通用知识测试 – 卡友助手

通用知识测试

题库共有484题，每次随机刷新50题，正确率80%以上即为通过。

Updated: Jan 02 2026

答对！解释：起步时不要后溜，以免碰到后方人员或车辆。手动挡车辆应在松开制动前先半联动结合离合器；必要时先拉驻车制动防止后溜，待发动机动力足以防止后溜后再松开驻车制动。 / Bingo! EXPLANATION: Don’t roll back when you start. You may hit someone behind you. If you have a manual transmission vehicle, partly engage the clutch before you take your right foot off the brake. Put on the parking brake whenever necessary to keep from rolling back. Release the parking brake only when you have applied enough engine power to keep from rolling back.

1 / 50

如何起步而不向后溜车？ / How can you start moving without rolling backward?

使用挂车手制动阀。 / Apply the trailer brake hand valve.

从制动踏板移开脚之前先半联动结合离合器。 / Engage the clutch before removing your foot from the brake.

以上都做。 / Do all of the above.

必要时拉起驻车制动。 / Set the parking brake whenever necessary.

答对！解释：悬挂肉类与干散装货物属于不稳定载荷、重心高，尤其在匝道等急弯处必须低速谨慎。 / Bingo! EXPLANATION: Hanging meat and dry bulk can be a very unstable load with a high center of gravity. Particular caution is needed on sharp curves such as off ramps and on ramps. Go slowly.

2 / 50

干散装槽罐与悬挂肉类： / Dry bulk tanks and hanging meat

重心低。 / have low centers of gravity.

属于不稳定载荷。 / are unstable loads.

无需特别小心。 / do not require special care.

正确！说明：入弯前先降至安全速度，并预先降到合适挡位。这样弯中可适度带油提升稳定性，也便于出弯后及时加速。 / Correct! EXPLANATION: Slow down to a safe speed, and downshift to the right gear before entering the curve. This lets you use some power through the curve to help the vehicle be more stable while turning. It also allows you to speed up as soon as you are out of the curve.

3 / 50

关于降挡，下列哪项说法正确？ / Which of these statements about downshifting is true?

为通过弯道而降挡，应在入弯之前完成 / When you downshift for a curve, you should do so before you enter the curve

进行双踩离合时，应在离合松开、变速杆置于空挡时让转速下降 / When double clutching, you should let the RPM's decrease while the clutch is released, and the shift lever is in neutral

为下坡而降挡，应在下坡开始之后再进行 / When you downshift for a hill, you should do so after you start down the hill

完全正确！解释：在道路或路肩上停车后应在十分钟内摆放警示装置（如反光三角牌），以提醒其他道路使用者。 / Exactly! EXPLANATION: If you must stop on a road or the shoulder of any road, you must put out your emergency warning devices within ten minutes.

4 / 50

如必须在道路或路肩上停车，你必须在多长时间内摆放紧急警示装置？ / If you must stop on a road or the shoulder of any road, you must put out your emergency warning devices within

十五分钟。 / fifteen minutes.

五分钟。 / five minutes.

十分钟。 / ten minutes.

正确！说明：在双回路气刹系统中，当发动机处于工作转速时，气压应在 45 秒内从 85 PSI 升至 100 PSI。 / Correct! EXPLANATION: When the engine is at operating rpms, the air pressure should build from 85 to 100 psi within 45 seconds in dual air systems.

5 / 50

在双回路系统中，当发动机处于工作转速时，_____ 压力应在 45 秒内从 80 PSI 升至 100 PSI： / When the engine is at operating RPM’s, the _____ pressure is built up from 80 to 100 PSI within 45 seconds in a dual system?

机油 / Oil

空气 / Air

温度 / Temp

答对！解释：超长、超宽或超重货物通常需要特殊许可、警示装置并在规定时间行驶；这类特殊货物需要特别谨慎驾驶。 / Bingo! EXPLANATION: Over-length, over-width, and/or overweight loads require special transit permits. Driving is usually limited to certain times. Special equipment may be necessary such as “wide load” signs, flashing lights, flags, etc. Such loads may require a police escort or pilot vehicles bearing warning signs and/or flashing lights. These special loads require special driving care.

