
      ],
      "category": "遇险紧急安全",
      "question": "What should a station do after sending a genuine distress alert?",
      "answer": "Listen for acknowledgement and send the follow-up distress message on the appropriate channel.",
      "zh": "等待确认，按程序在适当频道发送后续遇险信息。",
      "note": "原题advent含混；这里按真实遇险理解，与inadvertent误发区别。不能只等待而无后续通信。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C059",
      "refs": [
        84
      ],
      "category": "常用通信",
      "question": "What should you transmit during a radiotelephone test?",
      "answer": "Identify the station, state that it is a radio test, and ask for a signal report.",
      "zh": "表明身份、说明测试、请求信号报告。",
      "note": "按适当频道及规定进行测试，避免占用遇险频道。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C060",
      "refs": [
        85
      ],
      "category": "遇险紧急安全",
      "question": "What is distress alerting?",
      "answer": "It is rapidly reporting a distress incident to a unit that can provide or coordinate assistance.",
      "zh": "迅速向能提供或协调援助的单位报告遇险。",
      "note": "",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C061",
      "refs": [
        87
      ],
      "category": "遇险紧急安全",
      "question": "What information is sent in an Inmarsat-C distress alert?",
      "answer": "The terminal identity, position, position time, course, speed and nature of distress.",
      "zh": "终端识别、位置及时间、航向航速、遇险性质。",
      "note": "照片把详细后续电文与自动报警字段混在一起；援助要求、人数等可在后续遇险电文补充。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C062",
      "refs": [
        90
      ],
      "category": "遇险紧急安全",
      "question": "What information does NAVTEX receive?",
      "answer": "Maritime safety information, including navigational warnings, meteorological warnings and forecasts, and search and rescue information.",
      "zh": "航行警告、气象警告及预报、搜救等MSI。",
      "note": "国际NAVTEX通常518 kHz英语广播；不是所有NAVTEX都仅518。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C063",
      "refs": [
        91
      ],
      "category": "常用通信",
      "question": "What would you say for a radio test?",
      "answer": "Shanghai Radio, this is motor vessel Yuqiang, call sign BOYZ. Radio test. How do you read me? Over.",
      "zh": "呼叫岸台、报本船及呼号、说明测试、询问信号。",
      "note": "示范用语，船台名按题目替换；重复次数按实际呼叫程序。",
      "tier": "B",
      "source": "照片",
      "top50": false
    },
    {
      "id": "C064",
      "refs": [
        93
      ],
      "category": "遇险紧急安全",
      "question": "To whom is an Inmarsat distress message sent, and with what priority?",
      "answer": "To the appropriate RCC, with distress priority, priority three.",
      "zh": "相关RCC；遇险优先级3。",
      "note": "该数字是本题Inmarsat语境；不是普遍通信排序第3。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C065",
      "refs": [
        96
      ],
      "category": "遇险紧急安全",
      "question": "What should you do on receiving a distress alert?",
      "answer": "Silence the alarm, check the alert, inform the master, and keep watch on the appropriate distress frequency.",
      "zh": "消音、核查、报告船长、守听相应遇险频率。",
      "note": "还须依海区和频段按规定确认、联络岸台并提供援助；不是关闭设备。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C066",
      "refs": [
        97
      ],
      "category": "遇险紧急安全",
      "question": "What is transmitted in a DSC distress alert?",
      "answer": "The ship's MMSI, position and UTC time, nature of distress, and the subsequent communication mode.",
      "zh": "MMSI、位置及UTC时间、险情、后续通信方式。",
      "note": "与语音MAYDAY电文所列项目区分。",
      "tier": "A",
      "source": "照片",
      "top50": true
    },
    {
      "id": "C067",
      "refs": [],
