商业车驾照基本理论模拟题复习

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免费在线商业车驾照基本理论模拟考试


Cargo inspection

  1. Should be performed after every break you take while driving - 正确答案
  2. All of these answers are true
  3. is most often not the responsibility of the drvier
  4. Are needed only if hazardous materials are being hauled

你应当在每次停车时对拉的货物/柜进行检查,以防止车辆行驶中货物/柜出现任何意外情况

Which of the statements about braking is true

  1. the heavier vehicle is or faster it is moving, the more heat the brakes have to absorb - 正确答案
  2. brake responding is very quickly when the vehicle is moving very fast
  3. brake fade is not caused by heat
  4. All these answers are true

车辆越重或行驶速度越快,刹车系统要吸收的热量就越多

If you are inspecting hydraulic brakes. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. If the brakes are working properly the pedal should:

  1. jump up
  2. depress slightly
  3. not move - 正确答案
  4. sink to the floor

如果你要检查液压式刹车,你应该连踩刹车三下,然后踩住刹车五秒钟。 如果刹车工作正常,则刹车板不会动

Medicine used to treat common cold:

  1. should only used while driving at nighttime
  2. should only used while driving at daytime
  3. often makes you sleepy and should not be used while driving - 正确答案
  4. may still be used while driving if you use half of regular dose

用于治疗普通感冒的药物通常会使您昏昏欲睡,驾驶时不应使用

Which of the following systems should receive extra attention during winter weather inspection

  1. seat belt
  2. horn
  3. exhaust - 正确答案
  4. suspension

冬季天气检查期间应格外注意排气系统。冬季期间,你必须小心冰冷的道路状况对排气系统的损害。 如果道路上的东西造成冬季损坏,则需要快速对其进行修复,以免有害气体进入车内造成任何危险影响。

What does emergency braking means?

  1. responding to a hazard by slowing the vehicle - 正确答案
  2. using the vehicle emergency brake
  3. pushing down the brake pedal as hard as you can
  4. using the vehicle engine brake

紧急刹车意指减慢车辆速度来应对突发事件/危险

Extra care is needed to keep your vehicle centered in your lane because commercial vehicles:

  1. are often wider than other vehicles - 正确答案
  2. tend to sway from time to time
  3. all these answer are correct
  4. require a lot of room to change lanes

由于商用车辆通常比其他车辆更宽,因此需要格外小心,以确保车辆保持在车道中央

Which of statements is true about using engine brake:

  1. increasing use of engine brakes prevents extra friction between brake shoes apart from the drum
  2. All these answers are true
  3. You should use engine brakes as a main way to control your speed
  4. use of brakes on a downgrade add to the braking effect of the engine - 正确答案

在下坡时使用发动机制动器/ENGINE BRAKE会增加发动机的减速效果

When starting a bus on a level surface with good traction. there is often no need for:

  1. a tire check
  2. a pre-trip inspection
  3. slow acceleration
  4. parking brakes - 正确答案

在水平地面上启动巴士时,通常不需要使用泊车刹车器

Which of these pieces of emergency equipment should always be carried on your vehicle

  1. warning devices for parking vehicle - 正确答案
  2. tire repair kit
  3. flashlight
  4. first aid kit

你的车辆携带的应急设备中必须要有停车警告装置

What 3 distances build total stopping distances of your bus or truck:

  1. respon distance, observation and braking distance
  2. attention distance, reaction distance and following distance
  3. attention distance, reaction and slowing distance
  4. perception distance, reaction distance and braking distance - 正确答案

预感距离,反应距离和刹车距离构建巴士或卡车的总停止距离

You should lightly apply your brakes to flash the brake lights if:

  1. you are about to exit the road and need to slow down - 正确答案
  2. a driver tailgates your vehicle
  3. a police is approaching you from other direction
  4. show off you newly installed brake lights

如果您要下出口,则应轻踩刹车以使刹车灯闪烁,提醒后方的车辆你需要减速

You must keep the papers for hauling hazardous materials

  1. inside the toolbox
  2. under the driver seat
  3. in the glove compartment which must be working
  4. in the pouch of driver's door - 正确答案

您必须将与拉载危险品有关的文件放至一个小袋中,然后放在驾驶室的门上以方便D.O.T或警察随时查看

How much space in front of you is needed while driving on a highway

  1. 1 second for every 40 feet of vehicle length
  2. 1 second for every 30 feet of vehicle length
  3. 1 second for every 20 feet of vehicle length
  4. 1 second for every 10 feet of vehicle length - 正确答案

在高速公路上行驶时,每10英尺车长需要1秒与前车的距离

Overweight and oversized loads:

  1. All these answers are corrected
  2. must be accompanied by polices
  3. can only be driven at during daylights
  4. require special permits - 正确答案

超重和超大负载需要特殊许可

You are checking your brakes and suspension system for a pre-trip inspection. Which of these statements are true?

  1. Spring hangers that are cracked but still tight are not dangerous
  2. Brake shoes should not have oil, grease or brake fluid on them - 正确答案
  3. Just missing a leaf in a leaf spring is not dangerous
  4. All of these answers are true.

在行车前检查避震系统和刹车系统时,要确定刹车片上不得沾有油,油脂或刹车液

What is the most important reason to inspect your bus or truck

  1. to avoid being cited
  2. safety - 正确答案
  3. it is the law
  4. to avoid being fired by employer

安全是检查巴士或卡车的最重要原因,每次出车前务必花十几分钟做车辆安全检查

What should you do before driving in the mountains

  1. Carry the tire chains in your vehicle
  2. All these answers are correct
  3. Know escape ramp location on your way - 正确答案
  4. Unhook your steering axle brake

在车辆准备上山和下山之前,你必须提前知道途中的逃生坡道(Escape Ramp)的位置。万一车辆在下坡出现突发情况,例如因下坡车速太快或货物太重导致刹车刹不住 - 你可以使用逃生坡道安全的将车辆停下来。

If your vehicle catches fire while you are driving, You should:

  1. Park in an open area - 正确答案
  2. Park where building ore trees shelter your vehicle from the wind
  3. All of these answers are true
  4. Increase your speed to put out flames

当在驾驶过程中,如果你的车辆突然着火,你应尽快的将车辆停到一个开放的区域,然后进行其他必要的操作。

A vehicle is loaded with very little weight on the drive axle. What may happen:

  1. Poor traction - 正确答案
  2. All of these answers are true
  3. Better handling
  4. Damage to drive axle tires

在前轴负载不足的情况下,可能会使转向轴的重量过轻而无法安全转向。 驱动轴上的重量过轻会导致轮胎抓地性能/牵引力差。

商业车驾照基本理论模拟考试