6 / 50

超长、超宽或超重的货物可能需要： / Loads that are over-length, over-width, or overweight may require

以上两者皆是。 / both of the above.

限定在特定时间段行驶。 / driving limited to certain times.

警示闪光灯。 / flashing lights.

正确！解释：不要直视强光；把视线移到车道右缘或道路右侧的边线，必要时减速。 / Correct! EXPLANATION: Don’t look directly at bright lights when driving. Look at the right side of the road. Watch the sidelines when someone coming toward you has very bright lights on.

7 / 50

夜间会车时，如果对向车辆一直不开近光（保持远光），你应该怎么做？ / What should you do if a car coming toward you at night keeps its high beams on?

用远光灯向对方闪烁示警。 / Flash your high beams at the other driver.

把视线移向本车道右缘或道路右侧边缘。 / Look toward the right edge of your lane or the right edge of the road.

减速并直视前方。 / Slow down and look straight ahead in your lane.

正确！说明：在理想条件下，从眼睛看到危险到大脑识别其为危险这段时间里车辆行驶的距离，叫作“感知距离（perception distance）”。 / Correct! EXPLANATION: The distance your vehicle travels, in ideal conditions; from the time your eyes see a hazard until your brain recognizes it is perception distance.

8 / 50

从眼睛看到危险到大脑识别为危险这段时间内车辆行驶的距离称为_______距离。 / The distance your vehicle travels from the time your eyes see a hazard to the time your brain recognizes it is called _______ distance.

制动 / braking

感知 / perception

反应 / reaction

没错！说明：散落的货物会造成交通隐患并可能致人伤亡；紧急刹车或碰撞时，散落货物也可能伤及你本人；超载还会损坏车辆。 / Right! EXPLANATION: Loose cargo that falls off a vehicle can cause traffic problems and others could be hurt or killed. Loose cargo could hurt or kill you during a quick stop or crash. Your vehicle could be damaged by an overload.

9 / 50

货物装载或固定不当会引发许多问题。以下哪项说法正确？ / Cargo that is not loaded or secured properly can cause many problems. Which of these statements is true?

超载会损坏车辆 / Overloading can damage vehicle

其他道路使用者可能撞到或被散落货物所撞 / Other highway users can hit or be hit by loose cargo

紧急刹车或碰撞时，散落货物可能伤及司机或乘客 / Loose cargo can cause injury to the driver or passengers during a quick stop or crash

以上答案都正确 / All answers are correct are true

正确！解释：较新的卡车摩擦更小、外形更流线、发动机更强，上坡可能用更高档；但下长坡为控速与防过热，应使用更低的档位。 / Right! EXPLANATION: Newer trucks have low friction parts, streamlined shapes for fuel economy, more powerful engines meaning they can go up hills in higher gears. For that reason, drivers of modern trucks may have to use lower gears going down a hill than would be required to go up the hill.

10 / 50

你驾驶一辆带手动变速器的新卡车，面对长而陡的下坡，应当： / You are driving a new truck with a manual transmission. To take a long, steep downhill grade,

使用比上坡时更低的档位。 / use a lower gear than you would use to climb the hill.

挂空挡滑行。 / shift into neutral and coast.

使用与上坡相同的档位。 / use the same gear you would use to climb the hill.

正确！解释：装载危险品时，必须检查随车文件、容器标签与车辆危险品警示牌是否齐全、规范。 / Right! EXPLANATION: If the cargo contains hazardous materials, you must inspect for proper papers, labeling, and placarding.

11 / 50

以下哪些迹象表明货物属于危险品？ / Which of these tells you that cargo contains hazardous materials?

容器上有 4 英寸的菱形危险品标签。 / There is a four-inch, diamond-shaped hazardous materials label on the container.

车辆上张贴了危险品警示牌。 / A hazardous materials placard is on the vehicle.

以上两项都正确。 / Both of these answers are correct.

正确！说明：随着 BAC 升高，酒精会影响大脑更多区域；首先受影响的是掌管判断与自控的部分。 / Correct! EXPLANATION: Alcohol affects more and more of the brain as BAC builds up. The first part of the brain affected controls judgment and self-control.