      "category": "缩写",
      "question": "What does VTS stand for?",
      "answer": "VTS stands for Vessel Traffic Services.",
      "zh": "船舶交通服务。",
      "note": "",
      "tier": "A",
      "source": "补充图17/22",
      "top50": true
    },
    {
      "id": "C068",
      "refs": [],
      "category": "缩写",
      "question": "What does RT stand for?",
      "answer": "RT stands for radiotelephony.",
      "zh": "无线电话。",
      "note": "",
      "tier": "A",
      "source": "补充图17",
      "top50": true
    },
    {
      "id": "C069",
      "refs": [],
      "category": "缩写",
      "question": "What does IHO stand for?",
      "answer": "International Hydrographic Organization.",
      "zh": "国际海道测量组织。",
      "note": "",
      "tier": "B",
      "source": "补充图17–18/22",
      "top50": false
    },
    {
      "id": "C070",
      "refs": [],
      "category": "常用通信",
      "question": "What means is used for bridge-to-bridge communication?",
      "answer": "VHF radiotelephone.",
      "zh": "驾驶台间通信使用VHF。",
      "note": "",
      "tier": "A",
      "source": "补充图18/24",
      "top50": true
    },
    {
      "id": "C071",
      "refs": [],
      "category": "设备海区",
      "question": "What main equipment is carried in sea area A1?",
      "answer": "VHF DSC, an MSI receiver, an EPIRB, search and rescue locating devices, portable VHF radios and reserve power.",
      "zh": "A1主要配备：VHF DSC、MSI接收、EPIRB、搜救定位、便携VHF、备用电源。",
      "note": "",
      "tier": "B",
      "source": "补充图18",
      "top50": false
    },
    {
      "id": "C072",
      "refs": [],
      "category": "缩写",
      "question": "What does IOC stand for?",
      "answer": "Index of Cooperation.",
      "zh": "合作指数，传真语境。",
      "note": "",
      "tier": "B",
      "source": "补充图18",
      "top50": false
    },
    {
      "id": "C073",
      "refs": [
        75
      ],
      "category": "设备海区",
      "question": "Is MF DSC required solely for sea area A1?",
      "answer": "No, it is not necessarily required.",
      "zh": "只在A1航行不一定要求MF DSC。",
      "note": "",
      "tier": "B",
      "source": "补充图18–19",
      "top50": false
    },
    {
      "id": "C074",
      "refs": [],
      "category": "缩写",
      "question": "What does MSC stand for?",
      "answer": "Maritime Safety Committee.",
      "zh": "海上安全委员会。",
      "note": "",
      "tier": "B",
      "source": "补充图19",
      "top50": false
    },
    {
      "id": "C075",
      "refs": [],
      "category": "缩写",
      "question": "What does AGC stand for?",
      "answer": "Automatic Gain Control.",
      "zh": "自动增益控制。",
      "note": "",
      "tier": "B",
      "source": "补充图19",
      "top50": false
    },
    {
      "id": "C076",
      "refs": [],
      "category": "设备海区",
      "question": "What additional equipment is required for sea area A3?",
      "answer": "A recognized mobile satellite service ship earth station and MF DSC radiotelephony, with an independent distress alerting means.",
      "zh": "认可移动卫星船站、MF DSC及无线电话、独立遇险报警手段。",
      "note": "纠正图19“必须额外HF”的一概而论说法；按2024修订规定，完整配置及备份方案另核。",
      "tier": "B",
      "source": "补充图19",
      "top50": false
    },
    {
      "id": "C077",
      "refs": [],
      "category": "缩写",
      "question": "What does MCC stand for?",
      "answer": "Mission Control Centre.",
      "zh": "任务控制中心。",
      "note": "",
      "tier": "B",
      "source": "补充图19–20",
      "top50": false
    },
    {
      "id": "C078",
      "refs": [],
      "category": "缩写",
      "question": "What does NAVTEX stand for?",
