美国卡车驾照基本理论模拟题库-美国驾照考试

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

Poor traction – 正确答案
All of these answers are true
Damage to drive axle tires
Better handling

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。

Should brake adjustments be checked often?

It depends on how new brakes are
All these answers are true
No because the other brakes will make up for the air brakes when they are out of adjustment
Yes, because the brakes can go out of adjustment when they are used a lot. – 正确答案

是的，因为经常使用它们会失去调节。

Merging the road is safest if you:

wait for a large enough gap in the traffic to enter the road – 正确答案
bend over into the nearest lane so the other vehicles will give you the room
honk your horn and enter the road
gain speed on the shoulder and then merge

等待交通中足够大的间隙进入道路是合并到道路的最安全方法

The bridge formula

permits less maximum axle weight for the axles that are close together – 正确答案
All these answers are true
permits the same axle weight for any axle
permits less maximum axle weight for the axles that are far apart

允许在一起的轴承受更少的最大轴重

Which of these lights cannot be checked at the same time

turn signals, brake lights and four way flashes – 正确答案
headlights, brake lights and clearance lights
None of these
turn signals, taillights, and clearance lights

转向信号灯，刹车灯和紧急四向闪烁灯无法同时检查

If you are not sure what to use to put out the hazardous materials fire you should:

use water
use engine oil
use dirt
wait for fire fighters – 正确答案

如果你不确定用什么来扑灭因危险物质引起的大火，则应等待消防员的到来，切勿盲目操作以免造成不必要的错误。

Which of the following is not a characteristic of the front tire failure

Cold steering
Steering wheel twisting
All these answer are wrong
Vehicle fishtails – 正确答案

车辆摆尾行驶不是前轮胎故障的特征

Which of these is true about notifying the authorities after an accident occurs:

you should notify authorities about an accident before doing anything else
if you have a cellular phone or CB radio, You should notify the authorities before exiting the vehicle – 正确答案
an exact location is not necessary, just identify the road and the vehicles involved
you should check the cargo first before doing anything else

发生事故后，如果您拥有手机或CB对讲机，则应在下车之前报警以及通知相关部门

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

it is the law
to avoid being cited
to avoid being fired by employer
safety – 正确答案

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

Cargo inspection

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

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

Why tourists may be hazard

All of these answers are true
They may move slowly, unexpectedly change lanes or stop – 正确答案
Police don’t stop them
They drive rented cars

游客驾驶汽车时有可能会开的很慢，突然改变车道或突然停下来

While driving ice builds up on your wipers and they no longer clean the windshield. You should:

Pull over in a safe place and remove the ice. – 正确答案
Keep driving and spray the windshield with washer fluid
Keep driving and hoping there is rain coming
Keep driving and turn your defroster on

冬季开车时，如果雨刷器上结了冰，那它们将无法清洁挡风玻璃。你应该尽快找个安全的地方停下来，然后除去上面的冰。

When it is necessary to learn how fire extinguisher runs:

only when you are transporting hazardous materials
only when fire happens
before the fire happens – 正确答案
after the fire happened

在发生火灾之前，非常有必要了解灭火器的操作方式

Which of the statements about braking is true

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

车辆越重或行驶速度越快，刹车系统要吸收的热量就越多

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

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

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

Overweight and oversized loads:

require special permits – 正确答案
All these answers are corrected
must be accompanied by polices
can only be driven at during daylights

超重和超大负载需要特殊许可

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:

jump up
not move – 正确答案
sink to the floor
depress slightly

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

Why it is important to shift gears correctly:

to keep the engine warm
to keep you from being bored
to keep the engine oil flowing
to keep control of the vehicle – 正确答案

正确换档以保持对车辆的控制非常重要

When the hydraulic brakes fail while you are driving, the system will not build up pressure and the brake pedal will feel spongy or go to the floor. What should you do?

Push down the brake pedal as hard as you can
Pump the brake pedal to generate pressure – 正确答案
Put the vehicle in neutral and set the parking brake
Keep driving and hoping that it will come back up

当你在驾驶过程中遇到液压刹车系统发生故障，刹车系统不再积聚压力，并且刹车板踩上去会感到软绵绵或掉落在地板上。这时你应该反复的踩放刹车板以促使刹车系统产生压力。

You must keep the papers for hauling hazardous materials

inside the toolbox
in the pouch of driver’s door – 正确答案
under the driver seat
in the glove compartment which must be working

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

美国卡车驾照基本理论模拟题库