12 / 50

当你的血液酒精浓度（BAC）升高时，会发生什么？ / As your blood alcohol concentration (BAC) rises, what happens?

你会更清楚地意识到酒精对你的影响。 / You see more clearly how alcohol is affecting you.

你会更快清醒。 / You can sober up in less time.

判断力与自控力会受到影响。 / Judgment and self-control are affected.

完全正确！解释：超长、超宽和/或超重货物需要**特殊通行许可**，并且通常还需配备“超宽载荷”等标志、**警示闪光灯**、旗帜等。 / Exactly! EXPLANATION: Over-length, over-width, and/or overweight loads require special transit permits. Driving is usually limited to certain times. Special equipment may be necessary such as “wide load” signs, flashing lights, flags, etc.

13 / 50

超长、超宽或超重的货物需要： / Over length, over width, and overweight loads require:

限定在特定时间行驶 / Driving limited to certain times

警示闪光灯 / Flashing lights

特殊通行许可 / Special transit permits

以上各项都需要 / All answers are correct

答对！说明：避险车道用于让失控车辆安全停下而不致伤及司乘人员；它能挽救生命，也能避免设备与货物严重受损。 / Bingo! EXPLANATION: Escape ramps are made to stop runaway vehicles safely without injuring drivers and passengers. Escape ramps save lives, equipment and cargo.

14 / 50

关于避险车道（逃逸坡），下列哪项说法正确？ / Which of these statements about escape ramps is true?

用于让在下坡时刹车失灵的车辆安全停下 / They are used to stop vehicles that lose their brakes on downhill grades

保护设备与货物免遭严重损坏 / They protect equipment and cargo from severe damage

以上说法都正确 / All answers are correct and true

旨在避免驾驶员与乘客受伤 / They are designed to prevent injury to drivers and passengers

答对！解释：每 10 英尺货物至少应有一条捆扎；务必确保捆扎数量满足要求并防止货物移动。 / Bingo! EXPLANATION: Cargo should have at least one tie-down for each ten feet of cargo. Make sure you have enough tiedowns to meet this need.

15 / 50

为防止货物移动，每隔多少英尺的货物至少需要一条捆扎？ / To prevent shifting, there should be at least one tie down for every _____ feet of cargo.

10 英尺 / 10

15 英尺 / 15

18 英尺 / 18

正确！解释：确保轮胎胎纹深度足够，并且在雪地上有足够附着力以便转向和“推着”车辆通过；在冬季这尤为重要。 / Right! EXPLANATION: Make sure you have enough tread on your tires. The drive tires must provide traction to push the rig over wet pavement and through snow. The steering tires must have traction to steer the vehicle. Enough tread is especially important in winter conditions.

16 / 50

在寒冷天气行车时，你的轮胎必须： / When you’re driving in cold weather, your tires must

胎纹深度至少为 4/32 英寸。 / have at least 4/32-inch tread depth.

提供足够的附着力，以便在雪地中转向并“推着”车辆前行。 / provide enough traction to steer and push the vehicle through snow.

胎纹深度至少为 6/32 英寸。 / have at least 6/32-inch tread depth.

正确！解释：路滑时停车距离更长，车辆更容易侧滑。应**尽量温和转向**并提前减速，留出更大的安全空间。 / Correct! EXPLANATION: It will take longer to stop, and it will be harder to turn without skidding, when the road is slippery. So, making gentle turns is key when the roads are slippery.

17 / 50

当路面湿滑时，你应该： / When roads are slippery, you should:

尽可能温和地转向 / Make turns as gently as possible

缩短你的前方观察距离 / Decrease the distance that you look ahead of your vehicle

与其他车并排行驶 / Drive alongside other drivers

18 / 50

你如何计算你有多少秒的跟车距离？ / How do you measure your following distance in seconds?

