1、How many kinds of law-breaking acts are displayed in flash 4?
A、One
B、Two
C、Three
D、Four
Answer：C
2、A motor vehicle should not pass the level crossing rapidly in this situation.
A、Right
B、Wrong
Answer：A
3、Under such circumstances, what should motor vehicle drivers do?
A、Guard against the sideslip of motor vehicles
B、Guard against the crossing of pedestrians
C、Speed up and pass through as quickly as possible
D、Continuously sound the horn
Answer：B
4、When there is a braking failure on a downhill road the driver should change the gear to one position or two positions lower, and control the speed by taking advantage of the braking role of the engine.
A、Right
B、Wrong
Answer：A
5、The sign on the left indicates no U-turn at the intersection ahead.
A、Right
B、Wrong
Answer：A
6、When seeing this sign, the driver should slow down promptly.
A、Right
B、Wrong
Answer：A
7、What should the driver do to follow other motor vehicles on a mountain road?
A、Closely follow the vehicle in front
B、Increase the safety distance
C、Reduce the vertical distance between vehicles
D、Try to overtake the vehicle in front as soon as possible
Answer：B
8、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
9、As shown in this picture, the vehicles intending to turn left are allowed to drive into the left-turn waiting area directly to wait for the green light.
A、Right
B、Wrong
Answer：B
10、When there is a sudden braking failure on the road, what should be done by the driver?
A、Firmly holding the steering wheel and controlling the direction
B、Immediately changing to a low gear to reduce speed
C、Using the stopping brake to reduce speed
D、Turning on the hazard lamps
Answer：ABCD
11、If a motor vehicle is unable to drive in heavy fog on an expressway due to an accident, what should the driver do?
A、The driver and all passengers should promptly get off the motor vehicle from the left side door
B、Set up a warning sign 100 meters behind the vehicle in the oncoming direction
C、Turn on the hazard lamp and the high-beam
D、Stand in a safe place outside the guardrail
Answer：D
12、When there is a sudden braking failure on a downhill road, what should be done by the driver?
A、Driving to an emergency lane and reducing speed to stop
B、Dropping the gear by two positions
C、Changing to the reverse gear to force the vehicle to stop
D、Reducing speed by pulling up the handbrake
Answer：A
13、When a tire suddenly bursts on the road, in which of the following ways can motor vehicle drivers keep safe?
A、Applying emergency braking and pulling over
B、Firmly holding the steering wheel and keeping the vehicle going straight
C、Immediately releasing the accelerator pedal
D、Gently depressing the brake pedal
Answer：BCD
14、Drivers neednt yield to pedestrians who display such behavior.
A、Right
B、Wrong
Answer：B
15、Drivers may temporarily cross these central solid double yellow lines when overtaking.
A、Right
B、Wrong
Answer：B
16、Which one of the following statements is correct in this situation?
A、Vehicles are prohibited from passing in the lanes on either side
B、Move into the lane on either side at a reduced speed
C、Move into the lane on the right side
D、Move into the lane on either side at an increased speed
Answer：A
17、The sign in front indicates a 4-kilometer distance from the next exit.
A、Right
B、Wrong
Answer：A
18、When encountering children in this condition, what should motor vehicle drivers do?
A、Go ahead by following the children closely
B、Speed up and overtake from the left side of the children
C、Sound the horn to alert the children
D、Reduce speed or stop to yield
Answer：D
19、One day, Mr. Yang drove a large bus with 57 passengers(bus capacity 55 people)from 7 pm to 1 am the following morning. At the spot of 3008 kilometers mark by 110 meters on the No. 050 National Road in Jin Chengjiang District, the bus had a malignant traffic accident caused by front left tire burst, killing12 people and injuring 22. What's the main illegal act committed by Mr Yang?
A、Fatigued driving
B、Carrying more passengers than permitted
C、Speeding
D、Misoperation
Answer：AB
20、What should the driver do in this situation?
A、Speed up and overtake from the left side
B、Sound the horn continuously to warn the bicycle
C、Follow the bicycle closely
D、Slow down and yield to the bicycle
Answer：D
21、This sign indicates that vehicles can either drive straight or turn right at the fly-over junction ahead.
A、Right
B、Wrong
Answer：B
22、When braking failure happens to a fast-moving motor vehicle, what should be done by the driver to brake?
A、Continuously depressing the brake pedal
B、Immediately changing to a low gear to reduce speed and using the handbrake
C、Swiftly depressing the clutch pedal
D、Swiftly pulling up the handbrake
Answer：B
23、The sign on the right indicates a bypass flow intersection ahead.
A、Right
B、Wrong
Answer：B
24、If a motor vehicle breaks down or causes a traffic accident on the expressway and cannot run normally the vehicle may be towed by any accompanying motor vehicles.
A、Right
B、Wrong
Answer：B
25、The sign on the right is an advance announcement of the highway destination.
A、Right
B、Wrong
Answer：B