1、Which one of the following vehicle types is not allowed to pass, as indicated by the right-hand sign?
A、Large trucks
B、Large buses
C、Motor vehicles of all kinds
D、Small vans
Answer：C
2、When a motor vehicle moves through water, the driver should try to maintain a constant speed and sufficient power and pass through without stopping.
A、Right
B、Wrong
Answer：A
3、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
4、When driving on this dangerous mountainside road motor vehicle drivers should drive along the left side of the road.
A、Right
B、Wrong
Answer：B
5、The sign in front indicates the name and number of the highway.
A、Right
B、Wrong
Answer：A
6、The sign on the right warns of an unguarded railway intersection ahead.
A、Right
B、Wrong
Answer：B
7、Once inflammable gas causes a fire disaster, it should be put out with water in good time.
A、Right
B、Wrong
Answer：B
8、Which of the following is a safe way for motor vehicles to pass the intersection marked with this sign?
A、Stop and observe the traffic situation around the intersection
B、Approach the intersection by speeding up
C、Observe the traffic situation on the left rear side
D、Approach the intersection at a reduced speed
Answer：D
9、The sign on the left indicates no U-turn at the intersection ahead.
A、Right
B、Wrong
Answer：A
10、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
11、When there is a braking failure on a downhill road, if there is no other alternative, the driver may rub the vehicle body against the rocks and trees on roadside to force the vehicle to slow down and stop.
A、Right
B、Wrong
Answer：A
12、When a motor vehicle enters an expressway from the ramp, which of the following lamps should be turned on?
A、The left-turn indicator
B、The right-turn indicator
C、The hazard warning lamp
D、The headlamp
Answer：A
13、The sign in front is an advance announcement of the directions led by this intersection.
A、Right
B、Wrong
Answer：A
14、The sign on the right warns of a sharp winding road ahead.
A、Right
B、Wrong
Answer：B
15、The sign in front indicates that the highway entry is on the right side of the road.
A、Right
B、Wrong
Answer：B
16、When a motor vehicle breaks down on an expressway and cannot be moved away from the driving lane, the driver may conduct emergency repairs on the driving lane.
A、Right
B、Wrong
Answer：B
17、When the vehicle engine catches fire, what should the driver do first?
A、Turn off the engine as soon as possible
B、Extinguish the fire with water
C、Open the hood to extinguish the fire
D、Extinguish the fire from the leeward direction
Answer：A
18、The sign in front indicates a 4-kilometer distance from the next exit.
A、Right
B、Wrong
Answer：A
19、When a motor vehicle leaves an expressway, which of the following lamp should be turned on?
A、The left-turn indicator
B、The right-turn indicator
C、The hazard warning lamp
D、The headlamp
Answer：B
20、When driving on an expressway in rain, the driver should slow down to avoid steering failure arising from "water slide"
A、Right
B、Wrong
Answer：A
21、A motor vehicle should not pass the level crossing rapidly in this situation.
A、Right
B、Wrong
Answer：A
22、Motor vehicle drivers are allowed to make a U-turn at this intersection.
A、Right
B、Wrong
Answer：B
23、The sign on the right warns of no passing on either side of the road ahead.
A、Right
B、Wrong
Answer：B
24、Which is the wrong measure to avoid tire burst?
A、Reduce tire pressure
B、Check tires regularly
C、Remove foreign matters from the tire tread grooves timely
D、Replace tires that have cracks or deep cuts
Answer：A
25、had a head-on collision at the speed of 40 kilometers per hour with Mr. Wangs three-wheeled freight motorcycle carrying 19 passengers, killing10 people nd injuring 9. What are the main illegal acts committed by the two drivers?
A、Mr Ye drove an unpermitted vehicle type
B、Mr. Wang drove a freight motorcycle to carry passengers
C、Mr Ye exceeded the speed limit
D、Mr. Wang failed to follow the guidance of the traffic signal lights
Answer：BC