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、hen there is a braking failure on a downhill road the driver should immediately try to find and drive to an emergency lane; after stopping the vehicle on the emergency lane, the driver should pull up the stopping brake so as to prevent a second danger arising from the vehicle sliding.
A、Right
B、Wrong
Answer：A
3、The sign on the right warns of right-hand S-shaped bend ahead.
A、Right
B、Wrong
Answer：B
4、When driving in thick or extremely thick fog, what should the driver do due to the low visibility in such weather?
A、Turn on the headlamp and drive slowly
B、Turn on the fog lamp and drive slowl
C、Park in a safe place
D、Drive slowly close to the roadside
Answer：C
5、Drivers may cross these lane-dividing lines to change lanes in the same direction.
A、Right
B、Wrong
Answer：B
6、This sign indicates the traffic broadcast and radio television channel of highway.
A、Right
B、Wrong
Answer：B
7、The sign on the right indicates an emergency shield 100 meters ahead.
A、Right
B、Wrong
Answer：A
8、How many kinds of law-breaking acts are displayed in flash 5?
A、One
B、Two
C、Three
D、Four
Answer：C
9、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
10、If a motor vehicle experiences a "water sliding" phenomenon when running on an expressway in rain, what should the driver do?
A、Slow down by suddenly depressing the brake pedal
B、Slow down by slowly releasing the accelerator pedal
C、Turn the steering wheel immediately to adjust the direction
D、Speed up to increase the displacement of the wheels
Answer：B
11、The sign on the right indicates that the number of the lanes ahead will increase.
A、Right
B、Wrong
Answer：B
12、The sign on the right indicates notice by sounding the horn.
A、Right
B、Wrong
Answer：B
13、vehicles may stop temporarily in this area.
A、Right
B、Wrong
Answer：B
14、When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
A、Drive at a normal speed
B、Sound the horn to alert when approaching the pedestrians
C、Speed up and bypass on the left
D、Reduce speed and sound the horn in advance
Answer：D
15、The sign in front indicates that vehicles except large passenger vehicles are not allowed to drive on the right lane.
A、Right
B、Wrong
Answer：B
16、The sign in front indicates that the highway entry is on the right side of the road.
A、Right
B、Wrong
Answer：B
17、Mr Peng drove a heavy semi-trailer tractor with 37.7 tons of cargo(capacity 25 tons). When descending a slope on the Daguang Expressway, the tractor had a rear-end collision with Mr. Li's heavy dump truck ( carrying 3.17 cubes of loess and 24 passengers in the container)occupying the emergency lane. As a result of this accident, 16 people were killed and 13 injured What are the main illegal acts in this case?
A、Mr Peng exceeded the speed limit
B、Mr. Peng's tractor carried more cargo than limited
C、Mr Li illegally drove in the emergency lane
D、Mr. Li's truck illegally carried passengers in the container
Answer：BCD
18、Before making a U-turn at the intersection ahead, motor vehicle drivers should drive to the lane for turning left and going straight.
A、Right
B、Wrong
Answer：B
19、When encountering a vehicle in front ascending on a mountainous road covered with ice and snow, what should the motor vehicle driver do?
A、Ascend after the vehicle in front passes the slope
B、Overtake the vehicle in front swiftly and drive on
C、Overtake the vehicle in front with a slow speed and drive on
D、Follow the vehicle in front closely
Answer：A
20、Drivers may cross these central solid and broken yellow lines when overtaking.
A、Right
B、Wrong
Answer：B