1、Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
A、Oxidizing materials
B、Inflammable solid materials
C、Explosives
D、Self-igniting articles
Answer：C
2、If a motor vehicle has an accident on a foggy day and stops on an expressway, which of the following acts is dangerous?
A、Leaving the motor vehicle as soon as possible
B、Standing outside the guardrail as much as possible
C、Turning on the hazard lamp and fog lamp
D、Placing a warning sign behind the vehicle in the oncoming direction
Answer：D
3、The sign on the right warns of a dangerous mountainside road ahead.
A、Right
B、Wrong
Answer：A
4、As shown in this flash, what should the motor vehicle driver do when encounters this situation?
A、Use the mergency brake
B、Turn sharply and pass rapidly
C、Slide over rapidly without encountering collision
D、Stop smoothly
Answer：D
5、The sign on the right indicates that the speed limit is 50km/hour.
A、Right
B、Wrong
Answer：B
6、When a motor vehicle encounters this situation at a crosswalk, the driver must slow down and pass slowly.
A、Right
B、Wrong
Answer：B
7、When the tire pressure is too low, what can happen when driving at a high speed?
A、Tire pressure will be unstable
B、Tire pressure will increase
C、Driving resistance will decrease
D、The tire will burst
Answer：D
8、The guide arrow on the road surface of this lane indicates that drivers are only permitted to continue straight at the intersection ahead.
A、Right
B、Wrong
Answer：A
9、How should a motor vehicle follow the other vehicle In front when driving on a road covered with ice and snow?
A、Keep a long safe distance
B、Turn on hazard lamp
C、Change between high-and-low beam alternatively
D、Sound the horn in due time to give a notice to the vehicle in front
Answer：A
10、When the rear wheels of a motor vehicle skid sideways on a muddy road, the driver should turn the steering wheel in the opposite direction of the side skid.
A、Right
B、Wrong
Answer：B
11、If a driver finds there is no vehicle behind, he/she may change lanes without turning on the indicator.
A、Right
B、Wrong
Answer：B
12、When putting out a fire disaster that gives out corrosive steam or poisonous gas, the firefighters should wear gas masks and other related protective articles and operate from the windward side.
A、Right
B、Wrong
Answer：A
13、When encountering such pedestrians, what should motor vehicle drivers do?
A、Bypass in front of the pedestrians
B、Bypass from behind the pedestrians
C、Sound the horn to alert the pedestrians
D、Voluntarily stop and yield
Answer：D
14、The sign on the right warns of a ferry crossing 100 meters after turning right at the intersection ahead.
A、Right
B、Wrong
Answer：A
15、Those traffic police signals mean turning right.
A、Right
B、Wrong
Answer：B
16、In the condition of low visibility, drivers should turn on the low-beam when setting off
A、Right
B、Wrong
Answer：A
17、What kind of harmful effect will be brought about by continuously using the foot brake on a long downhill road?
A、Shorten the engine's service life
B、Make the driver feel tired
C、Easily cause the vehicle to overturn
D、Reduce the braking efficiency
Answer：D
18、Motor vehicle drivers may make a U-turn in the broken line area as long as it will not affect the normal traffic flow.
A、Right
B、Wrong
Answer：A
19、Mr. He drove his large bus with 53 passengers (permitted carrying capacity 47) to 454 km mark by 100m along the Yining-hefei Expressway in Nanjing jurisdiction, where he was tailgated by a heavy-type semitrailer tractor. The bus left the road, breaking through the guardrail and catching fire. 17 people were killed and 27 injured. Which of the following law-breaking acts did Mr. He commit?
A、Speeding
B、Exceeding the carrying capacity of the motor bus
C、Driving a motor vehicle overdue for annual inspection
D、Improper operation
Answer：B
20、After a tire bursts and before the driver can control the speed of the vehicle, he/she should not risk using the foot brake to stop the vehicle. Otherwise, a horizontal swing of the vehicle can cause greater danger.
A、Right
B、Wrong
Answer：A