等到前方车辆通过一个清晰地标，然后开始计秒，直到你到达同一地点 Wait for the vehicle ahead to pass a clear landmark, then count seconds until you reach it

看车速表：每10英里/小时等于1秒跟车距离 Use the speedometer: every 10 mph equals 1 second of following distance

只要能看到前车后轮，就说明秒数距离足够 If you can see the rear tires of the vehicle ahead, your seconds are sufficient

没错！说明：如果路肩畅通，向右避让通常更好。路肩上一般不会有车行驶，但左侧可能有人正在超车——如果你有经常看后视镜就会知道这一点。若两侧都被挡住，向右移动通常仍是更好的选择；至少不会把别人逼入对向车道而引发迎头相撞。 / Right! EXPLANATION: If the shoulder is clear, going right may be best. No one is likely to be driving on the shoulder, but someone may be passing you on the left. You will know if you have been using your mirrors. If you are blocked on both sides, a move to the right may be best. At least you won’t force anyone into an opposing traffic lane and a possible head-on collision.

19 / 50

你在无中央隔离的四车道道路上行驶在最右侧车道，翻过一座坡顶发现前方本车道有一辆车停着。你没有足够距离停车，且坡顶挡住了你对后方的视线。此时最好的做法最可能是： / You are driving in the right lane of a four-lane undivided road, you come over a hill and find a car stopped ahead in your lane. You do not have room to stop, and the hill blocks your view to the rear. Which of these is most likely the best action to take?

转向对向车道 / Steer into the oncoming lanes

向左侧车道转向 / Steer into the left lane

向右侧转向 / Steer to the right

完全正确！解释：捆扎带需使用类型与强度合适的器材；所用捆扎的合力强度至少应达到货物（或同组货物）重量的 1.5 倍。 / Exactly! EXPLANATION: Tie-downs must be of the proper type and proper strength. Federal regulations require the aggregate working load limit of any securement system used to secure an article or group of articles against movement must be at least one and one-half times the weight of the article or group of articles.

20 / 50

捆扎带必须类型与强度合适。用于固定货物的捆扎带**合力强度**至少应达到： / Tie downs must be of the proper type and strength. The combined strength of cargo tie downs must be strong enough to lift.

货物重量的 2 倍 / Twice the weight of the cargo tied down

货物重量的 3 倍 / Three times the weight of the cargo tied down

所捆扎货物自身的重量 / The weight of the cargo tied down

货物重量的 1.5 倍 / One and one-half times the weight of the cargo tied down

答对！解释：若发现被人紧跟尾随，应增加与你前车的间距、适时闪刹提醒，并在安全时示意其超车；切勿为甩开对方而加速。 / Bingo! EXPLANATION: If you find yourself being tailgated, here are some things you can do to reduce the chances of a crash: avoid quick changes, increase your following distance opening up room in front of you will make it easier for the tailgater to get around you, don’t speed up.

21 / 50

当你被后车紧跟尾随时，你应该： / If you are being tailgated, you should:

增大你与前车之间的距离 / Increase the space in front of you

通过轻点刹车让刹车灯闪烁以示警 / Flash your brake lights

加速行驶 / Speed up

在安全时向后车发信号让其通过 / Signal the tailgater when it is safe to pass

完全正确！说明：摆放三角警示牌时，应将其置于你与对向来车之间，便于其他驾驶者看见你，从而提升自身安全。 / Exactly! EXPLANATION: When putting out the triangles, hold them between yourself and the oncoming traffic for your own safety, so other drivers can see you.

22 / 50

为确保安全，摆放反光三角警示牌时你应该： / For your safety, when setting out reflective triangles you should:

把三角牌握在你与迎面来车之间 / Hold the triangles between your body and oncoming traffic

把三角牌拿在身体侧面 / Carry the triangles at your side

走到摆放位置时把三角牌藏起来 / Keep them out of sight while you walk to the spot where you set them out

答对！说明：若路面结冰，应把速度降至极慢，并在确保安全的前提下尽快停驶。 / Bingo! EXPLANATION: If the surface is icy, reduce speed to a crawl and stop driving as soon as you can safely do so.

23 / 50

你所行驶的道路因镜面冰极其湿滑，此时下列哪种做法是较好的选择？ / The road you are driving on becomes very slippery due to glare ice, which of these is a good thing to do in such a situation?

