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

When the tire pressure is too low, what will happen if the tire changes its shape in waves and increases in temperature due to fast movement?
When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.
What is the meaning of this sign?
When a motor vehicle temporarily stops in fog, which lamp should be turned on?
What is the meaning of this sign?
When driving on a long downhill road, which is the best way to control driving speed?
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 a wounded person suffering from bone fracture, which of the following should be kept in mind?
When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
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 main impact of foggy weather on safe driving?
When two vehicles approach each other on a foggy day, what is the best method of safe driving?
When rescuing a wounded person in an emergency, it is necessary to firstly stop the bleeding by compression before other methods are taken according to the conditions of bleeding.
What is the meaning of this sign?
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.