      "answer": "Navigational Telex.",
      "zh": "航行警告电传。",
      "note": "",
      "tier": "B",
      "source": "补充图20/22",
      "top50": false
    },
    {
      "id": "C079",
      "refs": [],
      "category": "缩写",
      "question": "What does MMSI stand for?",
      "answer": "Maritime Mobile Service Identity.",
      "zh": "水上移动业务识别码。",
      "note": "",
      "tier": "A",
      "source": "补充图20",
      "top50": false
    },
    {
      "id": "C080",
      "refs": [],
      "category": "缩写",
      "question": "What does SAR stand for?",
      "answer": "Search and Rescue.",
      "zh": "搜寻与救助。",
      "note": "",
      "tier": "A",
      "source": "补充图20",
      "top50": false
    },
    {
      "id": "C081",
      "refs": [],
      "category": "缩写",
      "question": "What does LES stand for?",
      "answer": "Land Earth Station.",
      "zh": "陆地地球站。",
      "note": "",
      "tier": "B",
      "source": "补充图20",
      "top50": false
    },
    {
      "id": "C082",
      "refs": [],
      "category": "缩写",
      "question": "What does MES stand for?",
      "answer": "Mobile Earth Station.",
      "zh": "移动地球站。",
      "note": "",
      "tier": "B",
      "source": "补充图20",
      "top50": false
    },
    {
      "id": "C083",
      "refs": [],
      "category": "缩写",
      "question": "What does UTC stand for?",
      "answer": "Coordinated Universal Time.",
      "zh": "协调世界时。",
      "note": "纠正原图 Universal Time Coordinated 的词序。",
      "tier": "A",
      "source": "补充图21",
      "top50": false
    },
    {
      "id": "C084",
      "refs": [],
      "category": "缩写",
      "question": "What does LUT stand for?",
      "answer": "Local User Terminal.",
      "zh": "本地用户终端。",
      "note": "",
      "tier": "B",
      "source": "补充图21",
      "top50": false
    },
    {
      "id": "C085",
      "refs": [],
      "category": "缩写",
      "question": "What does SSB stand for?",
      "answer": "Single Sideband.",
      "zh": "单边带。",
      "note": "",
      "tier": "B",
      "source": "补充图21",
      "top50": false
    },
    {
      "id": "C086",
      "refs": [],
      "category": "缩写",
      "question": "What does IMO stand for?",
      "answer": "International Maritime Organization.",
      "zh": "国际海事组织。",
      "note": "",
      "tier": "B",
      "source": "补充图21",
      "top50": false
    },
    {
      "id": "C087",
      "refs": [],
      "category": "缩写",
      "question": "What does WWNWS stand for?",
      "answer": "World-Wide Navigational Warning Service.",
      "zh": "全球航行警告业务。",
      "note": "",
      "tier": "B",
      "source": "补充图21",
      "top50": false
    },
    {
      "id": "C088",
      "refs": [],
      "category": "缩写",
      "question": "What does OSC stand for?",
      "answer": "On-scene Coordinator.",
      "zh": "现场协调员。",
      "note": "现行搜救用语为Coordinator；照片Commander为旧称。",
      "tier": "B",
      "source": "补充图21–22",
      "top50": false
    },
    {
      "id": "C089",
      "refs": [],
      "category": "缩写",
      "question": "What does ITU stand for?",
      "answer": "International Telecommunication Union.",
      "zh": "国际电信联盟。",
      "note": "",
      "tier": "B",
      "source": "补充图22",
      "top50": false
    },
    {
      "id": "C090",
      "refs": [],
      "category": "常用通信",
      "question": "What information is provided to the pilot station before arrival?",
      "answer": "The ship's name, call sign, flag, draught and ETA.",
      "zh": "船名、呼号、船旗、吃水和ETA。",
      "note": "",
      "tier": "A",
      "source": "补充图22–23",