靠降挡来停车 / Downshift to stop

立即停驶，并在安全的地点停车 / Stop driving and park where it is safe to do so

频繁踩刹车以保持衬片干燥 / Apply the brakes often to keep the linings dry

正确！说明：前轮每个主要沟槽的胎纹必须至少 4/32 英寸，其他轮胎至少 2/32 英寸。 / Correct! EXPLANATION: You must have at least 4/32-inch tread depth in every major groove on front tires and at least 2/32-inch on other tires

24 / 50

除前轮以外的轮胎，胎纹最小深度是多少？ / What is the minimum tread depth for tires other than front tires?

2/32 英寸 / 2/32 inch

4/32 英寸 / 4/32 inch

3/32 英寸 / 3/32 inch

25 / 50

在炎热的天气里，什么能够帮助保持发动机冷却？ / In hot weather, what can help keep the engine cool?

确保发动机有足够的机油 Make sure the engine has enough oil

高温时关闭风扇和空调更容易降温，所以应一直关闭 Turn off the fan and A/C at all times because that always cools the engine fastest

把散热器盖拧松一点，让热气随时排出 Loosen the radiator cap a little so heat can vent out

正确！解释：货物每 10 英尺至少需要 1 条捆扎；务必确保数量足够。因此 20 英尺的货物至少需要 2 条。 / Correct! EXPLANATION: Cargo should have at least one tie-down for each ten feet of cargo. Make sure you have enough tiedowns to meet this need. For a 20-foot load you would need at least 2 tie downs.

26 / 50

一件 20 英尺长的货物至少需要多少条捆扎？ / How many tie-downs are required for a 20-foot load?

2 条 / 2

3 条 / 3

4 条 / 4

1 条 / 1

正确！解释：在铁路道口若没有足够空间一次性通过而被迫中途停车，或因底盘净空不足而被卡在轨道上，均可导致至少 60 天吊销商业驾照。 / Right! EXPLANATION: You will lose your CDL for at least 60 days for your first violation of the following six offenses: failing to stop if the tracks are not clear, failing to slow down and check that the tracks are clear of an approaching train, failing to stop before driving onto the crossing, failing to have sufficient space to drive completely through the crossing without stopping, failing to obey a traffic control device or the directions of an enforcement official at the crossing, failing to negotiate a crossing because of insufficient undercarriage clearance.

27 / 50

在铁路道口，以下哪类违规会导致你至少 60 天吊销商业驾照（）？ / Which of the following violations at railroad crossings can lead to loss of your CDL for at least 60 days?

以上两项 / Both of the above

没有足够空间一次性通过而被迫中途停车 / Not having sufficient space to drive all the way through without stopping

因底盘净空不足而被卡在铁轨上 / Getting stuck on the tracks because of insufficient clearance

正确！解释：驾驶商用车等于默认同意接受酒精检测（呼气或血液）。 / Right! EXPLANATION: If you operate a CMV, you shall be deemed to have given your consent to alcohol testing.

28 / 50

“默示同意”意味着当你在公共道路上驾驶商用机动车时，你： / Implied consent means that when you operate a CMV on public roads, you

同意让执法人员对你的车辆进行酒精检查。 / consent to have your vehicle inspected for alcohol.

认为自己现在可以在开车前饮酒。 / understand that you may now drink alcohol before driving.

同意接受酒精含量检测。 / consent to be tested for alcohol in your blood.

正确！说明：机油压力应在发动机启动后的几秒内恢复到正常范围。 / Correct! EXPLANATION: Oil pressure. Should come up to normal within seconds after engine is started.

29 / 50

启动发动机后，机油压力表应在多长时间内恢复到正常范围？ / The oil pressure gauge should come up to normal within how long after starting the engine?

无所谓。 / It does not matter.

几秒钟内 / Seconds

几分钟后 / Minutes

正确！解释：大型车辆常配凸面镜，其视野更广，但物体看起来更小更远，因此实际距离比镜中看起来更近。 / Correct! EXPLANATION: Many large vehicles have curved mirrors that show a wider area than flat mirrors. This is often helpful, but everything appears smaller in a convex mirror than it would if you were looking at it directly. Things also seem farther away than they really are.

