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、Drivers may turn right at the intersection when traffic police give these hand signals.
A、Right
B、Wrong
Answer：A
3、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
4、The sign on the right warns of children on the section ahead.
A、Right
B、Wrong
Answer：B
5、When a gas tanker is leaking heavily, which of the following measures is wrong?
A、Cut off the power
B、Wear gas mask and protect gloves
C、Turn off the valve to stop leaking
D、Evacuate people to the leeward side
Answer：D
6、When extinguishing a fire, the driver should refrain from breathing through mouth or crying loudly Otherwise, the fire and smoke will scorch the upper respiratory tract.
A、Right
B、Wrong
Answer：A
7、When encountering a school bus which stops at the right roadside and students are embarking or disembarking, and there are three 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：B
8、When going straight or turning right, drivers are not allowed to drive on or across the guide lines on both sides of the intersection.
A、Right
B、Wrong
Answer：A
9、When this signal is constantly flashing, how should a driver react?
A、Speed up as soon as possible
B、Pull over and wait
C、Observe the traffic situation around to make sure of safe driving
D、Refrain from passing
Answer：C
10、What should motor vehicle drivers do when going straight and passing through the intersection ahead?
A、Reduce speed when approaching the intersection
B、Reduce speed after entering the intersection
C、May pass through the intersection without speed reduction
D、Accelerate in advance to pass through the intersection
Answer：A
11、When overtaking on a rainy day, drivers should turn on headlamps and sound a long horn.
A、Right
B、Wrong
Answer：B
12、If a motor vehicle misses an exit on the expressway, the driver may reverse along the road shoulder.
A、Right
B、Wrong
Answer：B
13、The broken yellow line in the center of the road indicates that bypassing by crossing the line is prohibited in any condition.
A、Right
B、Wrong
Answer：B
14、When a motor vehicle encounters an accident on an expressway, the driver and all passengers should not get off the vehicle and walk around at will.
A、Right
B、Wrong
Answer：B
15、Motor vehicles can turn right when driving into an intersection with this traffic signal.
A、Right
B、Wrong
Answer：A
16、When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
A、Overtake from either side of the front vehicle
B、Stop close to the vehicle in front
C、Stop with a larger space from the vehicle in front
D、Sound the horn continuously to warn the other driver
Answer：C
17、Motor vehicles are permitted to move to the right lane at this intersection.
A、Right
B、Wrong
Answer：B
18、Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
A、Right
B、Wrong
Answer：A
19、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
20、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