      "top50": false
    },
    {
      "id": "C091",
      "refs": [],
      "category": "缩写",
      "question": "What do HF and MF stand for?",
      "answer": "HF: High Frequency. MF: Medium Frequency.",
      "zh": "高频；中频。",
      "note": "",
      "tier": "B",
      "source": "补充图23",
      "top50": false
    },
    {
      "id": "C092",
      "refs": [],
      "category": "常用通信",
      "question": "What ship's particulars may VTS ask for?",
      "answer": "The ship's name, call sign, port of registry, length overall, draught and ETA.",
      "zh": "船名、呼号、船籍港、总长、吃水和ETA。",
      "note": "",
      "tier": "A",
      "source": "补充图23–24",
      "top50": false
    },
    {
      "id": "C093",
      "refs": [],
      "category": "遇险紧急安全",
      "question": "What does SEELONCE MAYDAY mean?",
      "answer": "Stop transmitting and keep radio silence.",
      "zh": "停止发射，保持无线电静默。",
      "note": "",
      "tier": "A",
      "source": "补充图24",
      "top50": false
    },
    {
      "id": "C094",
      "refs": [],
      "category": "设备海区",
      "question": "Can an EPIRB send telex messages?",
      "answer": "No. It transmits distress alerting and locating information.",
      "zh": "不能发电传；用于遇险报警和定位。",
      "note": "",
      "tier": "B",
      "source": "补充图24",
      "top50": false
    },
    {
      "id": "C095",
      "refs": [],
      "category": "遇险紧急安全",
      "question": "What priority is used to request medical advice?",
      "answer": "Urgency priority, using PAN PAN when appropriate.",
      "zh": "紧急优先级；适用时用PAN PAN。",
      "note": "",
      "tier": "A",
      "source": "补充图24–25",
      "top50": false
    },
    {
      "id": "C096",
      "refs": [],
      "category": "误报警",
      "question": "How do you cancel a false VHF DSC distress alert?",
      "answer": "Stop the false transmission. Switch on and select channel sixteen. Broadcast a cancellation to all stations, identify the ship and the alert, and inform the coast station or RCC.",
      "zh": "停止误发；恢复设备选CH16；向所有台广播取消，报身份和原报警时间；通知岸台或RCC。",
      "note": "不能只重启就结束；不把照片“等待10秒”当通用硬性要求。",
      "tier": "A",
      "source": "补充图25",
      "top50": true
    },
    {
      "id": "C097",
      "refs": [],
      "category": "遇险紧急安全",
      "question": "Which NAVTEX messages cannot normally be rejected?",
      "answer": "Navigational warnings, meteorological warnings, search and rescue information, piracy warnings, and warnings of tsunamis and other natural phenomena.",
      "zh": "NAVTEX A、B、D、L类：航行、气象、搜救、海盗、海啸及其他自然现象警告。",
      "note": "现行NAVTEX手册包括A、B、D、L，补齐照片遗漏的L类；有些旧设备可以关闭L，但不应关闭。",
      "tier": "A",
      "source": "补充图25–26",
      "top50": false
    },
    {
      "id": "C098",
      "refs": [],
      "category": "遇险紧急安全",
      "question": "What language is used for national NAVTEX?",
      "answer": "The language is decided by the administration concerned.",
      "zh": "由有关主管机关决定。",
      "note": "",
      "tier": "A",
      "source": "补充图25–26",
      "top50": false
    },
    {
      "id": "C099",
      "refs": [],
      "category": "常用通信",
      "question": "How can a ship contact her agent?",
      "answer": "By VHF radio, satellite telephone or email.",
      "zh": "VHF、卫星电话、邮件。",
      "note": "",
      "tier": "A",
      "source": "补充图26",
      "top50": false
    },
    {
      "id": "C100",
      "refs": [],
      "category": "设备海区",
      "question": "How often is the reserve battery capacity checked?",
      "answer": "At intervals not exceeding twelve months.",
      "zh": "容量检查间隔不超过12个月。",
