1、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
2、At this intersection, motor vehicle drivers may directly make a U-turn along the U-turn turning lane.
A、Right
B、Wrong
Answer：B
3、The sign on the right warns of a sharp winding road ahead.
A、Right
B、Wrong
Answer：B
4、The sign on the right warns of a wet road surface ahead.
A、Right
B、Wrong
Answer：A
5、It is safest for a motor vehicle driver to overtake the vehicle in front from its righthand on this kind of road.
A、Right
B、Wrong
Answer：B
6、A motor vehicle may stop and yield if it encounters any problem when changing to the driving lane from an acceleration lane.
A、Right
B、Wrong
Answer：B
7、The main impact of muddy roads on safe driving is that the wheels may easily spin and skid
A、Right
B、Wrong
Answer：A
8、When the motor vehicle stops on a downhill section how should the driver use the foot brake?
A、Earlier than on a level road
B、Later than on a level road
C、As timely as on a level road
D、Gently depress the foot brake pedal
Answer：A
9、When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
A、Change to a high gear and pass rapidly
B、Constantly observe the changes of the flow
C、Prepare to stop at any time
D、Change to a low gear and pass through at a constant speed
Answer：D
10、Motor vehicle drivers may make a U-turn in this area as long as it will not affect the passing of pedestrians.
A、Right
B、Wrong
Answer：B
11、Which one of the following is the safest way when driving a motor vehicle on this road?
A、Cutting speed or stopping to yield
B、Driving along the center of the road
C、Keeping a normal speed
D、Approaching vehicles by taking the opposite lane
Answer：A
12、The guide line of a changeable lane indicates that drivers can choose their direction at will.
A、Right
B、Wrong
Answer：B
13、When the speed indicated by the speed limit sign on the highway contradicts the speed indicated for the specific lanes the speed indicated for the specific lanes should prevail.
A、Right
B、Wrong
Answer：B
14、Under this circumstance, motor vehicle drivers should give the right of way to oncoming vehicle.
A、Right
B、Wrong
Answer：A
15、The driver should turn on the left-turn indicator after entering the acceleration lane on an expressway.
A、Right
B、Wrong
Answer：B
16、When encountering such a situation, the vehicles should cut speed or stop to yield as approaching each other.
A、Right
B、Wrong
Answer：A
17、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
18、The sign on the right indicates the road width ahead is limited to 3 meters.
A、Right
B、Wrong
Answer：A
19、The sign on the right warns of a non-motor vehicle lane.
A、Right
B、Wrong
Answer：B
20、Under such circumstances, motor vehicles are allowed to cross the central solid line to overtake.
A、Right
B、Wrong
Answer：B
21、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
22、Once inflammable gas causes a fire disaster, it should be put out with water in good time.
A、Right
B、Wrong
Answer：B
23、Before driving, it is necessary to check whether the cooling liquid, engine oil and fuel oil, are leaking.
A、Right
B、Wrong
Answer：A
24、The driver should speed up to 40 kilometers per hour when he/she sees this traffic sign.
A、Right
B、Wrong
Answer：B
25、When the electric equipment and gasoline of a motor vehicle catches fire, the driver may extinguish the fire with water.
A、Right
B、Wrong
Answer：B