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、The motor vehicle equipped with ABS may sideslip during an emergency brake.
A、Right
B、Wrong
Answer：A
3、The sign on the right warns for livestock on the road ahead.
A、Right
B、Wrong
Answer：B
4、When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
A、Change to a high gear and pass rapidly
B、Constantly observe the changes of the flow
C、Prepare to stop at any time
D、Change to a low gear and pass through at a constant speed
Answer：D
5、Drivers may temporarily cross these central broken and solid yellow lines when overtaking.
A、Right
B、Wrong
Answer：A
6、When there is a braking failure on a downhill road the driver should change the gear to one position or two positions lower, and control the speed by taking advantage of the braking role of the engine.
A、Right
B、Wrong
Answer：A
7、The sign on the right warns of a bumpy road ahead.
A、Right
B、Wrong
Answer：B
8、Motor vehicles on this kind of road are only allowed to overtake the vehicle in front from left.
A、Right
B、Wrong
Answer：A
9、Which of the following acts are prohibited when passing through a tunnel?
A、Overtaking
B、Stopping
C、Making a U-turn
D、Reversing
Answer：ABCD
10、The sign on the right warns of low-lying road ahead.
A、Right
B、Wrong
Answer：A
11、The sign on the right warns of traffic signals ahead.
A、Right
B、Wrong
Answer：A
12、Under such circumstances, motor vehicle drivers may sound the horn at the proper time and speed up to pass through.
A、Right
B、Wrong
Answer：B
13、When the windscreen of a motor vehicle on the highway is cracked by flying rocks or debris which makes visibility poor, the driver should reduce speed gradually, turn on the hazardlamps, drive to a place where it will not obstruct the traffic flow and stop there.
A、Right
B、Wrong
Answer：A
14、If a motor vehicle enters a driving lane under this situation, what should the driver do?
A、Control the driving speed and follow the last vehicle
B、Speed up and cut in front of the second vehicl
C、Speed up and cut in front of the first vehicle
D、Cut in between two vehicles at will
Answer：A
15、When there is a sudden braking failure on the road, what should be done by the driver?
A、Firmly holding the steering wheel and controlling the direction
B、Immediately changing to a low gear to reduce speed
C、Using the stopping brake to reduce speed
D、Turning on the hazard lamps
Answer：ABCD
16、Under such circumstances, what should be done by a motor vehicle driver in order to yield out of courtesy?
A、Driving at a higher speed
B、Closely following the vehicle in front
C、Driving at a higher speed by the right side
D、Driving at a lower speed by the right side
Answer：D
17、Motor vehicles are prohibited from driving straight or turning left in this situation.
A、Right
B、Wrong
Answer：A
18、When a motor vehicle turns left at this intersection the driver should change to the left lane in advance by the guide arrow.
A、Right
B、Wrong
Answer：A
19、When a collision occurs on the passenger seat side or the impact is relatively small, which of the following methods is incorrect?
A、Firmly holding the steering wheel
B、Stretching both feet forward
C、Jumping out of the vehicle from one side
D、Leaning body backwards against the seat
Answer：C
20、For a temporary stop on a foggy day, the driver should only turn on the fog lamp and the low-beam
A、Right
B、Wrong
Answer：B