1、Mr. He drove his large bus with 53 passengers (permitted carrying capacity 47) to 454 km mark by 100m along the Yining-hefei Expressway in Nanjing jurisdiction, where he was tailgated by a heavy-type semitrailer tractor. The bus left the road, breaking through the guardrail and catching fire. 17 people were killed and 27 injured. Which of the following law-breaking acts did Mr. He commit?
A、Speeding
B、Exceeding the carrying capacity of the motor bus
C、Driving a motor vehicle overdue for annual inspection
D、Improper operation
Answer：B
2、What should be checked before driving?
A、No parts need to be checked
B、Whether the tires have been cleaned
C、Where the spare tire is placed
D、The fastening and air pressure of tires
Answer：D
3、This sign indicates that vehicles can either drive straight or turn right at the fly-over junction ahead.
A、Right
B、Wrong
Answer：B
4、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
5、If a motor vehicle misses an exit on the expressway, the driver may reverse along the road shoulder.
A、Right
B、Wrong
Answer：B
6、What should the driver do upon finding a burst rear tire?
A、Adjust by swiftly turning the steering wheel
B、Control the direction while reducing speed slowly
C、Swiftly turn the steering wheel to the opposi direction
D、Swiftly take braking measures
Answer：B
7、When driving on an expressway, drivers should not frequently change lanes.
A、Right
B、Wrong
Answer：A
8、When there is bleeding at the bone fracture of a wounded person, the first thing to do is to fix the wounded part in position, then stop the bleeding and dress the wound.
A、Right
B、Wrong
Answer：B
9、When a motor vehicle turns at an excessively high speed, it can easily slide sideways.
A、Right
B、Wrong
Answer：A
10、The sign on the right indicates right-hand turn only.
A、Right
B、Wrong
Answer：A
11、The distance-ascertaining section of an expressway is used for the drivers to ascertain the safety distance when the speed is 100 kilometers per hour.
A、Right
B、Wrong
Answer：A
12、The sign on the right warns of entering a tunnel, and requires reduced speed.
A、Right
B、Wrong
Answer：B
13、When there is no bandage for rescuing a wounded person, which of the following measures is wrong?
A、Dress the wounds with a handkerchief
B、Dress the wounds with a towe
C、Dress the wounds with cotton clothes
D、Dress the wounds with string
Answer：D
14、The slanted filled-in yellow marking in the middle of the road warns that there is a stationary obstacle ahead.
A、Right
B、Wrong
Answer：A
15、As shown in the flash, the motor vehicle chooses a correct way to pass through the level crossing.
A、Right
B、Wrong
Answer：A
16、The sign on the right indicates a T-shaped intersection head.
A、Right
B、Wrong
Answer：B
17、The white solid line on the right side of the road indicates the boundary of a driving lane and crosswalk.
A、Right
B、Wrong
Answer：B
18、Under such circumstances, the driver should stop the vehicle and yield to pedestrians.
A、Right
B、Wrong
Answer：A
19、When a motor vehicle skids sideways on a muddy road, the driver should turn the steering wheel in the direction of the rear wheel skidding to properly adjust the direction.
A、Right
B、Wrong
Answer：A
20、Drivers may turn left when traffic police give these hand signals.
A、Right
B、Wrong
Answer：B