雅安科目四英语pdf
1、The sign on the right warns of a dangerous mountainside road on the left of the road ahead.
A. Right
B. Wrong
Answer：B
2、When driving on an expressway, drivers should not frequently change lanes.
A. Right
B. Wrong
Answer：A
3、The road marker indicates that vehicles are only allowed to turn right at the intersection ahead.
A. Right
B. Wrong
Answer：B
4、When making a turn on a mountainous road, drivers should cut speed, sound the horn and drive along the right side.
A. Right
B. Wrong
Answer：A
5、The drivers, loaders and supercargoes responsible for dangerous chemicals transportation should all full understand the chemical characteristics, potential risks, features of the packaging containers and emergency measures for any unexpected accidents.
A. Right
B. Wrong
Answer：A
6、When the tire pressure is too low, what can happen when driving at a high speed?
A. Tire pressure will be unstable
B. Tire pressure will increase
C. Driving resistance will decrease
D. The tire will burst
Answer：D
7、When the engine suddenly stalls on the road and cannot be restarted, the driver should apply emergency braking to force the vehicle to stop as fast as possible.
A. Right
B. Wrong
Answer：B
8、Motor vehicles are not allowed to stop in this area for a long time.
A. Right
B. Wrong
Answer：A
9、The broken yellow line in the center of the road indicates that overtaking by crossing the line is permitted in safe situations.
A. Right
B. Wrong
Answer：A
10、Motor vehicles drivers may overtake by borrowing the opposite lane on this kind of road.
A. Right
B. Wrong
Answer：B
11、Which of the following is an inflammable solid material?
A. Matches
B. Gun powder
C. Calcium carbide
D. Explosives
Answer：A
12、When driving on the expressway in a heavy rain, what should the driver do to avoid "water sliding" phenomenon?
A. Install slide-proof devices
B. Speed up
C. Slow down
D. Continue to depress the brake
Answer：C
13、Under such circumstances, motor vehicle drivers should bypass on the left quickly.
A. Right
B. Wrong
Answer：B
14、The sign in the red circle indicates that the left road is only for small vehicles.
A. Right
B. Wrong
Answer：B
15、Under such circumstances, what should be done by the motor vehicle driver?
A. Reducing speed to give the right of way to the non-motor vehicle
B. Continuously sounding the horn to warn the vehicle in front to yield
C. Bypassing on the left of the non-motor vehicle
D. Accelerating to overtake by occupying the opposite lane
Answer：A
16、When a motor vehicle breaks down and has to be stopped on the highway, what should the driver do?
A. Set up a breakdown warning sign 150 meters behind the vehicle
B. Set up a breakdown warning sign 100 meters behind the vehicle
C. If it happens at night, turn on the clearance lamp and rear position lamp
D. Turn on the hazard lamps
Answer：ACD
17、When rescuing a wounded person suffering from spinal fracture, which of the following measures should be taken?
A. Prevent heat loss
B. Rescue the wounded person with a soft stretcher
C. Keep the wounded part in position with a sling
D. Help the wounded person when walking
Answer：C
18、When driving on a muddy road, the driver should hold the steering wheel firmly and speed up to pass through.
A. Right
B. Wrong
Answer：B
19、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
20、The sign on the right indicates that no long-sounding horn.
A. Right
B. Wrong
Answer：B