      "note": "不是所有电池统一一年一换；EPIRB/SART按到期日及厂家要求处理。",
      "tier": "B",
      "source": "补充图26–27",
      "top50": false
    },
    {
      "id": "C101",
      "refs": [],
      "category": "常用通信",
      "question": "What are bridge-to-bridge communications?",
      "answer": "Safety communications between ships from their normal navigating positions.",
      "zh": "船舶正常驾驶位置间的安全通信。",
      "note": "",
      "tier": "A",
      "source": "补充图27",
      "top50": false
    },
    {
      "id": "C102",
      "refs": [],
      "category": "误报警",
      "question": "What should you do after a false EPIRB alert?",
      "answer": "Deactivate the EPIRB immediately and inform the appropriate RCC or coast station to cancel the alert.",
      "zh": "立即关闭EPIRB并通知相关RCC或岸台取消。",
      "note": "",
      "tier": "A",
      "source": "补充图27–28",
      "top50": true
    },
    {
      "id": "C103",
      "refs": [],
      "category": "设备海区",
      "question": "What is the purpose of an AIS-SART?",
      "answer": "To transmit locating signals to help rescuers find survivors.",
      "zh": "发送定位信号，帮助寻找遇险人员。",
      "note": "",
      "tier": "A",
      "source": "补充图28",
      "top50": false
    },
    {
      "id": "C104",
      "refs": [],
      "category": "误报警",
      "question": "How do you cancel a false MF DSC distress alert?",
      "answer": "Stop the false transmission, select two one eight two kilohertz, and broadcast a cancellation to all stations. Inform the relevant coast station or RCC.",
      "zh": "停止误发，在2182 kHz向所有台广播取消，并通知岸台或RCC。",
      "note": "报船名、呼号、MMSI及原报警日期UTC时间。",
      "tier": "A",
      "source": "核查补充：加拿大海岸警卫队",
      "top50": true
    },
    {
      "id": "C105",
      "refs": [],
      "category": "误报警",
      "question": "How do you cancel a false HF DSC distress alert?",
      "answer": "Broadcast a cancellation on the associated radiotelephone distress frequency in every band used for the false alert, and inform the coast station or RCC.",
      "zh": "在所有误发频段的对应语音遇险频率取消，并通知岸台或RCC。",
      "note": "",
      "tier": "A",
      "source": "核查补充：加拿大海岸警卫队",
      "top50": true
    },
    {
      "id": "C106",
      "refs": [],
      "category": "误报警",
      "question": "How do you cancel a false Inmarsat-C distress alert?",
      "answer": "Send a distress-priority cancellation to the appropriate RCC through the same coast earth station.",
      "zh": "经原地球站向相关RCC发送遇险优先级的取消电文。",
      "note": "",
      "tier": "A",
      "source": "核查补充：加拿大海岸警卫队",
      "top50": true
    },
    {
      "id": "C107",
      "refs": [],
      "category": "频率频道",
      "question": "What are the VHF and MF radiotelephone distress frequencies?",
      "answer": "VHF channel sixteen, and two one eight two kilohertz on MF.",
      "zh": "VHF语音CH16；MF语音2182 kHz。",
      "note": "与DSC的CH70和2187.5 kHz区别。",
      "tier": "A",
      "source": "核查补充：加拿大海岸警卫队",
      "top50": false
    },
    {
      "id": "C108",
      "refs": [],
      "category": "设备海区",
      "question": "How are sea areas A1, A2 and A3 defined?",
      "answer": "A1 has VHF coast station coverage with continuous DSC alerting. A2, excluding A1, has MF coast station coverage with continuous DSC alerting. A3, excluding A1 and A2, is covered by a recognized mobile satellite service supported by the ship earth station carried on board, with continuous alerting.",
      "zh": "A1：VHF连续DSC覆盖；A2：A1以外MF连续DSC覆盖；A3：A1/A2以外本船所配认可卫星服务连续报警覆盖。",
      "note": "海区不是按30/150海里机械划线。",
      "tier": "B",
      "source": "核查补充：IMO MSC.496(105)",
      "top50": false
    }
  ]
}