1、Motor vehicles should stop and wait when encountering two red lights flashing alternately at evel crossings.
A、Right
B、Wrong
Answer：A
2、This sign warns of an intersection of railways and highways ahead.
A、Right
B、Wrong
Answer：A
3、When encountering a school bus which stops at the right roadside and students are embarking or disembarking, and there are two motor vehicle lanes in each direction, motor vehicle drivers on the left lane behind the bus should stop and wait.
A、Right
B、Wrong
Answer：A
4、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
5、Motor vehicles are not permitted to change lanes in this position.
A、Right
B、Wrong
Answer：A
6、The sign on the right warns that the road will narrow over the next 5 kilometers.
A、Right
B、Wrong
Answer：A
7、Which of the following is a basic requirement for rescuing the injured at the scene of a traffic accident?
A、Treat wounds first and safe life later
B、Save life first and treat wounds later
C、Help lightly wounded persons first
D、Help seriously wounded persons later
Answer：B
8、When a motor vehicle approaches the exit of a tunnel the driver should firmly hold the steering wheel to prevent any harmful effects of a strong side wind.
A、Right
B、Wrong
Answer：A
9、The guide arrow on the road surface of this lane indicates that the lanes ahead will merge to the left side.
A、Right
B、Wrong
Answer：A
10、Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
A、Front and rear fog lamps
B、Low-beam
C、High-beam
D、Hazard lamp
Answer：B
11、The white solid line on the right side of the road indicates the boundary of a driving lane and crosswalk.
A、Right
B、Wrong
Answer：B
12、The sign on the left indicates vehicles are allowed to drive on the section ahead.
A、Right
B、Wrong
Answer：B
13、After a motor vehicle falls into water, the driver should immediately close the windows to prevent water from flowing into the compartment and to keep the air from flowing out. At the same time, he/she should make calls to tell the rescue personnel the place of the accident and wait for their arrival.
A、Right
B、Wrong
Answer：B
14、Mr. Qi drove a large bus with 28 passengers(capacit 55 people). When arriving at an intersection without any traffic signals from south to north at a speed of 50 kilometers per hour, the bus had a side collision with Mr. Li's heavy semi-trailer tractor (capacity 40 tons and carrying 55.2 tons) running from east to west. As a result of this accident, 12 people were killed and 17 injured. What are the main illegal acts in this case?
A、The bus carried more passengers than capacity
B、The bus exceeded the speed limit
C、The tractor carried more cargo than capacity
D、The driver of the tractor was inexperienced
Answer：BC
15、Under such circumstances at a congested intersection, what should motor vehicle drivers do?
A、Force the vehicle to go back to its original lane
B、Closely follow the vehicle in front and refuse to yield
C、Politely yield and pass through
D、Sound the horn and turn on the head lamps
Answer：C
16、When the engine suddenly stalls on the road and cannot be restarted, the driver should apply emergency braking to force the vehicle to stop as fastas possible.
A、Right
B、Wrong
Answer：B
17、Drivers are not allowed to drive on or across these filled-in slanted yellow lines.
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、When a motor vehicle encounters an emergency on an expressway, the driver should not swiftly turn the steering wheel to evade.
A、Right
B、Wrong
Answer：A
20、At this intersection, motor vehicle drivers may directly make a U-turn along the U-turn turning lane.
A、Right
B、Wrong
Answer：B