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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?
2025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 2025 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
- When a wounded person suffering bone fracture in the thigh, shank and spine, it is necessary to keep the fracture in position and refrain to move the wounded person.
- 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.
- How should lamps be used by the motor vehicle driver who follows a vehicle on a road section at night where he street light condition is good?
- 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.
- What is the meaning of this sign?
- When the wounded person is suffering main artery bleeding, where should the rescue personnel press by thumb to stop the bleeding?
- When rescuing a wounded person suffering spinal fracture, it is necessary to ___________.
- What is the meaning of this sign?
- What should motor vehicle drivers do when parking temporarily on a rainy day?
- When rescuing a person sustaining full-body burns the rescue personnel may spray cool water to his body to put out the fire.
- What is the meaning of this sign?
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.
- When a wounded person is under the wheel or cargo, the wrong method is to pull the limbs of the wounded.
- How should lamps be used when motor vehicle drivers pass through a two-way tunnel?
- When the tire pressure is too low, what can happen when driving at a high speed?
- What is the meaning of this sign?