33. When putting out a fire disaster that gives out erosive steam or poisonous gas, the firefighters should wear gas masks and other related protective articles and should operate from the windward side.

Answer：Y

Previous question: 32. Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.

Next question: 34. When a gas tanker is leaking heavily, which of the following measures is wrong?

2026年摩托车科目四英文版题库共345题，你可以免费查看前50题，完整版题库请添加微信购买：

The English version of the 2026 motorcycle subject 4 question bank has a total of 345 questions. You can view the top 50 questions for free. Please add WeChat to purchase the complete version of the question bank.

科目四试题

In emergencies, people¡¯s life safety should always be put in the first place.
What is the meaning of this sign?
What is the meaning of this sign?
When using splints, sticks or tree branches to keep the unexposed bones in position, it is necessary that these things should exceed the upper and lower joints of the wound.
What should the driver do to follow other motor vehicles on a mountain road?
When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
When a wounded person is unable to get off the vehicle by himself, he should be removed from the vehicle so as to avoid a secondary injury.
What should be checked before driving?
How should lamps be used when a motor vehicle meets an oncoming bicycle on a narrow road or a narrow bridge at night?
When rescuing the persons who are losing blood, it is necessary to ______ first.
What is the meaning of this sign?
What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.
What is the meaning of this sign?
When discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.
What is the meaning of this sign?