30 / 50

凸面（弧形）后视镜： / Convex curved mirrors

会让物体看起来比实际更大。 / make objects appear larger than they really are.

会让物体看起来比实际更近。 / make objects appear closer than they really are.

显示的视野范围比平面镜更广。 / show a wider area than flat mirrors.

答对！解释：胎压不足、燃油连接松动以及电气短路都可能引发火灾。 / Bingo! EXPLANATION: Under-inflated tires, loose fuel connections, and electrical short-circuits can all lead to fires.

31 / 50

以下哪些可能引发火灾？ / Which of these can cause a fire?

电气短路 / Electrical short-circuits

以上皆是 / All answers are correct

燃油连接松动 / Loose fuel connections

胎压不足的轮胎 / Under-inflated tires

完全正确！解释：有时通过反复踩放刹车踏板，能建立起足够的液压把车停住。 / Exactly! EXPLANATION: Sometimes pumping the brake pedal will generate enough hydraulic pressure to stop the vehicle.

32 / 50

你的车辆是液压制动系统。在平直且平坦的道路上行驶时，踩下刹车却发现踏板直接到底。以下哪项说法是正确的？ / Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true?

如果是自动变速器就不应降挡 / You should not downshift if you have an automatic transmission

驻车制动也不起作用，因为它与行车制动属于同一液压系统 / The parking brake will not work either because it is part of the same hydraulic system

反复踩放刹车踏板可以把液压顶起来，从而把车停住 / Pumping the brake pedal may bring the pressure up so you can stop the vehicle

答对！解释：驱动轴载荷过小会导致牵引力不足，驱动轮更易打滑空转。 / Bingo! EXPLANATION: Too little weight on the driving axles can cause poor traction. The drive wheels may spin easily.

33 / 50

车辆在驱动轴上的载重很小，可能导致什么结果？ / A vehicle is loaded with very little weight on the drive axle. What may result:

驱动轴车胎受损 / Damage to drive axle tires

需要断开转向轴的制动器 / A need to disconnect the steering axle brakes

牵引力不足/打滑 / Poor traction

操控更好 / Better handling

正确！说明：转向过猛、前轴负重不足以及过度加速，都会导致车辆打滑。 / Correct! EXPLANATION: Turning too sharply, not enough weight on the front axle, and over acceleration are all example of how to cause vehicle skids.

34 / 50

以下哪些情况会导致车辆打滑？ / Which of these can cause the vehicle to skid?

前轴负重不足 / Not enough weight on the front axle

过度加速 / Over acceleration

转向过猛 / Turning too sharply

以上皆是 / All answers are correct

完全正确！说明：湿路会让制动距离增加到两倍左右；为能在与干路相同的距离内停下，雨天应把车速降低约三分之一。 / Exactly! EXPLANATION: Wet roads can double stopping distance. You must drive slower to be able to stop in the same distance as on a dry road. Reduce speed by about one-third on a wet road.

35 / 50

下雨时，你应将车速降低： / In rain, you should reduce your speed by?

三分之二 / 2/3

三分之一 / 1/3

二分之一 / 1/2

正确！说明：制动衬片不得松动或被油脂浸湿，也不得薄到危险、破损或缺失。 / Correct! EXPLANATION: Brake linings must not be loose or soaked with oil or grease, and must not be dangerously thin, broken, or missing.

36 / 50

你在进行出车前检查刹车与悬挂系统。你要重点查看哪些问题？ / You are checking your brakes and suspension system for a pre-trip inspection. What are you looking for?

制动片表面不应有机油、油脂或制动液。 / Brake pads should not have oil, grease, or brake fluid on them.

制动蹄片不得磨损到危险薄度、不得缺失或破损。 / Brake shoes must not be worn dangerously thin, missing, or broken.

以上两项都正确。 / Both of the above are correct.

