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US CDL 商用驾照笔试

通用 + 气刹 + 联合车辆 + 危险品等核心域

10 科目卡车司机、长途货运、危险品运输从业者Intermediate

本 Pack 为 AI 基于联邦机动车安全管理局（FMCSA）公开法规框架原创生成。各州 CDL 笔试存在差异，实际考试请以你所在州 DMV 提供的最新 CDL 手册为准。FlashGenie 与 FMCSA、各州 DMV 无关联。

考试结构 · 点击右侧按钮生成该科目卡组

#01

General Knowledge (Core)

所有 CDL 类别共同的基础知识

CDL classes A, B, C distinctionsendorsements and restrictions overviewmedical certification requirementsBAC limits for commercial drivers (0.04%)implied consent for commercial drivers+2

#02

Vehicle Inspection

出车前 / 行驶中 / 收车后三段检查

pre-trip inspection sequenceitems to check on tires, wheels, rimsbrake system inspection pointssteering and suspension checkslights and reflectors+2

#03

Basic Vehicle Control

起步 / 换挡 / 转弯 / 倒车 / 停车

starting and shifting (manual transmission)double-clutching basicsturning wide vs off-trackingstraight-line backingalley dock and offset backing+2

#04

Safe Driving Practices

视野 / 跟车 / 速度 / 险情管理

mirror use and blind spots ('no-zones')communicating with horn and lightsmanaging speed for heavy weightmanaging space (4-12-4 around your vehicle)seeing hazards and predicting actions+2

#05

Air Brakes Endorsement

气刹系统 · 应急 · 测试程序

air brake system componentssupply pressure and warning devicesservice brake vs parking brake vs emergencyspring brakes and how they applyair brake leakage rate tests+2

#06

Combination Vehicles

牵引车 + 挂车 · 5th wheel · 防摆动

fifth-wheel coupling proceduretrailer hand valve / trolley brake purposerollover risk and load placementmanaging trailer skid (jackknife)off-tracking on turns+2

#07

Cargo Loading & Securement

装载 / 配重 / 固定 / 重量限制

GVWR, GCWR, and axle weight limitsload distribution and center of gravitycargo securement basics (tiedowns, working load limit)blocking and bracingcovering loads+1

#08

Hazardous Materials Awareness

危险品分类 · 标识 · 文件 · 应急

the 9 hazard classes overviewshipping papers and emergency response infoplacarding rules and threshold quantitiesloading and segregation ruleswhat to do at a hazmat leak or spill+2

#09

Hours of Service & Logs

驾驶时长 · 休息 · 电子日志（ELD）

11-hour driving limit14-hour on-duty window30-minute rest break rule60/70-hour 7/8-day limits34-hour restart provisions+2

#10

Crashes & Emergencies

事故 · 火灾 · 报告 · 严重违章

what to do at the crash scenevehicle fire types and extinguisher usewhat to do if brakes fail on a downgradeescape rampsskid recovery (drive wheel vs trailer)+2