1、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
2、If the road condition behind is good, motor vehicle drivers should reverse rapidly.
A、Right
B、Wrong
Answer：B
3、The sign on the left indicates U-turn is allowed here.
A、Right
B、Wrong
Answer：A
4、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
5、The motor vehicle may promptly overtake the vehicle in front from the left side in this situation.
A、Right
B、Wrong
Answer：B
6、The sign on the right warns of a one-way tunnel ahead.
A、Right
B、Wrong
Answer：B
7、The braking distance will be shortened greatly when the motor vehicle is equipped with ABS brakes.
A、Right
B、Wrong
Answer：B
8、When driving a motor vehicle into a traffic flow, drivers should not hold up other vehicles.
A、Right
B、Wrong
Answer：A
9、The sign on the left warns of no passing on the right-hand road ahead.
A、Right
B、Wrong
Answer：B
10、What should be done to keep safe when a motor vehicle driver is overtaking in this condition?
A、Reducing speed and keeping a safe distance
B、Continuously sounding the horn to indicate the vehicle in front
C、Accelerating to pass while keeping a certain distance
D、Overtaking by occupying the opposite lane
Answer：A
11、When a motor vehicle passes over an inundated road, what should the driver do for safe driving?
A、Slow down and drive with special care
B、Speed up and pass rapidly
C、Maintain a normal speed and pass through
D、Change to a low gear and speed up to pass
Answer：A
12、When driving on an expressway, drivers should not frequently change lanes.
A、Right
B、Wrong
Answer：A
13、When encountering such pedestrians while driving, a longer safety distance should be kept by drivers.
A、Right
B、Wrong
Answer：A
14、The marking on the road surface indicates that the speed limit of this road section is 50 km/hour.
A、Right
B、Wrong
Answer：A
15、Mr. Tao drove a midsize bus with 33 passengers. At the spot of 163 kilometers on the South Xuping Expressway, the bus clashed at a speed of 120 kilometers per hour with Mr. Ans minibus parked without any warning signs on the inside lane, due to breakdown after an accident. The midsize bus overturned after collided with the guardrail on the right-hand side. As a result of the accident, 16 people were killed and 15 injured. What are the main illega acts of the two drivers?
A、Mr. Tao carried more passengers than permitted
B、Mr. Tao exceeded speed limit
C、Mr. An failed to place any warning signs in accordance with relevant stipulations
D、Mr. An was illegally parked
Answer：ABC
16、The white zig-zag line on the highway serves as a reference for the speed of a driver.
A、Right
B、Wrong
Answer：B
17、This sign indicates the traffic broadcast and radio television channel of highway.
A、Right
B、Wrong
Answer：B
18、Motor vehicles are prohibited from turning left in this situation.
A、Right
B、Wrong
Answer：A
19、The sign on the right side warns of an abrupt downhill section ahead.
A、Right
B、Wrong
Answer：B
20、A correct measure to avoid tire burst of motor vehicles is to lower the tire pressure.
A、Right
B、Wrong
Answer：B
21、Driving and smoking has no negative effect on safe driving
A、Right
B、Wrong
Answer：B
22、Drivers may turn left when seeing these hand signals.
A、Right
B、Wrong
Answer：A
23、Drivers may temporarily cross these central solid double yellow lines when overtaking.
A、Right
B、Wrong
Answer：B
24、When encountering this situation in a residential area, the driver should follow them closely.
A、Right
B、Wrong
Answer：B
25、Motor vehicle drivers are allowed to overtake on this road section.
A、Right
B、Wrong
Answer：B