1、After a traffic accident, what is the most effective measure to prevent secondary accidents?
A、Evacuate all passengers
B、Turn on the hazard lamps
C、Mark the original place of the injured persons
D、Properly place the danger warning sign
Answer：ABD
2、When finding a tire suddenly burst on the road, the driver should firmly hold the steering wheel with both hands to ensure the vehicle goes straight.
A、Right
B、Wrong
Answer：A
3、When encountering such a situation, motor vehicle drivers should take the left lane.
A、Right
B、Wrong
Answer：B
4、Drivers are not allowed to cross these lane-dividing lines when overtaking in the same direction.
A、Right
B、Wrong
Answer：A
5、When finding a tire burst on the road, the driver should use emergency braking while controlling the direction of the vehicle at the same time to stop the vehicle qulckly.
A、Right
B、Wrong
Answer：B
6、When removing a wounded person suffering spinal fracture, the rescuer should never help the wounded person to walk. He may be carried away with a soft stretcher.
A、Right
B、Wrong
Answer：B
7、Under such circumstances, what should the motor venicle driver do?
A、Reduce speed and yield by the left side
B、Reduce speed and yield by the right side
C、Speed up and yield by the left side
D、Go ahead along the original route
Answer：A
8、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
9、How will the adhesive force of road change when speed increases on a damp and slippery road?
A、Increase sharply
B、increase gradually
C、decrease sharply
D、No change
Answer：C
10、What needs attention when a motor vehicle drives on a road covered with ice and snow?
A、Braking length is extended
B、Anti-skating resistance will be greater
C、The adhesive force of the road will be greater
D、The braking length will be shorter
Answer：A
11、Motor vehicle drivers are allowed to overtake on this road section.
A、Right
B、Wrong
Answer：B
12、Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
A、Right
B、Wrong
Answer：A
13、The sign on the right warns of three or more winding roads ahead.
A、Right
B、Wrong
Answer：B
14、The signs on each side warn of changes in road alignment ahead.
A、Right
B、Wrong
Answer：A
15、Under such circumstances, what should be done by motor vehicle drivers in order to maintain safe driving?
A、Sound the horn or turn on the headlamps
B、Reduce speed or drive on the right side
C、Keep to the central line as best as possible
D、Drive on the left side of the road
Answer：B
16、How to ensure motor vehicles have sufficient power when driving uphill?
A、Downshift before reducing speed
B、Downshift after reducing speed
C、Downshift when the speed is excessively low
D、Downshift to the fullest extent
Answer：A
17、Motor vehicles are permitted to move to the right lane at this intersection.
A、Right
B、Wrong
Answer：B
18、As shown in the flash, the driver's act is correct.
A、Right
B、Wrong
Answer：B
19、Motor vehicle drivers should rush to the top of the slope in this situation.
A、Right
B、Wrong
Answer：B
20、When a gas tanker is leaking heavily, which of the following measures is wrong?
A、Cut off the power
B、Wear gas mask and protect gloves
C、Turn off the valve to stop leaking
D、Evacuate people to the leeward side
Answer：D
21、The sign on the right warns of low-lying road ahead.
A、Right
B、Wrong
Answer：A
22、When a motor vehicle temporarily stops in fog, which lamp should be turned on?
A、Hazard lamp, clearance lamp and rear position lamp
B、Left-turn indicator, clearance lamp and rear position amp
C、Headlamp, clearance lamp and rear position lamp
D、Reverse lamp, clearance lamp and rear position lamp
Answer：A
23、The sign on the right indicates that the number of the lanes ahead will increase.
A、Right
B、Wrong
Answer：B
24、When driving a motor vehicle equipped with power steering, the driver should firmly hold the steering wheel and drive slowly if he/she suddenly finds that steering is difficult.
A、Right
B、Wrong
Answer：B
25、The diamond-shaped sign on the road indicates a crosswalk on the road ahead.
A、Right
B、Wrong
Answer：A