完全正确！说明：GVWR（总车辆重量额定值）是制造商为单一车辆规定的满载重量上限。 / Exactly! EXPLANATION: The Gross Vehicle Weight Rating (GVWR) is the value specified by the manufacturer as the loaded weight of a single vehicle.

37 / 50

总车辆重量额定值（GVWR）的含义是： / Gross vehicle weight rating or GVWR means the following:

以上皆不正确 / No answers are correct

以上两项皆是 / Both above

单一车辆的总重量 / Total weight of a single vehicle

单一车辆加其载荷的总重量 / Total weight of a single vehicle plus its load

答对！解释：短租或日租卡车司机往往不习惯大车的盲区与有限视野，存在安全隐患；不要完全信任对方的转向灯。 / Bingo! EXPLANATION: Be alert for drivers whose vision is blocked. Vans loaded station wagons, and cars with the rear window blocked are examples. Rental trucks should be watched carefully. Their drivers are often not used to the limited vision they have to the sides and rear of the truck.

38 / 50

关于其他驾驶者，以下哪项说法正确？ / Which of these statements is true about other drivers?

短租或日租卡车司机往往不适应有限视野，具有安全隐患。 / Short-term or daily rental truck drivers are often not used to the limited vision and pose a hazard.

邮政或送货卡车司机不存在安全隐患。 / Mail or delivery truck drivers do not pose a hazard.

只要对方打了转向灯，就一定会按指示方向转弯。 / Drivers using turn signals can be trusted to turn in the direction they indicate.

39 / 50

在车辆检查期间，检查哪个项目对预防火灾没有帮助？ / During a vehicle inspection, checking which item does NOT help prevent fires?

电线是否磨损、绝缘是否破损 Worn wiring or damaged insulation

燃油管路是否泄漏 Fuel line leaks

电池液位 Battery fluid level

完全正确！说明：应持续打灯。安全转弯需要双手握方向盘；直到转弯完成再取消转向灯。 / Exactly! EXPLANATION: Signal continuously. You need both hands on the wheel to turn safely. Don’t cancel the signal until you have completed the turn.

40 / 50

为什么转弯时应当持续打转向灯？ / Why should you signal continuously while turning?

为了安全转弯，你需要双手握住方向盘。 / You need both hands on the wheel to turn safely.

以上两项都正确。 / Both of the above are correct.

在开始转弯前关闭转向灯通常是违法的。 / It is usually illegal to turn off your signal before starting a turn.

41 / 50

你如何识别高风险的驾驶员？ / How can you identify a high-risk driver?

车辆在车道间飘移并快速改变速度 Drifting between lanes and changing speed quickly

始终保持车道居中且车速稳定 Staying centered in the lane with a steady speed

提前打灯、平稳并线并保持安全距离 Signaling early, changing lanes smoothly, and keeping a safe following distance

答对！说明：在确保安全时采用转向绕行，是最安全的做法。 / Bingo! EXPLANATION: Steering around the object when it is safe to do is the safest action.

42 / 50

行驶中，你看到前方本车道有一个小的方形纸箱。你应该： / While driving, you see a small square cardboard box ahead in your lane. You should:

重踩刹车以避免碾压 / Brake hard to avoid hitting it

在确保安全的情况下转向绕过 / Steer around it when it is safe to do so

停车并指挥其他车辆绕行。 / Stop and direct traffic around it.

43 / 50

运输危险物品时，你必须把运货单（单据）放在哪里？ / When transporting hazardous materials, where must you keep the shipping papers?

放在工具箱里并上锁，防止丢失 Locked inside a toolbox to prevent loss

放在后备箱/货箱最里面，避免弄脏 In the trunk/cargo area at the very back to keep it clean

在驾驶员车门上的袋子里或座位上（触手可及处） In the driver’s door pouch or on the seat (within reach)

44 / 50

干散货箱需要特别注意的一个原因是： / One reason dry bulk tanks require special care is that:

干散货箱不会侧翻，因此可以更快过弯 Dry bulk tanks cannot roll over, so you can take turns faster

负荷可能会移动 The load may shift

干散货箱的刹车永远更强，所以不需要注意 Dry bulk tanks always have stronger brakes, so extra care isn’t needed

正确！解释：集装箱货物通常由铁路或轮船运输一段后再由卡车接驳；司机仍需检查并确保其已妥善固定。 / Right! EXPLANATION: Containerized loads generally are used when freight is carried part way by rail or ship. Delivery by truck occurs at the beginning and/or end of the journey.

