21. One day, Mr. Yang drove a large bus with 57 passengers (bus capacity 55 people) from 7 pm to 1 am the following morning. At the spot of 3008 kilometers mark by 110 meters on the No. 050 National Road in Jin Chengjiang District, the bus had a malignant traffic accident caused by front left tire burst, killing 12 people and injuring 22. What is the main illegal act committed by Mr. Yang?
A. Fatigued driving
B. Carrying more passengers than permitted
C. Speeding
D. Misoperation
Answer：AB
2025年科目四英文版题库共700题，你可以免费查看前200题，完整版题库请添加微信购买：
The English version of the 2025 subject 4 question bank has a total of 700 questions. You can view the top 200 questions for free. Please add WeChat to purchase the complete version of the question bank.
Subject 4 test questions
- How many kinds of law-breaking acts are displayed in flash 8?
- Which of the following measures is incorrect when a motor vehicle stops?
- Motor vehicle drivers may make a U-turn in this area as long as it will not affect the passing of pedestrians.
- Under this circumstance, motor vehicle drivers should give the right of way to oncoming vehicle.
- When approaching a vehicle on a narrow slope, which one of the following ways is correct?
- When temporarily parking on a raining day, what kind of lamp should the driver turn on?
- What should the driver do in this situation?
- When encountering a situation like changing to a left lane, motor vehicle drivers should yield.
- In this situation, motor vehicles are permitted to stop temporarily at bus stations.
- At this intersection, motor vehicle drivers may directly make a U-turn along the U-turn turning lane.
- When disembarking, what should be done by drivers in order to keep safe?
- Having driven a large passenger vehicle (carrying 44 passengers, permitted carrying capacity 44) equipped with sleepers at 44km/hour on a frozen road, at 58 km mark by 500m on 540 County Road in Yanhe County, Mr. Luo sideslipped and left the road, killing 15 people and injuring 27. Which of the following law-breaking acts did Mr. Luo commit?
- The sign on the right warns of an abrupt slope section ahead.
- Having driven his truck at 90km/hour on an urban road without road lamps, Mr. Zhou is passing a narrow road using the high-beam and cutting off the way of an oncoming passenger car that runs into the right guardrail as a consequence. Which of the following law-breaking acts did Mr. Zhou commit?
- In such circumstances, which one of the following statements is the safest measure for a motor vehicle driver to take?
- Before setting off, it is necessary to check the driving cabin, engine cabin, external and tires of the motor vehicle.