1、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
2、Sideslip happens most easily on which one of the following road surfaces?
A、Dry concrete road
B、Road surface at the beginning of rain
C、Damp concrete road surface
D、Road in heavy rain
Answer：B
3、Before setting off, it is necessary to check the driving cabin, engine cabin, external and tires of the motor vehicle.
A、Right
B、Wrong
Answer：A
4、Motor vehicles are permitted to follow the guidance of the arrow in this picture and enter the lane of an expressway.
A、Right
B、Wrong
Answer：B
5、The sign in front indicates a one-kilometer distance from the highway entry.
A、Right
B、Wrong
Answer：A
6、Motor vehicle drivers are allowed to overtake on this road section.
A、Right
B、Wrong
Answer：B
7、What should the driver do when he/she encounters an oncoming ambulance in the same lane?
A、Keep to the side and reduce speed or stop to yield
B、Drive ahead by occupying another lane
C、Yield by speeding up and changing lanes
D、Drive ahead in the original lane
Answer：A
8、The sign on the right indicates that the speed limit is 50km/hour.
A、Right
B、Wrong
Answer：B
9、The sign on the right indicates the location of the highway emergency phone.
A、Right
B、Wrong
Answer：B
10、The sign above the tunnel indicates a height limit of 3.5 meters on the road ahead.
A、Right
B、Wrong
Answer：A
11、Crossing the broken white line on the right edge of the road is allowed.
A、Right
B、Wrong
Answer：A
12、If a fast-moving motor vehicle has a steering failure, using emergency braking will not cause an overturn.
A、Right
B、Wrong
Answer：B
13、When encountering such pedestrians, what should motor vehicle drivers do?
A、Bypass in front of the pedestrians
B、Bypass from behind the pedestrians
C、Sound the horn to alert the pedestrians
D、Voluntarily stop and yield
Answer：D
14、Under such circumstances, motor vehicle drivers should stop and yield
A、Right
B、Wrong
Answer：A
15、These traffic police signals indicate that passing is prohibited.
A、Right
B、Wrong
Answer：A
16、When evading an emergency, except for being calm what principle should be held by drivers?
A、Evading people first and then objects
B、Evading objects first and then vehicles
C、Evading vehicles first and then people
D、Evading objects first and then people
Answer：A
17、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
18、When a motor vehicle catches fire, the driver should swiftly turn off the engine and open the hood to extinguish the fire.
A、Right
B、Wrong
Answer：B
19、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
20、When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
A、The vehicle not encountering an obstacle should Yield to the other vehicle
B、The slower vehicle should yield to the faster
C、The vehicle encountering an obstacle should yield to the other vehicle
D、The faster vehicle should yield to the slower
Answer：C