45 / 50

集装箱运输： / Containerized loads

通常用于部分路段由铁路或轮船承运的货物。 / are typically used for freight carried partway by rail or ship.

无需由司机检查或加固。 / do not need to be inspected or secured by the driver.

应自带捆扎固定装置。 / should come with their own tie-down devices.

没错！说明：出发前预防困倦：保证充足睡眠（8–9 小时）、规划路线、将行程安排在你平时清醒的时段、尽量与同伴同行、避免服用致嗜睡药物。 / Right! EXPLANATION: Preventing drowsiness before a trip: Get adequate sleep (8 to 9 hours), prepare route, , schedule trips for the hours you are normally awake, drive with a passenger, avoid medications that cause drowsiness.

46 / 50

在旅途中保持警觉，你应该 / To maintain alertness on your trips, you should

出发前保证 8–9 小时的睡眠。 / get 8-9 hours of sleep beforehand.

尽量把行程安排在白天时段。 / schedule your trips for the daytime hours.

避免使用会引起困倦的药物。 / avoid medications that cause drowsiness.

以上都要。 / do all of the above.

完全正确！说明：路面湿滑时，制动距离会显著增加，应与前车保持更大的安全间距。 / Exactly! EXPLANATION: Remember that when the road is slippery, you need much more space to stop, and should keep more space in front of your vehicle.

47 / 50

关于车距/空间管理，下列哪项说法正确？ / Which of these statements about managing space is true?

当路面湿滑时，你应该与前车保持更大的空间 / When the road is slippery you should keep more space in front of your vehicle

小型车辆比大型车辆需要更多的制动距离 / Smaller vehicles require more space to stop than larger ones

许多事故是因为驾驶员在车前留了过多空间而导致的 / Many accidents are caused by drivers keeping too much space in front of their vehicles

答对！解释：倒车**始终存在危险**；如需倒车，尽量向**驾驶员一侧**倒车并尽可能使用引导员。 / Bingo! EXPLANATION: Because you cannot see everything behind your vehicle, backing is always dangerous. Avoid backing whenever you can. When you have to back, here are a few simple safety rules: start in the proper position, look at your path, use mirrors on both sides, back slowly, back and turn toward the driver’s side if possible, use a helper whenever possible.

48 / 50

关于倒车，以下哪项说法正确？ / Which of the following statements about backing is true?

倒车时尽量朝驾驶员一侧倒车并转向。 / You should back and turn toward the driver's side whenever possible.

以上两项都正确。 / Both of the above are true.

倒车始终是危险的。 / Backing is always dangerous.

答对！说明：ABS 是一种电子控制系统，在你紧急制动时防止车轮抱死。 / Bingo! EXPLANATION: ABS is a computerized system that keeps your wheels from locking up during hard brake applications.

49 / 50

防抱死制动系统（ABS）将会 / An antilock braking system (ABS) will

让你开得更快。 / let you drive faster.

提高车辆的制动能力。 / increase your vehicle's stopping power.

在你重刹时防止车轮抱死。 / keep your wheels from locking when you brake hard.

缩短你的刹车距离。 / shorten your stopping distance.

正确！解释：作为车辆检查的一部分，确保不过载且货物平衡并牢固固定；行驶 3 小时或 150 英里后、以及每次休息后，都要再次检查。 / Correct! EXPLANATION: As part of your Vehicle inspection, make sure the truck is not overloaded and the cargo is balanced and secured properly. You need to inspect again: after you have driven for 3 hours or 150 miles, and after every break you take during driving.

50 / 50

你必须在何时检查所载货物？ / You must inspect your cargo:

行驶每 3 小时或 150 英里后 / Every 3 hours or 150 miles

每次休息之后 / After every break

以上皆是 / All answers are correct

出发前 / Before starting

您的分数是

作者 WordPress Quiz plugin